Accurate and easy

This app is easy to understand and use. It has also proven to be accurate to distances of 1,000 yards. I live in the Rocky Mountain region where my shooting conditions often change 6,000 feet or more with wide temperature swings. When ballistic and atmospheric information is entered correctly this app provides me with the readings which are normally within 1/4 MOA of Applied Ballistics which is considerably more expensive. Downsides, after updating to IOS 8 (IPAD) velocity calibration still does not work, improvements and updates are infrequent, and the developer is slow to respond to requests for information. Developers for the two other apps I use, typically respond within 24 hours.

De Ole Wharf Rat about Shooter (Ballistic Calculator)