Simplenote - The simplest way to keep notes. Light, clean, and free. Simplenote is now available for iOS, Android, Mac, and the web.

Keeeb - Keeeb unleashes knowledge that the corporate enterprise didn't know it had. We connect existing information islands while optimizing the discovery process with a novel workflow, and automate knowledge discovery through artificial intelligence.

Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.

Getodo - colorful lightweight multi-level to-do list on Android, iOS, web.

Coastline - Simple minimalist text editor. Create, open, edit and save plain text files.

LinkBoard - LinkBoard is a quick and easy way to save and share links. LinkBoard lets you: