I didn’t see a link to the App Store. It looks like this is it.

https://apps.apple.com/us/app/unlimited-grid-habit-tracker/i...

Title: Unlimited GridHabitTracker

(Otherwise please use the original title, unless it is misleading or linkbait; don't editorialize.) https://news.ycombinator.com/newsguidelines.html

Play store link: https://play.google.com/store/apps/details?id=com.mustapollo...