# A4Calc vs JMA America

The clearest difference is price: JMA America at Free against A4Calc's $4.99. JMA America also leads on update cadence (every 9 days vs every 8 months). A4Calc's advantage is iOS requirement (12.0 vs 26.5). On ads, in-app purchases and device support there is nothing between them.

JMA America is free to download; A4Calc costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

A4Calc ships an update every 8 months, JMA America every 9 days. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | A4Calc | JMA America |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/jma-america/id1464552449/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 2 MB | 10 MB |
| Requires iOS | **12.0** | 26.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Farren Domenici](https://appshunter.io/developer/583666476) | [Eduardo Romero](https://appshunter.io/developer/1462060217) |

## What reviewers say

### A4Calc

[App page](https://appshunter.io/ios/app/a4calc/id734140182)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### JMA America

[App page](https://appshunter.io/ios/app/jma-america/id1464552449)

Easily find locksmiths in your area and identify the keys you need. Access a catalog of competitor key codes and download it for offline use. Connect with locksmiths via phone or email.

**Highlights:** Find local locksmiths, Identify key codes, Competitor key reference list, Offline key catalog download, Contact locksmiths by phone/email

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A4Calc free?

A4Calc costs $4.99, with no in-app purchases.

### Is JMA America free?

JMA America is free to download, with no in-app purchases.

### Do A4Calc or JMA America have ads?

Neither A4Calc nor JMA America shows ads.

### Which is updated more often, A4Calc or JMA America?

A4Calc ships an update every 8 months, and JMA America every 9 days. Most recently, A4Calc was updated on October 26, 2026 and JMA America on October 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*