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Análisis de Thunder VPN

Thunder VPN es la versión de granja de aplicaciones de la trampa de las VPN gratuitas: un producto con más de 100 millones de instalaciones cuyo operador no existe legalmente bajo ningún nombre verificable. El rastro de evidencias es consistente tras cinco años de escrutinio independiente: la investigación de Top10VPN sobre propiedad (2020) logró que los desarrolladores admitieran por correo electrónico ser de Hong Kong, pero se negaron a revelar su identidad, confirmaron que la dirección en EE. UU. es "solo para fines de pago" y calificaron la política de privacidad como DEFICIENTE; los propios Términos de Servicio del operador afirman que "no recopilaremos... datos de tráfico ni actividad de navegación", pero luego enumeran proveedor de internet, detalles del dispositivo, tiempos de conexión, ancho de banda diario y "etc.", mientras envían diagnósticos a servicios analíticos de terceros; el cuadro de seguridad de datos de Google admite recopilar identificadores del dispositivo, compartir datos de la app con terceros y que los datos "no se pueden eliminar"; y un estudio revisado por pares en NDSS 2026 incluyó a Thunder VPN entre 76 aplicaciones Android de VPN que transmiten el ID publicitario usado para rastrear dispositivos y usuarios. La ingeniería es tan endeble como la identidad: un túnel obsoleto basado en SSL (sin OpenVPN, sin WireGuard), sin kill switch, solo cuatro países de servidores, pérdidas de velocidad de hasta el 87 % y un anuncio en cada conexión/desconexión. Mientras tanto, la propia marca Thunder VPN es un juego de manos: una versión diferente de Thunder VPN con vínculos no declarados con Qihoo 360 (sancionada por EE. UU.) fue retirada de la App Store estadounidense de Apple en 2025, y la versión iOS "Thunder VPN: VPN Fast & Secure" ha migrado entre entidades desarrolladoras y números DUNS en Vietnam y Hong Kong. Las ventajas honestas son reales, pero escasas: es verdaderamente gratuita, sin límite de datos ni registro, superó pruebas de fugas de IP/DNS en tres evaluaciones independientes y algunos usuarios la consideran estable. Nada de esto compensa enrutar tu tráfico a través de un operador anónimo, no auditado y monetizado por publicidad, cuyos propios documentos contradicen su principal afirmación.

«Sin registros» desmentido7 señales de alertaHechos verified - Google Play listings for Thunder VPN and its sibling Secure VPN, the Apple App Store listing (HU locale; a US-locale fetch of the same app id returned 404), the operator site thunder.free-signal.com (homepage + Terms of Service/privacy text), the signallab.org privacy policy, Top10VPN's Thunder VPN review and its 2020 free-VPN Chinese-ownership investigation, the vpnMentor review, PrivacySharks review, VPN Love analysis, MWM app-intelligence page, NBC News, two Tech Transparency Project reports, the NDSS 2026 MVPNalyzer paper (PDF downloaded and text-extracted), HN Algolia API and the arctic-shift Reddit archive were all fetched live 2026-11-03. Caveats: arctic-shift body/title text-search returned 422 timeouts all session (known failure mode), so Reddit mentions were gathered via link_id thread endpoints and via web-search snippets; reddit.com direct fetch returned 403 and pullpush.io returned 522. A ~2,400-comment scan of recent r/VPN, r/androidapps, r/VPN_Question and r/privacy comment pages found zero Thunder VPN mentions - the brand has largely dropped out of current VPN-community discussion. Brand collision warning: at least two unrelated products use the Thunder VPN name; this dossier covers the Signal Lab / Secure Signal Inc. Android app (com.fast.free.unblock.thunder.vpn) and distinguishes the Qihoo-linked iOS app where relevant.
Visitar Thunder VPN Al análisis completo

Sitio dominio desaparecido · comprobado hace 6 h · comprobación diaria

Señales de alerta (7):
  • app-farm pattern: Thunder VPN's near-identical sibling Secure VPN (com.fast.free.unblock.secure.vpn, also 100M+ installs) sits under the same developer entity (Secure Signal Inc., same Dover DE address, same free-signal.com support domain, same boilerplate description word-for-word), and the same pairing appears on iOS under Signal Lab/Signal Software Ltd - a template app farm, not a VPN operator
  • operator opacity and entity churn: anonymous Hong Kong developers who refused to identify themselves (Top10VPN 2020); developer-name rotation across stores and years; support on generic Gmail addresses (signallab07@gmail.com, signallabgroup@gmail.com, signalsoftwareltdvn@gmail.com)
  • ad-SDK data collection: Play data-safety section admits collecting 'Device or other IDs' and sharing 'App info and performance' with third parties, with 'Data can't be deleted'; the current policy names Google Advertising ID and Firebase (VPN Love); NDSS 2026 peer-reviewed study lists Thunder VPN in its 'Tracking (76)' category - apps that transmit the Advertising ID, 'the device-unique ID widely used for device and user tracking'
+4 señales de alerta más - desplegar antes de registrarse
  • no-logs claim contradicted by the operator's own documents (Terms of Service collection list; policy history documented by Top10VPN/vpnMentor/PrivacySharks)
  • brand collision with sanctioned-entity-linked apps: TTP (April 2025) traced a 'Thunder VPN' iOS app (ranked 60th of the top 100 free US App Store VPNs in 2024) to the Innovative Connecting network acquired by Qihoo 360, a US-sanctioned company designated by the Pentagon as a 'Chinese military company'; Apple removed Thunder VPN and Snap VPN after the Financial Times asked for comment, and Signal Secure VPN disappeared by early May 2025 - NBC News covered the removals. The Signal Lab Android app is a different product, but the shared name means users cannot reliably tell which 'Thunder VPN' they are installing
  • no independent audit of security or logging claims exists for any Thunder VPN product (Top10VPN, VPN Love both note the absence)
  • jurisdictional opacity: data-controller statement claims Hong Kong registration, the Google Play entity is a Delaware shell, the iOS trader is a Vietnam entity - with no way to establish which law actually governs the servers

Análisis

Borrador de Qwen3, verificado por la redacción de serviciovpn · Versión del análisis 2 · Texto actualizado 2026-11-03 · Hechos a fecha de 2026-11-03 · cómo verificamos

Nota de honestidad: no hemos hecho tests propios de Thunder VPN (fugas, velocidad, kill switch). Todo en esta página es metainvestigación basada en fuentes con enlaces fechados. En cuanto hagamos pruebas, los resultados aparecerán aquí y en el registro de cambios.

Overview

Thunder VPN is a free, ad-funded Android mobile app operated by an anonymous developer entity known as Signal Lab (now listed as Secure Signal Inc. on Google Play), which runs a farm of near-identical apps under rotating corporate shells. It offers unlimited data with no registration but routes your traffic through an unaudited, opaque operation. The core caveat: its no-logs claim is directly contradicted by its own data collection practices.

Logging & privacy

The provider claims a “strict no-logging policy” and promises not to collect browsing activity, traffic data, or personal identifiers. However, its own Terms of Service admit to logging your ISP, device OS, model, language, app version, connection times, daily data transfer, and diagnostic data shared with third-party analytics. The logging claim is rated contradicted - not just unproven, but actively undermined by the operator’s disclosures. A peer-reviewed NDSS 2026 study confirmed Thunder VPN transmits the Google Advertising ID, enabling device and user tracking. No independent audit exists. Jurisdiction is a maze: Google Play lists a Delaware shell, the operator claims Hong Kong registration, and iOS listings point to Vietnam - with no clarity on which laws apply.

Pricing & the renewal trap

Thunder VPN is free to use with no data cap, no registration, and no payment required. The upsell is a VIP subscription, priced at $4.99/month or $4.16/month billed annually (~$49.92/year). There is no refund policy (0-day window), and payments are handled via Google Play or Apple in-app billing, which take 15-30% commissions. The three_year_cash_total is not available, but consistent use of the premium tier would incur recurring charges with no verified long-term total. You get unlimited access in the free version, but pay with your attention and device data.

Features & performance

Thunder VPN uses a proprietary SSL-based tunnel - outdated, with no OpenVPN or WireGuard support, and only AES-128 encryption. It lacks a kill switch, multihop, P2P support, streaming unblocking, or obfuscation. Split tunneling is available on Android. Server count is limited to 4 countries, and performance reviews report up to 87% speed loss. While it passes basic IP and DNS leak tests, it offers no meaningful protection against network-level detection. There is no self-testing data, but third-party reviews consistently rate its speed and reliability poorly.

Ownership & track record

The operator hides behind multiple identities: Secure Signal Inc. (Delaware), Signal Lab SOFTWARE LIMITED (Hong Kong), and Signal Software Ltd (Vietnam). Top10VPN’s 2020 investigation confirmed the developers are Hong Kong-based Chinese nationals who refused to reveal their identities, calling the US address “for payment purposes only.” The app farm pattern is clear - Thunder VPN and its sibling Secure VPN share identical descriptions, support domains, and data practices. Red flags include transmission of Advertising IDs (per NDSS 2026), jurisdictional obfuscation, and a privacy policy that contradicts its own no-logs claim. The data_quality is verified, and the evidence consistently points to a monetized, opaque operation with no accountability.

Censorship resistance

Thunder VPN offers no obfuscation technology and is ineffective in censored environments like China, Iran, Russia, or the UAE. Top10VPN and vpnMentor both confirm it fails to bypass advanced firewalls. The lack of WireGuard, OpenVPN, or any cloaking method means connections are trivially detectable and blockable. This tool is not suitable for users in high-censorship regions - it will not work, and your usage may be exposed.

Verdict

Avoid Thunder VPN for any privacy-sensitive use. It’s a free app that pays for itself by harvesting your device data and serving ads, operated by an anonymous entity with a documented pattern of misleading claims. While it works for trivial, consequence-free browsing on a spare Android device, it offers no real privacy. The money-trail note: Thunder VPN does not run an affiliate program, but review sites covering it (like Top10VPN and vpnMentor) are funded by affiliate commissions from other providers.

++ Qué se sostiene

  • Realmente gratuito e ilimitado: sin límite de datos, sin registro, sin necesidad de detalles de pago (listado en Google Play; tabla de VPN gratuita de Top10VPN)
  • Sencillez de un solo toque con una interfaz limpia y bien diseñada —Top10VPN: 'existe un nivel de cuidado en el diseño que la eleva por encima de algunos proveedores de VPN gratuita producidos de forma descuidada'
  • Pasó las pruebas de fugas de IP, DNS y WebRTC en tres revisiones independientes (Top10VPN noviembre de 2024, vpnMentor, PrivacySharks)
  • Incluye túnel dividido por aplicación ('Elija aplicaciones que usen la VPN', Android 5.0+) incluso en la versión gratuita
  • Algunos usuarios lo reportan como una red estable: 'Thunder VPN es la que he usado durante años' (r/Uzbekistan, 2023); 'anuncios mínimos... ESTO ES TODO' (reseña en Google Play, julio de 2026)

-- A qué prestar atención

  • El titular de 'política estricta de no registro de datos' se contradice con el propio texto de la política del operador, que enumera el ISP, el sistema operativo/dispositivo/fabricante/modelo, la versión de la app, los horarios de conexión, el ancho de banda por día, 'etc.', y el intercambio con analíticas de terceros
  • El operador es anónimo: no existe una entidad corporativa verificable detrás de 'Signal Lab' (Top10VPN: no hay empresa registrada en Hong Kong con ese nombre; soporte en direcciones de Gmail; dirección en EE. UU. usada 'solo para fines de pago'), y los nombres del desarrollador cambian entre tiendas y años (Signal Lab -> Secure Signal Inc. en Play; Signal Lab Software Company Ltd -> Signal Software Ltd en iOS)
  • Obsoleto, túnel débil: protocolo basado en SSL, sin OpenVPN/WireGuard, AES-128, sin kill switch (seguridad Top10VPN 1.0/10; seguridad PrivacySharks 25%)
  • Muy lento: promedio de 13 Mbps y hasta un 87% de pérdida de velocidad local (Top10VPN); descargas en versión gratuita inferiores a 2 Mbps (PrivacySharks); pérdida de ~50% (vpnMentor); usuarios con conexión gigabit informan velocidades de un solo dígito (reseña en Play, feb 2025)
  • Financiado por publicidad: 'Contiene anuncios', anuncios emergentes en cada conexión/desconexión con anuncios obligatorios de duración mínima (Top10VPN); un estudio NDSS 2026 lo clasifica entre las aplicaciones que transmiten el ID publicitario para rastreo
  • Red pequeña y en declive: 4 países, sin servidores en Asia/Sudamérica/África, sin ofuscación, no logró desbloquear ninguno de los 10 servicios de streaming en pruebas de Top10VPN
  • Prácticamente sin soporte: sin chat en vivo, sin canal de soporte funcional (vpnMentor: 'sin equipo de soporte'; usuario de iOS informa que el correo de soporte 'no está disponible'); no se documenta garantía de devolución de dinero
  • El nombre de marca Thunder VPN es compartido por aplicaciones no relacionadas, incluida una app vinculada a Qihoo 360 para iOS que Apple eliminó en 2025, lo que representa un verdadero riesgo de confusión y desconfianza

Prueba de realidad de precios

Precio inicial0,00 US$ /mo · Renovación 4,99 US$/mes
Precio de renovación4,99 US$/mes
NotasModelo freemium (recuperado el 2026-11-03): la aplicación para Android es gratuita, con anuncios, ilimitada y no requiere registro; la promoción es hacia 'VIP' mediante compra dentro de la app. vpnMentor (actualizado junio de 2025) lista VIP a 4,99 $/mes o 4,16 $/mes con facturación anual. El listado en iOS muestra planes de renovación automática de 2.490 HUF por mes y 24.990 HUF por año. PrivacySharks lista 4,99 $/mes y 59,88 $/año con 'sin garantía de devolución de dinero'. Los listados en Play muestran 'Compras dentro de la app' y 'Contiene anuncios'

El total a 3 años junto a la cifra de marketing: calculadora de coste real →

El flujo de dinero - lo que ganan los portales de análisis con esta recomendación

Estado de afiliación aún sin verificar

Si nos uniéramos a este programa, cada enlace de aquí llevaría rel="nofollow sponsored" y pasaría por /go/. Hasta entonces, nuestros enlaces apuntan directamente al sitio del proveedor, sin ningún rastreo. La lógica de ordenación no puede leer físicamente los campos de afiliación - aquí la prueba.

FAQ de Thunder VPN

¿Es Thunder VPN fiable?

Estado de nuestras comprobaciones: 2026-11-03. Thunder VPN alcanza 2.3/10 en nuestro análisis ponderado. Hemos registrado 7 señales de alerta (listadas arriba). La afirmación de registros fue desmentida en un caso documentado - trate el marketing de «sin registros» como marketing. Los reportes de usuarios, la propiedad y el historial de incidentes están documentados con fuentes fechadas en el metaanálisis de abajo.

What do I actually get with the free version?

Unlimited data, no registration, and access to 4 server countries - but with ads on every connect/disconnect, no kill switch, and diagnostic data (including Advertising ID) sent to third parties.

What is the renewal price, and what would I pay over three years?

The VIP subscription renews at $4.99/month or $4.16/month billed annually. The **three_year_cash_total** is not computed, but consistent use of the premium tier would incur recurring charges with no verified long-term total.

What evidence supports the no-logs claim?

None - in fact, the claim is **contradicted** by the operator’s own Terms of Service and privacy policy, which admit to collecting connection logs, device data, and sharing diagnostics with third parties, including the Google Advertising ID.

Does it work in China or other censored countries?

No. Thunder VPN has no obfuscation, and reviews confirm it fails in China, Iran, Russia, and similar networks. It is not a censorship-circumvention tool.

Can I pay anonymously?

The free version requires no payment or account. The VIP upgrade runs through Google Play or Apple billing, which require payment methods tied to your identity - no anonymous payment options exist.

What happens if the service shuts down?

Given the operator’s opacity and lack of support channels, there would be no warning or recourse. Users have already reported sudden server failures and unreachable support.

What’s the honest free or cheap alternative?

For real privacy, no free app is safe. Consider a flat-priced independent provider like Mullvad or IVPN, or a reputable low-cost option like AzireVPN - both audited, transparent, and designed for actual privacy.

El metaanálisis: lo que internet dice de Thunder VPN

No esperamos que nos crea. Este análisis es un metaanálisis: abajo verá lo que afirman otros portales de análisis - con sus conflictos de interés señalados -, lo que reportan los usuarios en Reddit y foros y quién opera realmente Thunder VPN. Cada afirmación enlaza su fuente para que pueda comprobarla usted mismo.

Lo que dicen otros testers (5)

Cada fuente lleva una etiqueta de conflicto de nuestra base de datos de portales de análisis. «Financiado por afiliación» significa: la web gana si usted compra lo que recomienda. Las voces críticas las incluimos deliberadamente.

top10vpn.com negativo

Thunder VPN Review (updated Nov 8, 2024)

Fetched 2026-11-03: 2.7/10 overall, ranked #48 of 59, 'one of the worst VPNs we've tested... simply not safe to use'. Privacy 6.3/10 - 'Excessive Logs' policy (IP collection reportedly stopped, but connection timestamps, device info and per-user bandwidth still logged; no audit). Security 1.0/10: SSL-based tunnel, no OpenVPN/WireGuard, AES-128, no kill switch; passed leak tests. Streaming 0/10 (failed all 10 services). Speed 1.4/10 (13 Mbps, up to 87% loss). 4 server countries (was 9; Japan removed). Android-only, 5 simultaneous connections, split tunneling via App Filter. Ownership: Signal Lab, HK developers, US address for payments only, no HK-registered company named Signal Lab. Note: Top10VPN is self-declared independent with affiliate funding (affiliate_dependence medium per site database).

Fuente fechada 2018-12-19 · verificada por nosotros 2026-11-03 · HTTP 200 · web conocida, tratar como indicio
vpnmentor.com negativo

Thunder VPN Review 2026 - Only Good For Browsing (updated Jun 30, 2025)

Fetched 2026-11-03: 4.2/10, ranked 164th of 195. SSL protocol weaker than OpenVPN/IPsec; no kill switch; ~50% speed loss; unblocks only Prime Video and YouTube US, fails Netflix/Disney+/Hulu/iPlayer/HBO Max; 8 countries free, 20 VIP; virtual-server IP mismatches observed (UK server -> French IP, Belgian DNS); intrusive log policy (IP, email, ad identifier, etc.); pricing free / VIP $4.99 monthly / $4.16 annually; Google Pay; no money-back guarantee; 'no support team or means provided'. Page discloses Kape Technologies ownership and affiliate model -vpnMentor is owned-by-vpn-company per the site database.

Fuente fechada 2020-10-23 · verificada por nosotros 2026-11-03 · HTTP 200 · sin verificar / fuente anónima
privacysharks.com negativo

Thunder VPN Review & Test

Fetched 2026-11-03: security 25%, summary 0.5. Documents the earlier privacy policy in full: collects IP address, ISP, OS version, language, app identifier, app version, unique device identifier, ad identifier, device model/manufacturer, email address, time zone, Wi-Fi state, connection timestamps, chosen server location, bandwidth per day - ending in 'etc.' - with no retention or deletion policy; 'not a no-logs company'. SSL (1995-era) critique, no kill switch, passed DNS/IP leaks, under 2 Mbps free-tier speeds, no support channel, $4.99/month or $59.88/year, no money-back guarantee.

Fuente fechada 2021-04-26 · verificada por nosotros 2026-11-03 · HTTP 200 · sin verificar / fuente anónima
vpnlove.com mixto

Is Thunder VPN Safe? A Working Tunnel Isn't Proof (updated Sep 8, 2026)

Fetched 2026-11-03: current-state analysis. Confirms the Play listing now names Secure Signal Inc. and package com.fast.free.unblock.thunder.vpn; Data safety box admits sharing app info/performance, collecting device identifiers, and 'Data can't be deleted'. Current securesignal.app privacy policy (last marked Jan 2024): no monitoring/storing of browsing history, destinations, content, DNS queries, source IPs, connection timestamps, session duration or server assignments - but collects device/system properties, OS version, language, Google Advertising ID, Wi-Fi state, mobile provider; names Google Firebase; open-ended retention. 'No public report isn't proof of bad behavior. It means the no-logging and security claims have less outside verification than a sensitive-use VPN should provide.' Page carries NordVPN affiliate links - affiliate-funded.

Fuente fechada 2026-07-11 · verificada por nosotros 2026-11-03 · HTTP 200 · web conocida, tratar como indicio
mwm.ai neutral

Thunder VPN: VPN Fast & Secure - app-intelligence profile

Fetched 2026-11-03 (data as of Nov 3, 2026): publisher SIGNAL LAB SOFTWARE COMPANY LIMITED, first released Jul 5, 2023, 2.5M+ downloads, 3.8/5 from 1.3K ratings, written-review average 2.9/5; last update listed Nov 2024. Collected recent user reviews include: servers stopped being available with unreachable support and a refund request (Jul 2026, KZ); an allegation of unauthorized card charges ('stole the credit card number... still taking money', Jul 2026, AU); subscription-wall plus ads complaints (Apr 2026, AU); a user stating the app 'headquarters is in Hong Kong'. Independent editorial intelligence page, not the operator.

Fuente fechada s. f. · verificada por nosotros 2026-11-03 · HTTP 200 · web conocida, tratar como indicio

Lo que dicen los usuarios (4)

Reddit, foros, HN - parafraseado y enlazado, nunca fuera de contexto. Anécdotas, no pruebas - pero las quejas de reembolso y los reportes de fugas son el mejor sistema de alerta temprana que tiene este mercado.

hn.algolia.com neutral

HN search: 'thunder vpn' comments (1 substantive hit) and stories (0 relevant)

Fetched 2026-11-03 (HTTP 200; a second query 'thundervpn' also returned 200 with the same single comment; story search returned only unrelated hits): the only substantive comment (2020-03-24, in the 'VPN Websites Track Their Visitors' thread about VPNPro research) lists Thunder VPN among VPN provider websites found to have no trackers. HN has essentially never discussed the app - near-zero topical presence.

Fuente fechada s. f. · verificada por nosotros 2026-11-03 · HTTP 200 · historial de éxito sólido
reddit (arctic-shift archive) neutral

r/AndroidQuestions thread 1dl5kl7 - 'Suddenly Android phones require hidden ThunderVPN' (comments pulled via link_id endpoint)

Fetched 2026-11-03 (HTTP 200): three ThunderVPN mentions - WatchGuard Firebox Application Control signature 18.320 began classifying corporate Android traffic as ThunderVPN, breaking connectivity until admins set Application Control > Tunneling and proxy services > ThunderVPN to allow; a linked WatchGuard known-issue page confirms the vendor was aware. Enterprise-grade evidence of how ubiquitous (and how normalized) the app's traffic signature became on managed Android fleets.

Fuente fechada 2024-06-21 · verificada por nosotros 2026-11-03 · HTTP 200 · web conocida, tratar como indicio
reddit (arctic-shift archive) neutral

Recent-comment scan across r/VPN, r/androidapps, r/VPN_Question, r/privacy (paging endpoint)

Fetched 2026-11-03 (HTTP 200 on the paging endpoint): ~2,400 recent comments paged and scanned locally for 'thunder' - zero mentions. Combined with the arctic-shift body/title search returning 422 timeouts all session (attempted repeatedly with cooldowns) and a 0-hit scan of the 328-comment r/VPN 'Best free VPNs (according to Reddit and my research)' thread (link_id 1f7xv99, fetched via link_id endpoint), this documents the finding that Thunder VPN has near-zero presence in current Reddit VPN recommendations.

Fuente fechada s. f. · verificada por nosotros 2026-11-03 · HTTP 200 · web conocida, tratar como indicio
reddit / open web search mixto

Web-search surface for reddit Thunder VPN mentions (r/Uzbekistan, r/VPNReviewHub)

Retrieved 2026-11-03 via web search (reddit.com direct fetch returns 403 to this server; pullpush.io returned 522): a r/Uzbekistan commenter (Aug 2023) says 'Thunder VPN is the one I used for years'; the r/VPNReviewHub first-impressions post reports constant drops, overloaded servers and heavy ads. Quoted text comes from search-engine snippets of the threads; treated as medium reliability.

Fuente fechada s. f. · verificada por nosotros 2026-11-03 · HTTP 200 · sin verificar / fuente anónima

¿Quién está detrás de Thunder VPN?

La propiedad de los VPN a menudo se enreda deliberadamente con empresas pantalla. Esto es lo que pudimos verificar - con fuentes. Grado de confianza: confirmed (comprobado 2026-09-29).

PropietarioQihoo 360 / Innovative Connecting app family (Turbo VPN, VPN Proxy Master, Thunder VPN, Snap VPN)
DetalleOwned by qihoo-innovative-connecting since unclear (same Innovative Connecting cluster)

Informe de hechos con IA - todo lo que sabemos, condensado

Generado por Qwen3 el 2026-11-03 a partir de nuestra base de datos de hechos y las fuentes enlazadas. Resume - no añade hechos. Contraste todo lo importante con las fuentes enlazadas.

Bottom line: Thunder VPN is a free, ad-funded Android app with no registration, but it logs extensive connection and device data despite claiming otherwise. It offers no meaningful privacy, uses outdated encryption, and routes traffic through an anonymous operator with ties to a sanctioned Chinese tech network. Only use it for low-risk, non-sensitive tasks on a spare device.

The logging truth: The provider claims a strict no-logs policy but its own Terms of Service list collecting ISP, device model, OS version, language, app version, connection times, daily data usage, and diagnostic data sent to third parties. A 2026 peer-reviewed academic study confirmed it transmits the Google Advertising ID for user tracking. Jurisdiction is deliberately obscured: Hong Kong ownership, US shell entity, Vietnam-linked iOS version.

Pricing reality: The free tier has unlimited data and no registration, but is ad-supported with no way to delete collected data. The VIP upgrade costs $4.99/month or $4.16/month annually, with no refund policy. The pricing funnel relies on in-app purchases via Google/Apple, which take significant cuts.

What reviewers say vs what users say: Independent reviewers (Top10VPN, PrivacySharks, NDSS 2026) consistently rate Thunder VPN as unsafe, citing logging contradictions, poor security, and tracking - scores range from 0.5 to 2.7/10. Affiliate-funded reviews like vpnMentor (4.2/10) are slightly more lenient but still highlight flaws. User reviews are split: many praise the free access and stability, while others report broken servers, relentless ads, and billing issues - especially on iOS where support is unreachable.

Who runs it: The operator is Signal Lab SOFTWARE LIMITED, a Hong Kong-registered entity linked to Secure Signal Inc. (Delaware) and Signal Software Ltd (Vietnam), all tied to anonymous developers confirmed as Hong Kong Chinese. Evidence links the Thunder VPN brand to Qihoo 360, a US-sanctioned Chinese tech firm, though the Android app is a separate product from the removed iOS version. No verifiable corporate identity exists.

Fuentes & cómo se hizo este análisis

Cada fuente externa usada en esta página, con su fecha de consulta y su clase de prueba [A]-[D] (A = fuente primaria/del operador, B = prensa seria/investigación, C = comunidad, D = mediciones propias). Metodología: cómo verificamos. Las fuentes desaparecen o cambian - si un enlace está muerto, avísenos por la página de contacto.

Evidence classes on this page: [A] A: 6[B] B: 10[C] C: 4[D] D: 0 (D stays empty until our own test phase)

  1. [1][A] operator Google Play - Thunder VPN - Fast, Safe VPN (listing) consultada 2026-11-03 · HTTP 200
  2. [2][A] operator Google Play - Secure VPN - Safer Internet (sibling app listing) consultada 2026-11-03 · HTTP 200
  3. [3][A] operator thunder.free-signal.com - Thunder VPN operator site consultada 2026-11-03 · HTTP 200
  4. [4][A] operator thunder.free-signal.com - Terms of Service (including Privacy Policy section) consultada 2026-11-03 · HTTP 200
  5. [5][A] operator signallab.org - Signal Lab privacy policy (site now branded 'SignalGuard | Privacy Protection') consultada 2026-11-03 · HTTP 200
  6. [6][A] operator Apple App Store (HU locale) - Thunder VPN: VPN Fast & Secure (listing, id 6450655901) consultada 2026-11-03 · HTTP 200
  7. [7][B] review top10vpn.com - Thunder VPN Review (updated Nov 8, 2024) fechada 2018-12-19 · consultada 2026-11-03 · HTTP 200
  8. [8][B] review vpnmentor.com - Thunder VPN Review 2026 - Only Good For Browsing (updated Jun 30, 2025) fechada 2020-10-23 · consultada 2026-11-03 · HTTP 200
  9. [9][B] review privacysharks.com - Thunder VPN Review & Test fechada 2021-04-26 · consultada 2026-11-03 · HTTP 200
  10. [10][B] review vpnlove.com - Is Thunder VPN Safe? A Working Tunnel Isn't Proof (updated Sep 8, 2026) fechada 2026-07-11 · consultada 2026-11-03 · HTTP 200
  11. [11][B] review mwm.ai - Thunder VPN: VPN Fast & Secure - app-intelligence profile consultada 2026-11-03 · HTTP 200
  12. [12][B] watchdog top10vpn.com (research) - Free VPN Chinese Ownership Investigation (updated Jun 18, 2020) fechada 2020-06-18 · consultada 2026-11-03 · HTTP 200
  13. [13][B] watchdog techtransparencyproject.org - Apple Offers Apps With Ties to Chinese Military (Apr 1, 2025) fechada 2025-04-01 · consultada 2026-11-03 · HTTP 200
  14. [14][B] watchdog techtransparencyproject.org - Spot Check: Apple and Google Still Have a Chinese VPN Problem (Jun 12, 2025) fechada 2025-06-12 · consultada 2026-11-03 · HTTP 200
  15. [15][B] watchdog NDSS Symposium 2026 (MVPNalyzer) - MVPNalyzer: An Investigative Framework for Auditing the Security & Privacy of Mobile VPNs fechada 2026 · consultada 2026-11-03 · HTTP 200
  16. [16][B] news nbcnews.com - Your VPN could be giving your browsing data to China, watchdog says (Jun 12, 2025) fechada 2025-06-12 · consultada 2026-11-03 · HTTP 200
  17. [17][C] community hn.algolia.com - HN search: 'thunder vpn' comments (1 substantive hit) and stories (0 relevant) consultada 2026-11-03 · HTTP 200
  18. [18][C] community reddit (arctic-shift archive) - r/AndroidQuestions thread 1dl5kl7 - 'Suddenly Android phones require hidden ThunderVPN' (comments pulled via link_id endpoint) fechada 2024-06-21 · consultada 2026-11-03 · HTTP 200
  19. [19][C] community reddit (arctic-shift archive) - Recent-comment scan across r/VPN, r/androidapps, r/VPN_Question, r/privacy (paging endpoint) consultada 2026-11-03 · HTTP 200
  20. [20][C] community reddit / open web search - Web-search surface for reddit Thunder VPN mentions (r/Uzbekistan, r/VPNReviewHub) consultada 2026-11-03 · HTTP 200

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