# LFIC — LFIC Calculator > Automated pinning chart calculator for multiple lock systems. (iPhone/iPad app by Farren Domenici.) - Source: https://appshunter.io/ios/app/lfic/id595870826 (this page in markdown: same URL + `.md`) - Developer: [Farren Domenici](https://appshunter.io/developer/583666476) - Category: Utilities, Productivity - Price: $5.99 - Rating: 3.40/5 from 5 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 2 MB - Languages: American English - Released: 2013-02-05 - Data updated: 2026-08-08 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/lfic/id595870826/reviews.md ## What is LFIC? LFIC: Large Format Interchangeable Core Calculator Automatically calculates the pinning charts for Corbin-Russwin (System 70 & Non-System 70), Sargent (Standard and Degree), Medeco 32 Series, and Assa (Sargent & Yale / Corbin-Russwin). Obeys required rules set by Corbin-Russwin, Sargent, Medeco, and Assa respectively. Randomize function will generate completely random charts each time it is triggered while obeying any applicable MACS rules. Easy to use interface: Every text field "autotabs" so there is no need to tap on every box. Freeze inputs and functions by tapping the Lock/Unlock toggle to prevent unwanted changes. MACS chart provided in information page for Medeco. AirPrint or Email systems. Compatibility: iPhone / iPod touch on iOS 8.0 or later and iPad on iOS 12.0 or later. Found a bug? Something not working? Have a suggestion? Feel free to contact me via email: farren@phoxlocks.com ## Key features - Automated pinning chart calculation - Supports Corbin-Russwin, Sargent, Medeco, Assa - Randomize chart generation - Auto-tabbing interface - Lock/Unlock input function - AirPrint and email support ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/lfic/id595870826/reviews.md ### 1/5 — Corbin LFIC *2025-10-06* I need to do a L4 Corbin LFIC with 4 change keys can you add functionality for multiple change keys in the app ? ### 1/5 — Does not work in all situations *2015-10-13* Does not work if your master key cuts are deeper than your control key cuts, returns negative pin numbers **Developer response:** If you're referring to Corbin Russwin (both sys70 and non-sys70) you will indeed return negative pin numbers any time the control bitting is less than a master or change bitting. This is how the these systems were designed. If you would like more information or need any help feel free to contact me. ### 5/5 — A "must have" for Facility Locksmiths! *2013-06-20* Phillip D., you keep making incredibly useful apps in for the locksmith community. If you have a Sargent or Corbin large format system then you must get this. I encourage everyone I train on buying this app. **Developer response:** So glad you like! Thank you for your kind words! ## Frequently asked questions about LFIC ### What lock systems does LFIC support? LFIC supports Corbin-Russwin (System 70 & Non-System 70), Sargent (Standard and Degree), Medeco 32 Series, and Assa (Sargent & Yale / Corbin-Russwin) lock systems. ### How much does LFIC cost? LFIC is a paid application, available for a one-time purchase of $5.99. ### Does LFIC have ads? No, LFIC does not contain advertisements. It is a paid application without any ad interruptions. ### What devices is LFIC compatible with? LFIC is compatible with iPhone and iPod touch devices running iOS 8.0 or later, and iPads running iOS 12.0 or later. ### How often is LFIC updated? The latest version of LFIC is 1.6.2, last updated on March 17, 2026. Updates typically address bugs and introduce new features or compatibility improvements. ### Can LFIC generate random pinning charts? Yes, LFIC features a randomization function that generates completely random charts while adhering to any applicable MACS rules. ### What is the age rating for LFIC? LFIC has an age rating of 4+, making it suitable for a wide range of users. ### How can I report a bug or suggest a feature for LFIC? You can contact the developer directly via email at farren@phoxlocks.com to report bugs, suggest features, or provide feedback on LFIC. ## Version history (last 5 releases) ### 1.6.2 — 2026-03-17 -Under the hood repairs ### 1.6.1 — 2022-03-03 ---Note: This update requires a minimum version of iOS 12.0--- -Under the hood service to maintain a healthy running app ### 1.6 — 2021-01-13 -Added Assa Sargent and Yale / Corbin-Russwin Systems -Printing and Emailing now display the subsystem (when applicable) ### 1.5 — 2020-05-19 -Added Sargent Degree System ### 1.4 — 2020-05-07 -Under the hood service to maintain a healthy running app ## Apps similar to LFIC | App | Rating | Price | Category | | --- | --- | --- | --- | | [UU: UUID Generator](https://appshunter.io/ios/app/uu-uuid-generator/id1614731646) | 5.0 (2) | $0.99 | Utilities | | [Triton PLUS™](https://appshunter.io/ios/app/triton-plus/id6448079864) | 5.0 (5) | Free | Utilities | | [Black Widow Key Machine V2](https://appshunter.io/ios/app/black-widow-key-machine-v2/id1600176672) | 3.0 (2) | Free | Utilities | | [MasterElec - NEC Code Guide](https://appshunter.io/ios/app/masterelec-nec-code-guide/id6760912109) | — | Free | Utilities | | [Black Widow Key Machine](https://appshunter.io/ios/app/black-widow-key-machine/id1577877042) | 4.5 (2) | Free | Utilities | | [GlobalTalk A.I.](https://appshunter.io/ios/app/globaltalk-ai/id6739480138) | — | Free | Utilities | ## More apps by Farren Domenici - [ServiceCalc](https://appshunter.io/ios/app/servicecalc/id583666473) - [A2Calc](https://appshunter.io/ios/app/a2calc/id589583757) - [Master It](https://appshunter.io/ios/app/master-it/id645920825) - [Biaxial](https://appshunter.io/ios/app/biaxial/id658649763) - [Dialnostics](https://appshunter.io/ios/app/dialnostics/id662583874) All apps by Farren Domenici: https://appshunter.io/developer/583666476 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-08.*