Conversations: the very last word in instant messaging
https://conversations.im/
An open source instant messaging client. Easy to use, reliable, battery friendly. With built-in support for e2e encryption, group chats and media transfer.
https://lobste.rs/s/4jqfz1/breaking_up_with_google_play_why and the linked article by the author
Ask HN: Am I crazy or is Android development awful? | Hacker News
https://news.ycombinator.com/item?id=41062292