QS3D Quality Training
If you are involved in or interested in developing knowledge of Quality tools, this is the app you need. The simulations are fantastic and supported by excellent training info, both of which are supported by well thought out questions. I am a fan of this app and I highly recommend it :)
Couldn’t stop playing till my battery went out
This is supreme product. I started with intention to work on it for few days but it was keeping me engaged so I just spent 7 hours straight ! And then the phone battery was out. Recommend for quality tools and techniques and deep understanding.