ChinesePod is one of the most comprehensive resources out there when it comes to listening. I started out with ChinesePod a long time ago and found it quite useful, especially from upper-intermedia... Read more.

chinesepod.com

Finally, Duolingo added a En->ZH course. As Duolingo is the most popular gamification learning app, the learning experience is relatively streamlined and tested. The monetarization aspect leads to ... Read more.

en.duolingo.com

Pro version gives you: ★ Chinese handwriting recognition built in* ★ Mandarin audio - over 2,000 audio files of a real native Chinese speaker ★ Homescreen Widgets - flip through your favorite wo... Read more.

play.google.com

This is the traditional Pinyin chart with audio, with the added benefit that you can download it and use it offline. Contains separate mp3 files. Female speaker with clear pronunciation. Edit: Y... Read more.

chinesepod.com

This website offers a large number of previous HSK and YCT Chinese proficiency tests, sorted by year and level. This is excellent for test preparation and/or benchmarking. Read more.

chinesetest.cn

Pandaist is a graded reader app with several hundred articles, including both news articles as well as fictional stories. Every article includes sentence translations, grammar rules and a popup cha... Read more.

pandaist.com

Mondly is a mobile app very similar to Duolingo (which does not support Chinese). Pro: * more or less straight course to take, no distractions * It has several languages besides Chinese. Th... Read more.

mondlylanguages.com

Basic HSK grammar from beginner to advanced level. The best part is that in each lesson end, there is a quiz to test if you have really mastered the grammar. Read more.

hskcourse.com

Description provided by OptiLingo (I have not yet tried this service myself): "OptiLingo is a hands-free language learning app that prioritizes learning Chinese through speaking rather than typi... Read more.

optilingo.com