A2Calc

Nice app except for saving pin settings. When it ask to change password app closes and does not save new password. App also closes when trying to input the default password.

Who does math by hand anymore? This app saves you from having to ever fill out a bitting chart again. Quick and easy!

I have about all of Phil's apps they are great time savers, I also enjoy the option to email my results.

Great app, it is very well thought out. It's interface/layout/GUI whatever you call it in an app is intuitive and attractive. Works very well, I do not do the math for A2 systems often enough to be fast at it and this app is great in the field. Still the best!!

I don't know why it took me so long to think of searching the App Store for locksmith tools, but I'm glad I finally did. This app is fast, effective, and full-featured. I used to do all my SFIC calculations in a web interface tool, which was clunky, and ineffective when no internet was available. This not only works offline, but can do so much more, like calculate an unknown control key easily from the pin stacks in a core. It's easy to use for the basics and advanced features alike. This developer's other apps looks equally as useful. I taught myself long ago to do this stuff in my head, but my brain is fallible and slow, and sometimes just too tired to think. I'm looking forward to much increased efficiency when I'm working in the field.

Love it!

I teach the Locksmithing trade for a living to facilities across the country and I promote this app. It's simple to use and effective. I can't wait for the A4calc.

Cool

Saves our company hours! We knock out the cylinders in an instant. And just transfer to paper once done! Amazing!!

Can't complain, calculates in an instant. Save and email are great. Plus control finder will definitely come in handy when needed.