I'm wondering if it's possible the read messages from telegram channel from the iOS app.

I want to parse public channel to implement an application which will show a map with latest Air-Raid sirens in Ukraine. There's official channel here - https://t.me/air_alert_ua, which I'd like to parse, and then draw an overlay on the map in an iOS app, like on the following web-site.

I know that there's telethon client for python, but running python inside iOS app isn't a very good idea and perhaps there's a better way. Any help is greatly appreciated.