Apps by YMAA Publication Center, Inc.
Chin Na In Depth app icon

Health & Fitness

Chin Na In Depth

YMAA Publication Center, Inc.

Free download 5.00 · 1 storefront · 1 rating In-app purchases
Open on Apple

About this app

$19.99 IAP for each Chin Na lesson / Three complete courses. • Stream or download Chin Na video lessons by Dr. Yang. • Chin Na means “Seize Control” and is the origin of grappling arts. Chin Na grappling is a way to temporarily control an opponent so you may end a fight, defend yourself, or win in a sparring situation. Courses 1 – 4 include 34 finger, hand, and joint-locking techniques taught with attention to detail by Dr. Yang, Jwing-Ming. Courses 5 – 8 include detailed lessons for controlling and incapacitating your opponent with 30 finger, hand, and joint-locking techniques. Courses 9 – 12 go even deeper with 43 finger, hand, and joint-locking Chin Na techniques, including Leg Wrestling and Chin Na for defense and counter-attacking against a Chin Na hold. Each course also available on DVD (reg $59.95). Thank you for downloading our app! We are striving to make the best possible video apps available. Sincerely, The team at YMAA Publication Center, Inc. (Yang’s Martial Arts Association) CONTACT: apps@ymaa.com VISIT: www.YMAA.com WATCH: www.YouTube.com/ymaa

Latest release

What’s New

Version 1.0.1 Jan 16, 2023

App updated to the latest operating system, bugs fixed, crashes resolved. Please leave 5-star review to help launch this new app. Free sample videos. This app contains the entire video contents for a fraction of the price, with a single purchase per program.  We ask for your optional email to contact you about app improvements and other YMAA.com news. You can click past the email request. This app is made directly from the author and publisher. Thanks for your support!

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
1 ratings
1 Sep 5, 2026 · 1 ratings Sep 5, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free 0×
Price history
Current Free
Free Sep 5, 2026 · Free Sep 5, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Sep 5, 2026 · 4:06 PM Free

Screenshots

Chin Na In Depth iPhone screenshotChin Na In Depth iPhone screenshot Chin Na In Depth iPad screenshotChin Na In Depth iPad screenshot