Handwritten Notes is a free Android app developed by cyd. Its main purpose is to allow users to easily and conveniently write text and handwriting notes on post-its or pictures.

One of the features of Handwritten Notes is the ability to save the created memo as a picture file or send it through Kakaotalk. This can be done by clicking and holding the memo on the first screen. Additionally, users can display the note they've created as a widget on their home screen.

Another useful feature is the ability to set an alarm on the note. Users can do this by clicking and holding the memo on the first screen and choosing Notification Settings.

Handwritten Notes also allows users to add a handwritten note on an enlarged post-it or a picture to add small letters or drawings easily. The app features smooth writing as if you're drawing on paper with a brush. Users can adjust color, transparency, and line thickness to customize their notes.

To use Handwritten Notes, the app requires access to pictures/media/file and memory storage. This is necessary to create new notes, upload pictures, backup, and restore notes. Overall, Handwritten Notes is a convenient and user-friendly app for those who prefer writing notes by hand.