Tickmate allows you to track any daily occurrences. It is a is a 1-bit journal, meaning each day is either ticked or not. You can track anything from habits you wish to build or break to how often you wash your hair.
Use a "reversed" track for occurrences you don't want to happen, so they're automatically ticked unless you untick them.
You can use the "allow multiple" feature to be able to tick a single day multiple times.
With iCloud sync, all your data will be securely synced across all devices.
This app is free and open-source. Its source code can be viewed on GitHub through the App Support link.