# ACM CACM HD vs Computing Technologies

The clearest difference is in-app purchases: Computing Technologies at none against ACM CACM HD's 1. Computing Technologies also leads on device support (3 vs 1). ACM CACM HD's advantage is update cadence (every 3 months vs every 12 months) and iOS requirement (6.0 vs 15.5). On price and ads there is nothing between them.

Both are free to download. ACM CACM HD sells 1 in-app purchase, starting at $124.99 per year. Computing Technologies asks for nothing beyond the download.

ACM CACM HD ships an update every 3 months, Computing Technologies every 12 months. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | ACM CACM HD | Computing Technologies |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/acm-cacm-hd/id434008197/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 10.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 12 months |
| Monetization | Subscription | — |
| Size | 27 MB | 7 MB |
| Requires iOS | **6.0** | 15.5 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Association for Computing Machinery](https://appshunter.io/developer/405041865) | [Computing Technologies, Inc.](https://appshunter.io/developer/1785688041) |

## What reviewers say

### ACM CACM HD

[App page](https://appshunter.io/ios/app/acm-cacm-hd/id434008197)

Access content from the Communications of the ACM magazine and website, including current and archived issues. Read, save, and share articles on your device.

**Highlights:** Read current and archived Communications of the ACM issues, Access content from the CACM website, Save articles for later, Share articles with others, Utilizes multitouch interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CACM 1-Year | $124.99 | per year |


### Computing Technologies

[App page](https://appshunter.io/ios/app/computing-technologies/id6739503462)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ACM CACM HD free?

ACM CACM HD is free to download, with in-app purchases available.

### Is Computing Technologies free?

Computing Technologies is free to download, with no in-app purchases.

### Do ACM CACM HD or Computing Technologies have ads?

Neither ACM CACM HD nor Computing Technologies shows ads.

### Which is updated more often, ACM CACM HD or Computing Technologies?

ACM CACM HD ships an update every 3 months, and Computing Technologies every 12 months. Most recently, ACM CACM HD was updated on September 22, 2026 and Computing Technologies on September 14, 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.*