The limitations of the free plan are as follows.
- Ads are displayed
- You can create up to 5 ToDo lists and up to 5 note folders
- Only 26 of the 50 theme colors are available (24 are Premium-only)
- The data export feature (files for computers) is not available
- The ToDo and note widgets are not available (the calendar widgets are available)
That said, the app is designed to remain comfortable to use even on the free plan, so please consider subscribing only if you feel that you need the additional Premium Plan features. Thank you.