Personally paid for Niagara launcher as I find that to be the far superior launcher to any other I've tried. My second one is Symfonium, the most feature rich and well developed audio player.
My Android paid must haves are: Titanium Backup (for scheduled backups and quick recovery), Threema (Messenger) and airMusic (former AirAudio, stream from mobile to e.g. Sonos).
Currently limited to groups chats of 256 participants and group calls of 16 participants
For privacy, freedom, and control, iOS is out. As with Telegram, I advise staying away from the Google variant and highly recommend the Threema Libre implementation for Android. Licenses are not compatible across variants, so stick with the Threema Shop!
Open source full E2EE (end-to-end encryption) platform with regular security audits
"While some of the findings presented in the paper may be interesting from a theoretical standpoint, none of them ever had any considerable real-world impact," the post stated. "Most assume extensive and unrealistic prerequisites that would have far greater consequences than the respective finding itself."