# ±0正負零 vs 拼豆图纸

The clearest difference is iOS requirement: ±0正負零 at 13.0 against 拼豆图纸's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ±0正負零 | 拼豆图纸 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | Every 9 days |
| Size | 75 MB | 14 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [冠源 余](https://appshunter.io/developer/1100084170) | [Shenyang Yuehe Gongchuang Information Technology Co.,Ltd](https://appshunter.io/developer/1578845704) |

## What reviewers say

### ±0正負零

[App page](https://appshunter.io/ios/app/0/id6739824373)

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

**In-app purchases:** none


### 拼豆图纸

[App page](https://appshunter.io/ios/app/id6810128518)

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

**In-app purchases:** none


## Frequently asked questions

### Is ±0正負零 free?

±0正負零 is free to download, with no in-app purchases.

### Is 拼豆图纸 free?

拼豆图纸 is free to download, with no in-app purchases.

### Do ±0正負零 or 拼豆图纸 have ads?

Neither ±0正負零 nor 拼豆图纸 shows ads.

### Which is updated more often, ±0正負零 or 拼豆图纸?

±0正負零 ships an update every 9 days, and 拼豆图纸 every 9 days. Most recently, ±0正負零 was updated on October 13, 2026 and 拼豆图纸 on October 8, 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.*