Use APKPure App
Get SMS Gate old version APK for Android
الروبوت بوابة SMS بسيطة ومفتوحة المصدر
Allows you to backup all your SMS to Gmail. Also have simple SMS scheduler with multi sim support, no ads, open-source, GPLv3. This app uses Accessibility services (optional).
Web Interface:
https://axet.gitlab.io/android-sms-gate/