iphone ballistic app

I use one called Ballistic AE. Has all the bullets I use (Bergers) and uses the JBM engine.

Here's the one I wrote: www.mildotballistics.com

I've used this one for the last 2 years at Boomershoot with good results:

http://itunes.apple.com/app/ballistic/id300045171?mt=8

there are quite a few out there as you've already seen...

I use iStrelok as it's a fairly good free ballistic calculator.

Verizon has at least one too. Search for "exterior ballistics".

I use BulletFlight by Knight's Armament. The pro version.

Do you have one for Android?

Dave, Google Play has Strelok and Lapua Ballistic Calculator, among others. The Amazon Appstore has Hunter Joe: Ballistics and Shooter.