Ultrasurf

Download Ultrasurf v3.3.6 APK (12.83 MB). Secure, free VPN for Android that protects your browsing. Easy install, compatible with Android 5.0+.

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Britney Davisson
Reviewed by Britney Davisson

Ultrasurf is a lightweight VPN application for Android that aims to keep your online activity private. It routes your traffic through encrypted servers, helping you bypass censorship and protect personal data on public Wi‑Fi.

This page provides the latest version details, installation guide, basic troubleshooting, safety tips, and a quick comparison with other popular VPN tools.

Quick Information

App/Game NameUltrasurf
Latest Version3.3.6
DeveloperNot listed
CategoryApps / Tools
App Size12.83 MB
Package Nameus.ultrasurf.mobile.ultrasurf
Last Updated1 October 2026

What Is Ultrasurf?

Ultrasurf works as a proxy‑based VPN, encrypting the connection between your device and the internet. Its core features include:

  • Free, unlimited browsing without a subscription.
  • Simple one‑tap connection to hide your IP address.
  • Support for most Android smartphones and tablets.

The app is designed for users who need quick privacy protection without complex configuration. It does not offer advanced features such as split tunneling, dedicated IPs, or a built‑in ad blocker.

Compatibility

Android Version✓ Verified — Android 4.1 and later
Architecture (ARM64 / 32-bit)Not Verified
Internet Connection✓ Verified — May be required for ads, updates, or login
Storage NeededNot Verified
OBB/Data FilesNot Verified
Root RequiredNot Verified

How to Install

  1. Enable Unknown sources in Settings > Security (or allow the file manager to install apps).
  2. Download the Ultrasurf APK file to your device.
  3. Tap the downloaded file and follow the on‑screen prompts to install.
  4. Once installed, open the app and tap the main button to connect.
  5. If a prompt appears asking for VPN permission, grant it to start the service.

Troubleshooting

  • App not installed: Verify the APK matches the device’s architecture (most devices use ARM). Clear any previous Ultrasurf installations before retrying.
  • Crashes on startup: Ensure the device runs at least Android 5.0 (Lollipop). Re‑install the app after clearing cache and data of the package installer.
  • Cannot connect to VPN: Check that no other VPN or proxy is active. Disable battery‑saving modes that may block background network access.
  • Login or authentication issues: Ultrasurf does not require a user account. If a login screen appears, it may be a phishing overlay—close the app and reinstall from a trusted source.

Safety & Security

Ultrasurf is a modified‑free release, but as with any third‑party APK, download it from a reputable source. Review the permissions it requests; typical VPN apps need network access and the ability to create a VPN connection. Avoid entering sensitive credentials (banking, passwords) while using any unofficial build.

Because the app is free and does not require a subscription, updates may be less frequent. An updated version could change the server list or introduce new privacy policies, so keep an eye on release notes when a newer build appears.

How Ultrasurf Compares

FeatureUltrasurfTurbo VPNProton VPN
Price / Free ModelFree, no adsFree with ads, paid premiumFree tier limited, paid plans available
Platform AvailabilityAndroid onlyAndroid, iOS, WindowsAndroid, iOS, macOS, Windows, Linux
Standout FeatureOne‑tap proxy connection, minimal UIFast servers, auto‑connectStrong no‑logs policy, Secure Core routing
Best ForUsers needing a quick, free privacy toolCasual users who want fast connectionsPrivacy‑focused users requiring strong encryption

Alternatives

If you want more features or broader device support, consider these well‑known VPN apps:

  • Turbo VPN – Offers a large server network and a premium option for higher speeds.
  • Proton VPN – Known for its strict no‑logs policy and advanced security features.
  • Hotspot Shield – Provides a free tier with daily data limits and a paid plan for unlimited use.

Final Verdict

Ultrasurf delivers a simple, ad‑free VPN experience for Android users who need basic privacy without a subscription. It’s lightweight and easy to set up, but it lacks advanced settings found in premium services. Verify the APK source, check permissions, and ensure your device runs Android 5.0 or newer before installing.

Frequently Asked Questions

Ultrasurf is a free VPN that encrypts your traffic, but you should download the APK from a trusted source and review the permissions it requests.

The app works on Android 5.0 (Lollipop) and newer.

No, Ultrasurf does not require any registration or login.

Yes, you can install the APK over an existing installation; the app will be updated to the new version.

This can happen if the APK is corrupted, not compatible with your device's CPU architecture, or if a previous version was not fully removed.

Older versions may be found on reputable APK archives, but using the latest version is recommended for security and compatibility.

No, Ultrasurf is a single‑file APK and does not require additional OBB or data packages.

Running any VPN can increase battery usage slightly because of encryption overhead, but the impact is usually minimal.