# CrewAlert TOD vs HOLIS Control

The clearest difference is update cadence: HOLIS Control at weekly against CrewAlert TOD's fortnightly. 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.

CrewAlert TOD ships an update fortnightly, HOLIS Control weekly. The most recent releases landed on September 4, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | CrewAlert TOD | HOLIS Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 56 MB | 11 MB |
| Requires iOS | **15.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jeppesen Systems AB](https://appshunter.io/developer/391351392) | [CIM COMMUNICATION INFORMATION MANAGEME](https://appshunter.io/developer/523404080) |

## What reviewers say

### CrewAlert TOD

[App page](https://appshunter.io/ios/app/crewalert-tod/id1479542477)

**In-app purchases:** none


### HOLIS Control

[App page](https://appshunter.io/ios/app/holis-control/id1642072373)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CrewAlert TOD free?

CrewAlert TOD is free to download, with no in-app purchases.

### Is HOLIS Control free?

HOLIS Control is free to download, with no in-app purchases.

### Do CrewAlert TOD or HOLIS Control have ads?

Neither CrewAlert TOD nor HOLIS Control shows ads.

### Which is updated more often, CrewAlert TOD or HOLIS Control?

CrewAlert TOD ships an update fortnightly, and HOLIS Control weekly. Most recently, CrewAlert TOD was updated on September 4, 2026 and HOLIS Control on May 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.*