A free app for Android, by ICOMON.
The new version of the app is much more comprehensive and much more intuitive. Now, you can easily see all the data you have recorded, including your activity, nutrition, and weight. Also, it is much easier to view and analyze your data.
The app supports multiple devices, so you can use it on multiple Android phones or tablets. You can also use it on the web.
In addition, you can use the app to set reminders for things you need to do, like eat a specific meal or take a medication. The reminders will remind you at the right time, so you won't forget.