You can find the Bomb App in the google app store under ‘Random timer – tick tock bomb’.
This bomb app is basically a random timer and I use it to review vocab, internalize new vocab or practice pronunciation. You can use it in games like ‘Bomb’ and ‘Scattergories’.
Kids love it, but sometimes a kid is scared of the noise, so they participate from a distance and I pass the card for them (and lose an arm :)).