# Engineering Inc. vs ACEC Arizona

The clearest difference is update cadence: ACEC Arizona at every 2 weeks against Engineering Inc.'s every 32 months. Engineering Inc.'s advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Engineering Inc. ships an update every 32 months, ACEC Arizona every 2 weeks. The most recent releases landed on May 16, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Engineering Inc. | ACEC Arizona |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 2 weeks** |
| Size | 53 MB | 394 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ACEC](https://appshunter.io/developer/879147908) | [American Council of Engineering Companies of Arizona](https://appshunter.io/developer/1657112703) |

## What reviewers say

### Engineering Inc.

[App page](https://appshunter.io/ios/app/engineering-inc/id879147905)

**Features:** macOS Compatibility

**In-app purchases:** none


### ACEC Arizona

[App page](https://appshunter.io/ios/app/acec-arizona/id6444822055)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Engineering Inc. free?

Engineering Inc. is free to download, with no in-app purchases.

### Is ACEC Arizona free?

ACEC Arizona is free to download, with no in-app purchases.

### Do Engineering Inc. or ACEC Arizona have ads?

Neither Engineering Inc. nor ACEC Arizona shows ads.

### Which is updated more often, Engineering Inc. or ACEC Arizona?

Engineering Inc. ships an update every 32 months, and ACEC Arizona every 2 weeks. Most recently, Engineering Inc. was updated on May 16, 2026 and ACEC Arizona on September 17, 2026.

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