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

This list contains syllable frequency, listing each syllable, with Pinyin and Zhuyin, as well as a sample character. It’s not sorted in order of frequency, but the frequency data is there. Also, pl... Read more.

technology.chtsai.org

ChineseMe is the most integrated Mandarin course, designed for motivated learners who have decided to become fluent. It is an interactive textbook that adapts itself to your interests. The course i... Read more.

chinese-me.com

This is a fairly extensive phrasebook with some added extras. It has over 12,000 words, phrases and complete sentences in more than 250 categories. This app is meant for beginners, but works well f... Read more.

word-in-the-hand.com

A London-based school that takes their Mandarin courses to the next level - integrating technology (bespoke Phone Flashcards) and HSK test planning into their courses from Beginner, Intermediate to... Read more.

practicalmandarin.co.uk

From their website (if you have personal experience of their courses, please leave a comment): New Concept Mandarin specializes in teaching Mandarin Chinese (Putonghua) as a second language. Act... Read more.

newconceptmandarin.com

Hanbridge Mandarin provides campus-based courses, online classes, and intensive cultural immersion programs. I don't know anyone who has attended any of their classes personally, but they cover the... Read more.

hanbridgemandarin.com

Online Chinese flashcards that adapt to your learning, Chinese speaking practice using voice recognition, and a simple, fast Chinese-English dictionary. Read more.

fastchinese.org

This video is produced by Hutong School and explains the very basics of Chinese tones, suitable for the complete beginner or those that are thinking about learning Chinese and want to know a little... Read more.

youtube.com