# GDS CATS vs IR Reader Config

The clearest difference is update cadence: IR Reader Config at every 6 weeks against GDS CATS's every 24 months. IR Reader Config also leads on iOS requirement (9.0 vs 15.0). 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.

GDS CATS ships an update every 24 months, IR Reader Config every 6 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GDS CATS | IR Reader Config |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 6 weeks** |
| Size | 1 MB | 74 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Stewart](https://appshunter.io/developer/1012982526) | [Inner Range Pty. Ltd.](https://appshunter.io/developer/562825337) |

## What reviewers say

### GDS CATS

[App page](https://appshunter.io/ios/app/gds-cats/id1317958523)

**Features:** macOS Compatibility

**In-app purchases:** none


### IR Reader Config

[App page](https://appshunter.io/ios/app/ir-reader-config/id1611294521)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GDS CATS free?

GDS CATS is free to download, with no in-app purchases.

### Is IR Reader Config free?

IR Reader Config is free to download, with no in-app purchases.

### Do GDS CATS or IR Reader Config have ads?

Neither GDS CATS nor IR Reader Config shows ads.

### Which is updated more often, GDS CATS or IR Reader Config?

GDS CATS ships an update every 24 months, and IR Reader Config every 6 weeks. Most recently, GDS CATS was updated on October 9, 2026 and IR Reader Config on October 7, 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.*