Fii TestOnly is a free note-taking app for Android developed by flyable. It features a unique hybrid model that combines handwriting and keyboard, giving users the flexibility to choose the input method that suits them best.

The app supports various input formats such as text, voice, photo, and video, making it easy to note everything. It also includes features such as a calendar, alarm, and to-do list, helping users stay organized and productive.

With an infinite canvas, text box, DIY templates, and real pen style, Fii TestOnly offers many incredible functions. It organizes notes by books, tags, bookmarks, and calendar, and also supports archive and trash boxes. Additionally, the app requires fewer permissions compared to similar applications, ensuring user privacy.

Overall, Fii TestOnly is a great choice for those looking for a versatile note-taking app on Android.