The developer of a game with the same name as smash hit Wordle has donated money made from his app to charity, after people mistakenly downloaded it.
Steve Cravotta said he had seen more than 200,000 downloads of his Wordle game in a week, after its namesake went viral.
That money will go to an educational charity - the amount was not disclosed.
The app-based Wordle asks players to guess anagrams of words within a time limit - and they can pay to unlock new levels.
It has been on the App Store for five years but failed to really take off and after a few months and 100,000 downloads, Mr Cravotta stopped updating or promoting it.
But in the past three months, the web-based Wordle, a different game with the same name, has gone from having just a handful of players to millions.
There are clues along the way, with squares changing colour if a correct letter or its correct place in the word is guessed.
Players can share how quickly they solved the puzzle by posting their grid on social media - but in a way that does not spoil the answer for those still playing.