- This one is huge - the biggest update since Mondly launched 3 years ago *** Thank you for all your support to all 20 million of you *** Your constant feedback and attention was paramount to making Mondly one of the best language learning apps in the world and as Bloomberg recently named it “the most fulsome app-learning experience”. *** The Monthly Challenge *** *** A Whole New design *** If you love the new Mondly, please rate us so more people can join us. Thank you!