# 铋过 vs Unit Tools

The clearest difference is ads: 铋过 at none against Unit Tools's shown. 铋过 also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 铋过 sells 10 one-off in-app purchases and Unit Tools sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

铋过 ships an update monthly, Unit Tools every 5 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | 铋过 | Unit Tools |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 163 MB | 23 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [广州华翰信息科技股份有限公司](https://appshunter.io/developer/1041878946) | [Nebula Technologies LLC](https://appshunter.io/developer/6778899769) |

## What reviewers say

### 铋过

[App page](https://appshunter.io/ios/app/id1605909428)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 市政学 | $119.99 | one-time |
| 管理心理学 | $119.99 | one-time |
| 成考高升本语文 | $119.99 | one-time |
| 成考高升本数学(理) | $119.99 | one-time |
| 成考高升本英语 | $119.99 | one-time |
| 大学英语六级听力 | $119.99 | one-time |
| 现代管理学 | $119.99 | one-time |
| 政治经济学 | $119.99 | one-time |
| 资本运营与融资 | $119.99 | one-time |
| 马克思主义基本原理概论 | $119.99 | one-time |


### Unit Tools

[App page](https://appshunter.io/ios/app/unit-tools/id6804796620)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | per month |


## Frequently asked questions

### Is 铋过 free?

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

### Is Unit Tools free?

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

### Do 铋过 or Unit Tools have ads?

Unit Tools shows ads; 铋过 does not.

### Which is updated more often, 铋过 or Unit Tools?

铋过 ships an update monthly, and Unit Tools every 5 weeks. Most recently, 铋过 was updated on October 25, 2026 and Unit Tools on October 25, 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.*