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A2Calc

A2Calc

SFIC Calculator

9 ratings
15 reviews
🔧 Utilities
📊 Productivity
$6.99

Details

  • Released
  • Updated
  • January 6, 2013
  • March 12, 2026

Features

Developer

Farren Domenici
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About

This app assists locksmiths by automatically calculating pinning charts for A2 SFIC systems. It supports 6 or 7 pin systems and includes features like a randomize function, control finder, and project saving. Projects are encrypted and can be shared via AirPrint or email.

✓Automatic pinning chart calculation
✓Supports 6 or 7 pin systems
✓Randomize chart generation
✓Control Finder for lost control keys
✓Save up to 16 projects
✓Encrypted and passcode-protected projects
✓Share projects via AirPrint or email
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What's New in A2Calc

1.5.2

March 12, 2026

-Under the hood repairs

User reviews

Most RecentHighest RatedLowest Rated

App closes when trying save

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.
jccgcjccgc

Response from developer

Thank you for liking the app but please contact me about bugs directly rather than leaving a mediocre review. I have been recently made aware of this bug from another user and am currently working on a fix. If you can email me what type of iPhone you are using and version of iOS that would be helpful and appreciated.

No more annoying cut sheets

Who does math by hand anymore? This app saves you from having to ever fill out a bitting chart again. Quick and easy!
L0CK MaNL0CK MaN

Awesome app

This app pays for itself over and over and over. I’ve rekeyed 4 casinos and a airport using this handy app cuts my bitting generation times in half. The control finder is an added bonus in tight situations as well. Thanks Phil!
Master Bates010Master Bates010

Great tool

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

Great app

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!!
this igirl07this igirl07
See 10 more reviews

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FAQ

What is A2Calc used for?

A2Calc is a specialized calculator designed for locksmiths to automatically generate pinning charts for A2 Small Format Interchangeable Core (SFIC) systems. It simplifies the process of determining the correct pin combinations for various keying scenarios.

How many pin systems does A2Calc support?

A2Calc is programmed for both 6 and 7 pin systems. For systems requiring fewer pins, you can use a decimal input to effectively erase a chamber, offering flexibility in its application.

Can A2Calc help if a control key is lost?

Yes, A2Calc includes a 'Control Finder' feature. This bonus tool reverse-engineers a core to help determine the control key's bitting, which is invaluable when multiple cores need to be rekeyed and the original control key is missing.

How does A2Calc protect my work?

All projects saved within A2Calc are encrypted and protected with a passcode. This ensures the confidentiality and security of your sensitive locksmithing data.

What are the compatibility requirements for A2Calc?

A2Calc is compatible with iPhone and iPod touch devices running iOS 8.0 or later, and iPad devices running iOS 12.0 or later. It is designed for mobile locksmith professionals.

How often is A2Calc updated?

The latest version of A2Calc is 1.5.2, last updated on March 12, 2026. While the last update date is in the future, indicating potential future development, users can expect ongoing support and potential improvements.

What is the price of A2Calc?

A2Calc is a paid application, available for $6.99. This one-time purchase grants access to all its features for locksmiths working with A2 SFIC systems.

Does A2Calc have ads?

No, A2Calc does not contain advertisements. As a paid utility app, it provides an uninterrupted user experience focused on its specialized functions for locksmiths.