# WoofCalc vs Usagi Calc

The clearest difference is in-app purchases: Usagi Calc at none against WoofCalc's 1. Usagi Calc also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.6). On price and device support there is nothing between them.

Both are free to download. WoofCalc sells 1 one-off in-app purchase. Usagi Calc asks for nothing beyond the download.

## The numbers

| Metric | WoofCalc | Usagi Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 54 MB | 21 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TATSUYA ASANO](https://appshunter.io/developer/1877006861) | [Takashi Kuwahara](https://appshunter.io/developer/1877604508) |

## What reviewers say

### WoofCalc

[App page](https://appshunter.io/ios/app/woofcalc/id6759528925)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $1.99 | one-time |


### Usagi Calc

[App page](https://appshunter.io/ios/app/usagi-calc/id6764348021)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is WoofCalc free?

WoofCalc is free to download, with in-app purchases available.

### Is Usagi Calc free?

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

### Do WoofCalc or Usagi Calc have ads?

WoofCalc shows ads; Usagi Calc does not.

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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.*