# Kitten's Calc vs PrefixCalc

Kitten's Calc and PrefixCalc are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Kitten's Calc | PrefixCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 44 months | — |
| Size | 31 MB | 28 MB |
| Requires iOS | **11.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yoji Munakata](https://appshunter.io/developer/1228576175) | [YONAGARE LAB](https://appshunter.io/developer/1810986554) |

## What reviewers say

### Kitten's Calc

[App page](https://appshunter.io/ios/app/kittens-calc/id1436394420)

**Features:** macOS Compatibility

**In-app purchases:** none


### PrefixCalc

[App page](https://appshunter.io/ios/app/prefixcalc/id6748650037)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kitten's Calc free?

Kitten's Calc is free to download, with no in-app purchases.

### Is PrefixCalc free?

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

### Do Kitten's Calc or PrefixCalc have ads?

Neither Kitten's Calc nor PrefixCalc shows ads.

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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.*