# 时辰 vs Calculator Sci Unit Converter

The clearest difference is price: 时辰 at Free against Calculator Sci Unit Converter's $1.99. Calculator Sci Unit Converter's advantage is ads (none vs shown) and update cadence (monthly vs every 6 months). On in-app purchases and device support there is nothing between them.

时辰 is free to download; Calculator Sci Unit Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

时辰 ships an update every 6 months, Calculator Sci Unit Converter monthly. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 时辰 | Calculator Sci Unit Converter |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[4.0 (2 ratings)](https://appshunter.io/ios/app/calculator-sci-unit-converter/id6772422667/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | — | Paid |
| Size | 146 MB | 25 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenyang Yuehe Gongchuang Information Technology Co.,Ltd](https://appshunter.io/developer/1578845704) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## What reviewers say

### 时辰

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator Sci Unit Converter

[App page](https://appshunter.io/ios/app/calculator-sci-unit-converter/id6772422667)

This app offers a robust calculator with both standard and scientific functions. It includes a unit converter for various measurements and currency, plus helpful shortcuts for percentages, taxes, and tips. All calculations are saved locally for easy access.

**Highlights:** Standard and scientific calculator modes, Unit conversion for length, weight, temperature, currency, Full calculation history log, Percentage, tax, and tip calculation shortcuts, Offline functionality, Optimized for phone and tablet

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

**In-app purchases:** none


## Frequently asked questions

### Is 时辰 free?

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

### Is Calculator Sci Unit Converter free?

Calculator Sci Unit Converter costs $1.99, with no in-app purchases.

### Do 时辰 or Calculator Sci Unit Converter have ads?

时辰 shows ads; Calculator Sci Unit Converter does not.

### Which is updated more often, 时辰 or Calculator Sci Unit Converter?

时辰 ships an update every 6 months, and Calculator Sci Unit Converter monthly. Most recently, 时辰 was updated on October 18, 2026 and Calculator Sci Unit Converter on October 11, 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.*