It’s basically Ribbit from Puzzmo, which is fine because reimplementations let you experiment with different gameplay.

https://www.puzzmo.com

the score should include how many bonus words you found (out of how many there were in total) and instead of time it should count how many tries you made because technically you could brute force this and try all combinations. counting each try would eliminate that (for anyone trying to get a high score)

I like that it also handles words that aren't planned in. You get a nice "bonus word" popout.

Fun! I like how the puzzle naturally gets easier as you solve it. How do you decide which words to include?

https://zanagrams.com/puzzles/5.json

Cool game. Snus isn't in the word list btw

Found six bonus words.

Interesting game! Is this an original idea? Is there plan to add "endless" number of zanagrams?

There are a couple of games like this on Android I play:

https://apt.izzysoft.de/fdroid/index/apk/com.vayunmathur.gam...

https://github.com/plhosk/wordtracer

They're both on FDroid