Open SSTP Client

KOBAYASHI Ittoku

About this app

This is a VPN client app for Secure Socket Tunneling Protocol.

Features:
- Simple for maintainability
- No Ads
- Open source (https://github.com/kittoku/Open-SSTP-Client)

Tips:
With the app's notifications allowed, you can get error messages and disconnect easily. Also, you can connect/disconnect from Quick Settings panel.

License:
This app and its source code are under MIT License. I'll do my best, but be sure that you use this app at your own risk.

Notice:
- Only SoftEther server is officially supported.
- This app uses VpnService class to establish SSTP connections.

False positive detections:
I tested this app's apk on VirusTotal and confirmed nothing detected as of 2022-11-18. I think I made this app as secure as I can by publishing its source, but it seems that some anti-virus softwares are still warning about this app. I'm sorry to say I cannot handle all false positive detections alone. Your available options may be,

1. Ignore the alert.
2. Submit a false positive report to your anti-virus software's vendor.
3. Build this app from its source.
4. Try another SSTP client.

I hope you will achieve secure communication in some way.

Ratings and reviews

To previous comments, it works with Mikrotik! you need to export the certificate used in server settings (pem format, tick Trusted in certificate settings), and put it in a folder on the phone. Also in the app, select that folder for trusted certificates. Basic Mikrotik settings without cert work only between Mikrotiks, you need a Windows way of settings for it to work

Hello, the software is good, but when I connect to Mikrotik, which has a self-signed certificate, the bandwidth is greatly reduced by the sstp protocol. It is below 1 megabit, while the bandwidth before connection is 30 megabits. Of course, this drastic drop in speed may be a limitation of the operator.

It was working perfectly for almost 3 months.but a few days ago it doesn't work any more. It gets connected for few seconds and then stops. I tried several host names and updated the app to the last release but the problem is still there. I would be grateful if you solve this issue. 🙏

What’s new

- Updated dependencies
- Fixed broken layout on Android 15 or newer

No need to update if the app works fine.

As always, if there is something wrong, please try reinstalling.