# PAHCCalculator vs KAI Red

The clearest difference is update cadence: KAI Red at monthly against PAHCCalculator's every 25 months. 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.

PAHCCalculator ships an update every 25 months, KAI Red monthly. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | PAHCCalculator | KAI Red |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Monthly** |
| Size | 99 MB | 91 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Phibro Animal Health Corporation](https://appshunter.io/developer/1396490271) | [H&N International GmbH](https://appshunter.io/developer/1341615702) |

## What reviewers say

### PAHCCalculator

[App page](https://appshunter.io/ios/app/pahccalculator/id1562974261)

**Features:** macOS Compatibility

**In-app purchases:** none


### KAI Red

[App page](https://appshunter.io/ios/app/kai-red/id6443526849)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PAHCCalculator free?

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

### Is KAI Red free?

KAI Red is free to download, with no in-app purchases.

### Do PAHCCalculator or KAI Red have ads?

Neither PAHCCalculator nor KAI Red shows ads.

### Which is updated more often, PAHCCalculator or KAI Red?

PAHCCalculator ships an update every 25 months, and KAI Red monthly. Most recently, PAHCCalculator was updated on October 2, 2026 and KAI Red on October 1, 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.*