Strelok. Ballistic Calculator (free) https://play.google.com/store/apps/details?id=com.borisov.strelok&hl=en Shooter. Ballistic Calculator £6:42 https://play.google.com/store/apps/details?id=net.kndy.shooterfull&hl=en shot timer/counters (free) Shot Timer - Android Shot Timer - Android IPSC Shot Timer - Android < this is a good one. Shot timer PRO trial - Android shot timer/counters pay. Shot Timer PRO Full - Android I'v only just got a new phone to play with these, having a bit of fun comparing them, any other shooting apps people are using and recommend??