Look at https://riot.im as a replacement to #WhatsApp. It is decentralized similar to #Mastodon but suited for private conversations and groups with end to end encryption for assured #privacy It is powered by #Matrix protocol and two instances are manged by Indians https://diasp.in and https://poddery.com
It is also centralized by design, definitely better than #WhatsApp and #Telegram since it is #FreeSoftware. You still have to depend on a single entity, so easy to block and we never know what happens when leadership changes. You cannot run a #Signal instance yourself if you want to interoperate with users of official Signal server. With #Matrix anyone can run a server, just like #mastodon and we already run 2 such servers https://poddery.com https://diasp.in
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!