Engraved

Memorising scripture is a spaced-repetition problem, and spaced repetition is a solved one. What did not exist was a version that felt calm rather than gamified.

Pick a verse, practise it with adaptive fill-in-the-blank review, and the scheduler brings it back right before you would forget it — ten minutes, a day, four days, ten days. Fourteen curated packs ship with it, you can add your own verses, and three public-domain translations are included verbatim: the Berean Standard Bible, the King James Version and the World English Bible.

Every part works fully offline with no account. That is a design decision rather than a limitation: nothing to sign up for means nothing to leak, and it works on a bus with no signal.