S2MSP APK Download v3.8.1 (Latest Version) for Android
⬇ Download APK v3.8.1The latest version of S2MSP APK (v3.8.1) is available to download. SMS communication for apps restricted on phone numbers This app works on Android phones and tablets.

About S2MSP APK
As Google strongly restricts the use of SMS permissions for applications in the Play-Store, S2MSP provides an API for third party applications to send and receive SMS to specific phone numbers via a secure SMS proxy. S2MSP acts like a local firewall for SMS communication. Each application that wants to send/receive SMS to a phone number can register itself on S2MSP. S2MSP asks the user for permission, whether the requesting application is allowed to send/receive SMS from and to the requested phone numbers or not. All SMS exchanged with third party applications are strongly encrypted. S2SMP itself requires SMS permissions (SEND_SMS and RECEIVE_SMS) from the Android system and will request these permissions upon startup. S2MSP does not need any other permissions. This ensures the integrity and security of S2MSP. The API to integrate a third party application with S2MSP is available in Maven-Central.
S2MSP APK was developed by Markus Friedli and is available under the Apache-2.0 open-source license. This means the source code is public and anyone can inspect it. If you like Connectivity apps, you can also browse more apps in this category.
S2MSP APK Information
| App Name | S2MSP |
| Package | com.github.frimtec.android.securesmsproxy |
| Version | 3.8.1 |
| Size | 6 MB |
| Requires | Android 7.0 and up |
| Category | Connectivity |
| Developer | Markus Friedli |
| License | Apache-2.0 |
| Source | IzzyOnDroid |
| Last Updated | August 16, 2026 |
How to Install S2MSP APK on Android
- Download the S2MSP APK file using the button above.
- Open your phone Settings and allow “Install unknown apps” for your browser or file manager.
- Tap the downloaded APK file and press Install.
- After installation, open S2MSP from your app drawer.
Why Download S2MSP APK from Here?
We link S2MSP APK directly from IzzyOnDroid, so the file is original and we make no changes to it. Whenever a new version is released, this page is updated automatically, so you always get the latest S2MSP APK.
Frequently Asked Questions
Is S2MSP APK free?
Yes, S2MSP APK is free and available under the Apache-2.0 open-source license.
Is S2MSP APK safe?
This file comes from the IzzyOnDroid repository, where APKs are taken from the developers' official repositories. Still, always check an app’s permissions before installing it.
Which Android version does S2MSP APK need?
S2MSP APK requires Android 7.0 and up to run.
What is the latest version of S2MSP APK?
The latest version is 3.8.1, updated on August 16, 2026.
Official page: S2MSP official website / source