NotallyX

NotallyX, published under the Crustack account, is a minimalistic note-taking app for Android that extends the original Notally app. It lets you write rich text notes with bold, italics, monospace and strike-through, and create task lists with subtasks and automatic sorting of checked items to the end.

Further features include reminders with notifications, attachments of pictures, PDFs and other files, sorting by title or date, colors, pins and labels, clickable links for phone numbers, emails and URLs, undo and redo, a home screen widget, locking by biometrics or PIN, configurable auto-backups, quick audio notes and list or grid views. Notes can be imported from Evernote, Google Keep and Quillpad.

The developer notes that the app was temporarily removed from the Google Play Store after users reported data loss, and strongly advises setting up automatic backups, ideally also backup on save. It is written in Kotlin, licensed under GPL-3.0, supports Android Lollipop and up, and has occasional beta releases.