Take a look at the latest FREE variation of this App "Kickboxing Combos Trainer". Includes more features and can run natively without Adobe Air. Available at : http://bit.ly/2RtAu64
An app made for Boxers to act as a virtual trainer while shadow boxing. Sets a Timer to 3 minutes and calls out randomly 8 boxing punches (Jab, Cross, Hook, Uppercut). Not an instructional app but a training tool to help intermediate level boxers.
Get the Pro version of this app here : https://play.google.com/store/apps/details?id=air.KickboxingCombos
The Pro Version includes Kickboxing Combos. Along with the ability to control the pace of the combos.