One of my favorite apps is Water Me, allowing me to track my daily water intake with a glass that “fills up” as I go through the day. Available for Android and iOS.

This is what we refer to as a “standalone” app since it does not store any information in the cloud or have a need for data connectivity. The settings as well as the users water consumption are all saved locally on the device.
The user can customize the quick add buttons ( the defaults are 8, 12, 16, 16.9) as well as determine if they would like to receive reminders throughout the day.
Technology used to build this:
- Angular 10
- Ionic 5
- Local Notifications plugin
- Bitrise for continuous integration and deployment