Android gateway app

Install this on the phone whose SIM will send your messages. Pair it with your workspace, and your systems can send SMS through it over the API.

Version 1.0.0 · Android 8.0 or newer · needs a SIM card to send

Google Play

Recommended. Installs in one tap and updates itself.

Install without Google Play

For phones with no Play Store, or when you need to pin an exact version.

64-bit ARM

Almost every modern phone. Start here. · 23.8 MB

Verify what you downloaded

Compare this against your copy before installing. If it does not match, do not install the file.

shasum -a 256 chatvendor-gateway-1.0.0-arm64.apk

89c0c74ebe1a3f94de1cce3c5040462d3eadc8170a46f3b06e24261672bbd9a2

Only needed if the one above will not install.

32-bit ARM

Older devices that report armeabi-v7a. · 19.8 MB

45a71ffc413986c98b745c3487da37e847517a32416cac6b01ffe7477a68fbbc

Download

Universal

Every architecture in one file. Larger, but always works. · 62.9 MB

474db8fd118cecb4144d4909c7315b4e6fb1ef75b30b30dfbe15ea6bfaca9988

Download

Only needed if you skipped Google Play. Android asks for permission before installing an app from anywhere else, and that prompt is normal.

01

Download the APK on the phone

Open this page on the phone itself, or transfer the file to it.
02

Open the file

Android will ask whether to allow installing apps from this source. Allow it for your browser or file manager.
03

Install

Play Protect may warn you because the app is not from the Play Store. Choose to install anyway if you trust this download — verify the checksum above first.
04

Open the app and pair it

Sign in on a computer, go to Devices → Pair a device, and scan the code with the phone.

The phone can only send while it is powered on and has data. It reports its own battery and signal to the dashboard.

Android will otherwise stop the gateway in the background. Settings → Battery optimisation in the app opens the right screen.

Messages are billed by your mobile operator. Sustained volume from a consumer SIM is what triggers carrier blocking.

Installed from Google Play, it updates itself. An APK install does not — check this page for new versions.

Each one is explained in the app before Android's own prompt appears.

Send SMS	Required. This is how messages leave the phone.
Read phone state	Optional. Lists your SIM cards so you can choose which one sends.
Notifications	Optional. Android requires a visible notification while the gateway runs.
Camera	Optional. Only to scan the pairing QR code.
Start after reboot	Optional, off by default. Resumes the gateway after a restart.

It does not request permission to read or receive SMS. The gateway sends; it never reads your inbox.