Proton VPN, OpenVPN for Android and Mullvad VPN are the closest alternatives listed for this app, and Fast VPN & Proxy sits between them in scope. It is more than a bare OpenVPN client, since it adds an ad blocker and several protocols in one app. It is published by Windscribe under the package com.windscribe.vpn.
Windscribe's open-source Android client
Windscribe makes this VPN and publishes it at windscribe.com. The Android client is released under GPL-3.0-only, and its source lives on GitHub in the Windscribe/Android-App repository. The first release was on July 9, 2023, and the current build is version 4.3, updated on September 3, 2026.
The developer says it has had more than 110 million registered users since 2016.
WireGuard, Stealth and the R.O.B.E.R.T. ad blocker
The tunnel runs on WireGuard by default, and you can switch to IKEv2, OpenVPN over UDP or TCP, Stealth or WStunnel. The developer says IKEv2, OpenVPN and Stealth use AES-256 encryption. Stealth and WStunnel disguise traffic as ordinary web traffic, which is meant for restricted school, work or hotel networks.
Other tools include a kill switch configured in Android settings, split tunneling to choose which apps use the tunnel, and Auto-Secure, which turns protection on when the phone joins a new Wi-Fi network. The ad blocker, called R.O.B.E.R.T., filters ad, tracker, phishing and malware domains at the DNS level. Servers cover 135+ cities in 69+ countries, and the developer says they run on RAM with no identifying logs.
The free Starter plan gives 10 GB a month once you confirm an email, with servers in 10 countries. The Pro subscription removes the data cap, opens every location and adds port forwarding. One account covers all your devices.
Android 7.0 and a 92.2 MB download
The app needs Android 7.0 or newer. The package is 92.2 MB, which is large for a VPN client. It has a content rating of Everyone.
It contains no ads but has in-app purchases, which fits the Pro subscription. The app is free to install.
Fast VPN & Proxy pros and cons
Pros
- Open source under GPL-3.0-only, with the code on GitHub
- No ads, and a DNS-level blocker for ad, tracker and malware domains
- Protocol choice: WireGuard, IKEv2, OpenVPN, Stealth and WStunnel
- Free Starter plan with 10 GB a month after email confirmation
- Split tunneling and a kill switch for control over traffic
Cons
- The free plan limits servers to 10 countries and 10 GB monthly
- In-app purchases are needed for unlimited data and every location
- At 92.2 MB the download is heavy for a VPN
- The kill switch must be set up in Android settings
Is Fast VPN & Proxy safe?
The file is unmodified, and its SHA-256 checksum is fcdb00447206efbf485c1267899159537bbad7425a9a17300949e9f48bfc872d. Windscribe publishes the app, and the Android client code is open under GPL-3.0-only, so anyone can read how it handles the VPN tunnel. The app carries no ads. What the service does with traffic on its servers depends on the developer's own statements.
How to install Fast VPN & Proxy
- Download the APK with the button on this page and wait for it to finish.
- Compare the file with the SHA-256 checksum shown here if you want to confirm it arrived intact.
- Open the file on your phone and allow installs from this source when Android asks.
- Finish the install, then open Fast VPN & Proxy from your app drawer.
