This app is objectively bad. I've been using it for years and even free features have been paywalled behind a premium membership. The app loves to spam adverts for this premium membership whenever it can. There is a glitch in the writing tool where you can't save your progress because the UI stops responding. If you're going to download this app, I would strongly recommend downloading an apk of a version previous to 2017. Yet another app ruined by money hungry devs.