Learn to recognize the clock Publisher: 景琦 孙 Genre: Education Released: 4 May, 2016 Size: 28.7 MB Price: $0.99 Click here to request a review of this app App Store Info Description 1. Recognize the clock by eliminating squares. 2. Use simple to complex patterns to quickly recognize the clock. What's New in Version 1.3 Increase stability Screenshots Screenshot 1 of 10