Balls & Boxes - The ultimate memory and
Review and Ratings:
Concept/Innovative : 0.7 - As name says it is indeed a concentration test. This is one of the best brain teaser we found on market till now. Brain teasing itself is a concept of the puzzle.
Usability: 1.0 - Very user friendly. Tutorials are sufficient to help users.
Functionality/Correctness : 1.0 - No issues found.
User Interface : 0.8 - User interface is very good. Little scope to improve. Simple and effective.
Performance : 0.9 - Near to the best. Optimized well for all devices.