Wunderlist, our favourite to-do app, has just announcedit has reached 5.3 million users and also the debut of new real-time comments for its Pro users; free users also get to trial the new feature:

With the release of Comments we are also releasing a Wunderlist Pro trial for everyone! From today on, you all get the chance to give Comments, Files, and Assigning a try for free before making the final decision to get Wunderlist Pro! You can start by adding 10 Comments, 3 Files, and Assigning 3 tasks. Once you’ve hit your quota, you’ll be limited to just 1 of each per day. If you find yourself needing more, you can unlock unlimited use of all these Wunderlist Pro features for just $4.99 a month.

The video below demos the new feature:

Click here to download Wunderlist–it’s free. What’s your favourite to-do app?