Wenlin software makes learning Chinese easier and more interesting, for begining students, life-long speakers, and scholars alike. It combines a comprehensive Chinese dictionary, a Unicode text edi... Read more.

wenlin.com

Recommended and introduced by Trevor [here](http://www.hackingchinese.com/extensive-listening-challenge-october-2014-wrapping-up/#comment-646686). Each book (one for each level of the new HSK ex... Read more.

amazon.com

This is the best overview of spaced repetition research I have seen online or offline. It's thorough, well-argued and probably covers more than you were looking for. It's not specifically about Chi... Read more.

gwern.net

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

HSK Course is an online platform for HSK preparation. It aims to help you not only successfully pass the exam, but gain confidence in using Chinese language. It mainly has 3 parts: Grammar Les... Read more.

hskcourse.com

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

TutorMandarin is an online Chinese tutoring software and service. Students take 1-on-1 classes with professional Mandarin tutors on PC, Android, or iOS. Full courses from Beginner to Advanced, Spok... Read more.

tutormandarin.net

Floomli is a free platform for exchange languages during video call, voice call or text conversation. By joining Floomli you become a part of a global language practicing network . The main goal of... Read more.

floomli.com

Idiomatic Forest helps learners activate their language skills by discussing and describing pictures, getting feedback from native speakers in return for helping others learn your language. Read more.

idiomaticforest.com