The best alternatives to Writeathon are ruff, prosepen, and (blank). If these 3 options don't work for you, we've listed a few more alternatives below.
ruff is your pocket-sized best friend that aims to make writing on the go fun and sharing it fast & easy. It's a single sheet of text with your progress automatically saved and restored between sessions — no file management to worry about here! You can set aside (aka stash) text to come back to later via a left swipe. Or you can pass it on (aka share) via the FAB.
Prosepen is an all in one site for creative writers and readers. It featues a beautiful text editor and several social media features. Grow your writing and grow your following.
This is Textylic: The perfect note-taking app. It supports various formatting options including bold, italic, underline, code style, and strikethrough. You can customize the app by changing the theme, too!
Prime Draft takes the writing process to heart: keeping you going forward until the first draft is done and leaving the editing to when the time is right. Gain insight into not just how many words you have written, but also how long you spent writing.