Android Legend Bullet-journal style app with device sync and amazing task support. There are issues with the Android UI, no Markdown support, and the app requires their cloud.
Android Effie A minimalist native writing app with support for Markdown, mind-mapping, oodles of fonts, and sync across devices. No Web app and not local-first.
Android RemNote A great tool for tracking your thoughts and learnings in bullet form with the ability to nest thoughts and tag them and create flashcards. Android UI is a bit jittery.
Android Supernotes Well-designed cosmetically and fast, supporting Markdown, linking of notes, inline images, and apps for every platform you need including Linux.
Android Bullet A fast and relatively inexpensive bullet journal app with Android, iOS, and Web apps that sync quickly. It has room for improvement but a good start.
Android Amplenote A daily journal with Jots (short notes) or detailed, linked notes using Markdown with embedded tasks that can be viewed in a calendar. Amazing!
Android Quillpad A fork of Quillnote, this one is also an open-source, free, fast note-taking app with support for Markdown, images, and Nextcloud sync!
Android Bundled Notes Markdown support and the ability to sync notes between devices with Kanban boards and reminders make this a top app except that its is "cloud" first.
Android Workflowy A powerful and freemium outliner that is not local-first but is very fast with apps for every platform you'd need, amazing filtering abilities, and you can get your notes out at any time.
Android Simplenote Really good if you're looking for an Open-Source, fast, multi-platform, note-taking app that supports Markdown, has bi-directional sync, linking of notes, and a very cool change history.
Android Notepad by Braden Farmer A really fast, free, no-frills and open-source text/Markdown note-taking app.
Android Bublup Bublup is fun to use, has a nice design, and has lots of options to share with friends and family. The free version gives quite a bit of functionality and for USD 2.99 a month, you can increase your storage
Android Drafting This app is incredible, launches really fast and you can start typing right away. It is local first, low-cost, supports Markdown and has a custom toolbar.
Android D Notes A great note-taking app with an incredible amount of functionality for free. A CAD 4.89 upgrade gets you cloud sync via Google Drive and more.
Android Material Notes An ad-free and basic note-taking app for quickly capturing text notes with a clean UI and a no-frills, super-fast user interface.
Android OneNote OneNote is fast, has many features, works on every platform, and synchronizes notes across all devices, for free. Export to PDF, work offline, format text, and link notes.
Android Noto Noto is a minimal, free, open-source, and fast note-taking app but it does not have any Markdown support. The UI is clean and it uses a nice font which cannot be changed.
Diary Diary by Bill Farmer Diary is another great open-source app by retiree Bill Farmer. It has a ton of functionality including Markdown support, advanced features like tables and text highlighting, and best of all it's fast and free!
Android Writeily Open-source, local-first Markdown note-taking app that is no longer being maintained unfortunately.
Android Notes by Bill Farmer and 1K subs! Notes is a fast, local-first, free, open-source note-taking app that supports Markdown!
Android Mind Notes Mind Notes is a #fail but could be one of the best note-taking apps if they fixed the bugs, implemented autocorrect, and removed annoying upgrade dialogs
Android MarkNote MarkNote is a local-first, open-source, Markdown app with a ton of functionality and all for free. You can back up and restore your files, synchronize them with OneDrive, and export them to PDF, HTML, or an image.
Android Leaf Note A great, fast, cheap, local-first, and customizable Android app that supports Markdown and sync via WebDAV.
Android Epsilon Notes Epsilon Notes is incredible, landing at the top of all of the apps that I've reviewed. It's well worth CAD 6.49, supports Markdown, and SD card access, local text files, and AES encryption
Android Note to Self A completely free, local first, ad-free, and fast note-taking app using chat-style messaging to yourself.