# unitCalc vs 蛙角鳴星

The clearest difference is update cadence: 蛙角鳴星 at every 2 weeks against unitCalc's monthly. 蛙角鳴星 also leads on iOS requirement (13.0 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.

unitCalc ships an update monthly, 蛙角鳴星 every 2 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | unitCalc | 蛙角鳴星 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 1 MB | 200 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [培祐 黃](https://appshunter.io/developer/1053411333) | [Aurismart Technology Corporation](https://appshunter.io/developer/1531991960) |

## What reviewers say

### unitCalc

[App page](https://appshunter.io/ios/app/unitcalc/id6445979881)

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

**In-app purchases:** none


### 蛙角鳴星

[App page](https://appshunter.io/ios/app/id6748662203)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is unitCalc free?

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

### Is 蛙角鳴星 free?

蛙角鳴星 is free to download, with no in-app purchases.

### Do unitCalc or 蛙角鳴星 have ads?

Neither unitCalc nor 蛙角鳴星 shows ads.

### Which is updated more often, unitCalc or 蛙角鳴星?

unitCalc ships an update monthly, and 蛙角鳴星 every 2 weeks. Most recently, unitCalc was updated on October 27, 2026 and 蛙角鳴星 on October 28, 2026.

---

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