The new version of ASTEROID IMPACT is available at:
https://play.google.com/store/apps/details?id=com.lucma.soft.asteroidimpactv2
or search Asteroid Impact 2

ASTEROID IMPACT an easy-to-use app, will estimate if the asteroid hit the Earth, asteroid energy, mass, break-up altitude and frequency, asteroid energy, velocity and diameter near surface and crater type, diameter and depth.

It simple and easy to use. Just enter needed data and get results.
# Open app;
# Press Calculate Impact;
# Enter needed parameters and press Calculate;
# View results.