Penflip - Typewrite is a real-time collaborative writing environment with Markdown support, versioning and Dropbox syncing. Alternatives to Penflip for Web, Windows, Mac, Linux, iPhone and more.
Fuse - Fuse is a UX tool suite for mobile app designers and developers.
Cleartext - A text editor that allows only the 1,000 most common words
Dropsource - Mobile development platform for building native iOS & Android apps
Quill - Powerful, API-driven rich text editor
Siberian CMS - Siberian is an Open-Source and Free App Maker. Unlimited Push Notifications. Unlimited features. Fully Customizable. Download it and build your own app now!