And the premium version of this app lets you connect to Dropbox or Google Drive to attach related files to any task, to color-code to-dos, and to create subtasks. Remember the Milk (Opens in a new tab) offers integration with calendar and productivity services such as Evernote.

There's a desktop version of this service, and it automatically syncs with the apps. This app lets you create recurring to-dos, which is useful if you want a weekly reminder to carry out a task you need to do regularly. You can take things further by giving the to-do a priority status, adding a due date, or setting up a reminder that can be delivered via email, text, IM, Twitter, and mobile notifications. It's very easy to create to-do actions on this app, just typing 'Remember the milk,' for instance, as a one-line to-do list entry. Since then, millions of users around the world have signed up and rely on the app as a to-do list tool.

Remember the Milk (Opens in a new tab) is practically a vintage iPhone app, originally developed way back in 2004. You can ask Siri to create a new note in Bear, and even start dictating what you'd like the note to say - handy if you remember something to add to your to-do list when you're out and about. It also integrates brilliantly with Siri. Another thing we love about Bear is that you can use your iPhone's Spotlight search to look for words and phrases within your Bear notes. In the middle is a tidy, scrollable icon menu that offers one-touch formatting options for text style, bulleting, link making, inserting images, adding attachments, and creating those all-important check boxes. Design-wise, you have a blank screen at the top and your keyboard view at the bottom.

Free todo list