I think OP is talking about social messaging apps like ime lab. It used telegram api but with wallet and probably DeFi integrations.. https://www.Bitget ( Bitget warning )/academy/what-is-ime-lab-lime-and-how-does-it-work
I never heard about this Lime before, I don't like that it uses telegram api and it doesn't look very good to me at all, especially knowing they have some worthless token attached to it.
For anyone who seriously wants secure and private messenger app I would recommend checking out SimpleX chat, it works both on desktop computers and mobile devices.
This is much better than Telegram and everything else with telegram api.