# unitCalc vs 时辰

The clearest difference is ads: unitCalc at none against 时辰's shown. unitCalc also leads on update cadence (monthly vs every 6 months). On price, in-app purchases, device support and iOS requirement 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, 时辰 every 6 months. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | unitCalc | 时辰 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 6 months |
| Size | 1 MB | 146 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [培祐 黃](https://appshunter.io/developer/1053411333) | [Shenyang Yuehe Gongchuang Information Technology Co.,Ltd](https://appshunter.io/developer/1578845704) |

## What reviewers say

### unitCalc

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

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

**In-app purchases:** none


### 时辰

[App page](https://appshunter.io/ios/app/id6748372619)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is unitCalc free?

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

### Is 时辰 free?

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

### Do unitCalc or 时辰 have ads?

时辰 shows ads; unitCalc does not.

### Which is updated more often, unitCalc or 时辰?

unitCalc ships an update monthly, and 时辰 every 6 months. Most recently, unitCalc was updated on October 24, 2026 and 时辰 on October 18, 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.*