To connect your Mini App to the App client, place the script miniapp-web-app.js in the tag before any other scripts, using this code:
<script src="https://openweb3.io/js/miniapp-web-app.js"></script>
Web apps can be loaded on Android, iOS, and web platforms. Here is a complete web app loading process:

OpenWeb3 mini-app is fully compatible with Telegram mini-app, and you can develop your mini-app following the Telegram way. Please refer to the documentation:
https://docs.telegram-mini-apps.com/
For some OpenWeb3 specific methods, such as setting fullscreen game mode or hiding the ActionBar, you will still need to develop your mini-app following OpenWeb3's integration approach.