# 分秒算术 vs UnionApp

The clearest difference is price: 分秒算术 at Free against UnionApp's $0.99. 分秒算术 also leads on iOS requirement (10.0 vs 15.6). UnionApp's advantage is update cadence (every 10 days vs every 10 months). On ads, in-app purchases and device support there is nothing between them.

分秒算术 is free to download; UnionApp costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

分秒算术 ships an update every 10 months, UnionApp every 10 days. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 分秒算术 | UnionApp |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 10 days** |
| Monetization | — | Paid |
| Size | 24 MB | 142 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [镭瑚 王](https://appshunter.io/developer/1802522164) | [博宇 姚](https://appshunter.io/developer/6786924730) |

## What reviewers say

### 分秒算术

[App page](https://appshunter.io/ios/app/1/id6746329322)

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

**In-app purchases:** none


### UnionApp

[App page](https://appshunter.io/ios/app/unionapp/id6787034553)

This app is a comprehensive tool for rhythm game enthusiasts, offering features like collection management, score tracking across various servers, and a convenient arcade locator. It supports multiple accounts and Aime card reading for a seamless experience.

**Highlights:** Collection management, Score tracking (global, regional, private servers), Arcade machine locator, Multi-account support, Aime card reading support

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

**In-app purchases:** none


## Frequently asked questions

### Is 分秒算术 free?

分秒算术 is free to download, with no in-app purchases.

### Is UnionApp free?

UnionApp costs $0.99, with no in-app purchases.

### Do 分秒算术 or UnionApp have ads?

Neither 分秒算术 nor UnionApp shows ads.

### Which is updated more often, 分秒算术 or UnionApp?

分秒算术 ships an update every 10 months, and UnionApp every 10 days. Most recently, 分秒算术 was updated on October 13, 2026 and UnionApp on October 14, 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.*