Verdelic
Verdelic is the independent studio of Ibrahim Hajjaj. Everything below is shipped, in the stores, on wordpress.org or on GitHub, and still being worked on.
The Quran with tafseer and three riwayat, daily adhkar, prayer times and azan. Works offline, available in 25 languages. Free, with no ads and no in-app purchases.
Shared lists and tasks for people who need one list to stay in sync, without an account for everyone involved.
Backups for WordPress that restore when you actually need them, rather than only completing when nothing is wrong.
Safety rails for the WordPress Abilities API, so an agent acting on a site cannot quietly do more than it was asked.
Find and replace across a WordPress database that shows you every match before it writes and can undo the run afterwards, so a migration does not quietly corrupt serialized data.
Independent benchmarks of WordPress backup plugins: how long they take, how much they store, and whether the restore works.