A3Calc vs The Polymer App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A3Calc
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A3 Small Format Interchangeable Core Calculator (sister app of A2Calc and A4Calc) ---Programmed by a Locksmith, for Locksmiths--- Automatically calculates the pinning chart for A3 SFIC. Built for 6 or 7 pin systems, however, less can be achieved by using a decimal to erase a chamber. Minimum of a control and master key are required to make a chart. Additional change key available for all devices; 2 change keys available for 16:9 screen devices. Randomize function will generate completely random charts each time it is triggered. "Lock/Unlock" toggle disables/enables all inputs and functions to prevent unwanted/lost changes. Control Finder is an added bonus by reverse engineering a core to determine the control key's bitting. This is perfect when needing to remove multiple cores in a building when the control key has been lost. There are two methods for achieving the control key: 1. using the master, control, and bottom pins, or 2. using only the top/driver pins. Up to 16 different projects can be saved at any one given time. All projects are encrypted and protected with a passcode when stored on your device. All projects can be exported via AirPrint and Email. 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
The Polymer App
This mobile application provides factory managers with a streamlined way to monitor work in progress and manage inventory directly from their iOS devices. It offers a user-friendly interface for efficient production tracking.
- Track work in progress
- Manage inventory
- Mobile tracking
- Easy to use interface
- iOS compatible
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Polymer's iOS app allows factories to track work in progress and inventory, all in a convenient and easy to use mobile app.
Screenshots
Verdict
The clearest difference is price: The Polymer App at Free against A3Calc's $1.99. The Polymer App also leads on update cadence (every 3 weeks vs every 18 months). A3Calc's advantage is iOS requirement (12.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
The Polymer App is free to download; A3Calc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
A3Calc ships an update every 18 months, The Polymer App every 3 weeks. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.
| Parameter | A3Calc | The Polymer App |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 18 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 2 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Farren Domenici | Polymerize, Inc. |
In-app purchases
A3Calc
No in-app purchases
The Polymer App
No in-app purchases
