# しろにゃん電卓 vs Unit Converter

The clearest difference is update cadence: Unit Converter at every 2 weeks against しろにゃん電卓's every 30 months. Unit Converter also leads on iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. しろにゃん電卓 sells 1 one-off in-app purchase and Unit Converter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

しろにゃん電卓 ships an update every 30 months, Unit Converter every 2 weeks. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | しろにゃん電卓 | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 29 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Noshi.corporation](https://appshunter.io/developer/1736662057) | [伟鹏 李](https://appshunter.io/developer/1817642925) |

## What reviewers say

### しろにゃん電卓

[App page](https://appshunter.io/ios/app/id6479628667)

A cute and simple calculator app that makes everyday calculations fun with charming character animations. It handles basic arithmetic, tax, and discount calculations, with a clear display and helpful features like calculation history and haptic feedback.

**Highlights:** Basic arithmetic operations, Tax and discount calculations, Calculation history, Large, easy-to-read display, Character animations on button press, Haptic feedback and VoiceOver support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 限定解除 | $1.99 | one-time |


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-easyunit/id6754090225)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium Membership | $0.99 | one-time |


## Frequently asked questions

### Is しろにゃん電卓 free?

しろにゃん電卓 is free to download, with in-app purchases available.

### Is Unit Converter free?

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

### Do しろにゃん電卓 or Unit Converter have ads?

Neither しろにゃん電卓 nor Unit Converter shows ads.

### Which is updated more often, しろにゃん電卓 or Unit Converter?

しろにゃん電卓 ships an update every 30 months, and Unit Converter every 2 weeks. Most recently, しろにゃん電卓 was updated on October 30, 2026 and Unit Converter on November 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*