Thunder VPN – Fast, Safe VPN

by Secure Signal Inc.

4.8 ★ 1.8M+ reviews
152M+ Installs
11/03/2017 Released
Thunder VPN – Fast, Safe VPN icon
Thunder VPN – Fast, Safe VPN icon
Tools

Thunder VPN – Fast, Safe VPN

by Secure Signal Inc.

4.8 ★ 1.8M+ reviews
152M+ Installs
11/03/2017 Released
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Ratings Breakdown

4.8 ★★★★★ 1.8M+ ratings
5 ★ 90%
4 ★ 4%
3 ★ 1%
2 ★ 1%
1 ★ 4%

Data from Google Play at the time of writing.

What Thunder VPN Actually Does

Thunder VPN is a one-tap VPN app aimed at people who just want to get online securely without wading through configuration screens. There’s no registration, no setup wizard, just a big button you press to connect. It’s built for casual users, students on restricted school Wi-Fi, or anyone who wants basic encryption on public networks without learning what a tunneling protocol is. It’s not aimed at power users who want granular control over protocols or dedicated static IPs.

Where It Performs Well in Daily Use

The most consistent praise from real users is speed and simplicity. Multiple reviewers mention it connecting extremely fast, with one student specifically noting it cuts through restrictive school Wi-Fi blocking systems effectively. Users also highlight that even the free tier lets you choose which specific apps route through the VPN, a feature some competitors reserve for paid plans. Several reviewers who tested for connection leaks reported finding none, and the ad situation seems genuinely tolerable, with ads described as static images at open/close rather than intrusive video ads you can’t skip.

The Disconnection Problem

The biggest recurring complaint is that the app drops connection when the phone goes to sleep or sits idle for a while. One user specifically called out that the ‘always on’ setting simply doesn’t work as advertised, forcing manual reconnection repeatedly throughout the day. This is a real reliability issue if you expect a VPN to stay silently active in the background protecting all your traffic. Another practical annoyance: the VPN can interfere with apps like PayPal, requiring you to toggle it off temporarily, which caught at least one user off guard the first time it happened.

Privacy Claims Versus What You Can Verify

The developer leans heavily on a no-logging policy and a small permissions footprint as selling points, and to their credit, the app does request fewer permissions than many rivals and keeps its package size small. That said, a strict no-logging claim from a free VPN is not something an average user can independently verify, and the review data here doesn’t include any third-party audit confirming it. Treat the privacy marketing as a selling point, not a guarantee.

Who Should Actually Download This

If you want a free, no-fuss VPN for occasional use, bypassing a school or workplace filter, or adding a layer of protection on public Wi-Fi, Thunder VPN delivers on the basics and the free tier is genuinely capable, including per-app VPN selection. If you need a VPN that stays connected reliably in the background at all times, or that you’ll trust with sensitive financial activity without extra vigilance, the disconnection-after-sleep bug and the app-conflict issue with services like PayPal are real friction points worth knowing about before you install it. It’s a solid casual pick, not an always-on security blanket.

Pros

  • ✓Very fast initial connection speed
  • ✓Free tier allows per-app VPN selection
  • ✓Minimal, non-intrusive ads reported
  • ✓Small package size, few permissions
  • ✓Easy for non-technical users to operate

Cons

  • ✕Disconnects when phone goes to sleep
  • ✕'Always on' setting reportedly unreliable
  • ✕Can interfere with apps like PayPal

What Real Users Say

Seabass Fernandez ★ 5/5

“Best free vpn I could find. I'm a high school student, so I need this a lot thanks to the school's AMAZING wifi and its blocking system 🙄. It works wonders, it connects EXTREMELY fast, and there are no real ads that I can tell, and it stays on even when you close the app. I'm not the type to…”

👍 3,399 found this helpful
Elaine Pocock ★ 5/5

“Pretty darn good. Probably going to pay for the pro version. Gotta turn it off to use PayPal app tho. No big deal but I freaked out the first time I couldn't get into my PayPal. My friend then told me to temporarily turn it off and sure enough. The second time I almost forgot about it but quickly recalled…”

👍 3,113 found this helpful
kai ★ 5/5

“Best VPN I've ever tried. Easiest ever to set up, and you can choose which apps use it even on free version. Yup the free version still has all the capabilities you need, the paid has everything else you could want. Great, fast connection, so far with zero drops. Perfect for my Android phone which is a Samsung Galaxy, but…”

👍 2,982 found this helpful

Reviews sourced from Google Play, selected by helpfulness at the time of writing.

App Info & Permissions

Developer Secure Signal Inc.
Content rating Everyone
Contains ads Yes
In-app purchases $1.99 - $59.99 per item
Installs 152M+
Released 11/03/2017
Price Free

Permissions this app requests

📶 Wi-Fi connection information View Wi-Fi connections

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Frequently Asked Questions

1

What is Thunder VPN - Fast, Safe VPN?

Thunder VPN is a one-tap VPN app from Secure Signal Inc. designed to encrypt your internet connection without requiring manual configuration or registration. It offers a global network of servers across America, Europe, and Asia, and lets users pick which apps route through the VPN on Android 5.0 and up. It's aimed at users who want quick, simple protection rather than advanced customizable VPN settings.

2

Is Thunder VPN free to use?

Yes, most servers are free with no usage or time limits, and users confirm the free version includes core features like per-app VPN selection. There is also a pro version mentioned by reviewers, though the free tier appears fully functional for everyday needs. Ads are present but are described as minimal static images rather than disruptive videos.

3

Does Thunder VPN stay connected in the background?

This is a mixed point based on real user feedback. Some users report it staying connected reliably even after closing the app, while others specifically say it disconnects when the phone goes to sleep despite enabling an 'always on' setting. If constant background protection is critical for you, test this behavior on your own device before relying on it fully.

4

Will Thunder VPN cause problems with other apps like PayPal?

At least one user reported needing to temporarily disable the VPN to log into PayPal, as the connection was blocked while the VPN was active. This isn't unusual for VPN apps in general since financial apps often flag VPN traffic as suspicious. Keep this in mind and be ready to toggle the VPN off for banking or payment apps if you run into login issues.

5

Is Thunder VPN good for privacy-conscious users?

The app advertises a strict no-logging policy and requests fewer permissions and a smaller package size compared to many competing VPN apps, which the developer frames as a privacy advantage. However, these claims aren't independently verified in the available user reviews, so you're relying on the developer's word. It's a reasonable choice for casual privacy needs like public Wi-Fi, but not necessarily for users with high-stakes security requirements.