iPhone/iPad: We love Workflowy, the text-based to-do and organisational tool. Its iPhone and iPad apps launched not too long ago, and now the mobile apps have been updated with offline note-taking and editing.
Workflowy is one of our favourite underhyped web apps. If you're looking for a simple to-do list organiser or text tool that makes it easy to make lists or jot down notes, it's worth a look. The iPhone and iPad apps give you access to your Workflowy notes on the go, and now that they have offline access, you can use the apps in aeroplane mode or anywhere else you may not have a Wi-Fi or mobile data connection without worry that your changes and updates will be lost when you reconnect. You can even launch the app while offline and access your notes to make changes.
Offline access is in the latest version of Workflowy for iOS. To grab it, just update the app or grab it for free from the iTunes App Store (or hit the link below). Android users can try out Workflowy Agent, an unofficial Workflowy client, as an alternative.
WorkFlowy (free) [iTunes App Store]