Tessera - A daily word puzzle where every letter is already there

Hi Product Hunt, I'm Paul, a product designer in Shropshire. Some of you saw Tessera here in May, when it was a web game. Since then it has become a free app on iPhone and Android, and grown a lot along the way. Tessera is a daily word puzzle where nothing is hidden. All the letters are on the board from the start, in the wrong places. You swap two tiles at a time until every row spells a word, and the only question is how few swaps it takes you. I built it in the gaps around a full-time job and a house move. Of the players with an account, 87% were still solving a week after their first puzzle, and 74% three months later. What's in it: • One puzzle a day, the same for everyone: Classic on 4x4 or Hard on 5x5 • Tessera Chain, a ladder of levels with stars and timed bonus rounds • Daily leaderboards and private leagues with friends • 20 themes, each free to try for one puzzle • English and Spanish • Free, with no ads unless you choose to watch one for coins 1,920 everyday words make 653,337 possible grids, enough for about 1,789 years of daily puzzles. I built it with Claude Code as a constant collaborator, and wrote up the whole process, from design to App Review to paid ads: https://www.pjcooper.design/blog... I'd love to hear what you think, and how many swaps today's puzzle took you.