# 图片压缩 vs 图片格式转换

The clearest difference is ads: 图片格式转换 at none against 图片压缩's shown. 图片格式转换 also leads on update cadence (every 2 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. 图片压缩 sells 6 in-app purchases, starting at $0.99 per month and 图片格式转换 sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

图片压缩 ships an update fortnightly, 图片格式转换 every 2 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 图片压缩 | 图片格式转换 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 72 MB | 19 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [上海倍明信息科技有限公司](https://appshunter.io/developer/1680090688) | [炎蔚 张](https://appshunter.io/developer/1676178960) |

## What reviewers say

### 图片压缩

[App page](https://appshunter.io/ios/app/id1645028214)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $0.99 | per month |
| 连续包年 | $7.99 | per year |
| 1次解锁 | $0.99 | one-time |
| 10次保存 | $0.99 | one-time |
| 50次保存 | $0.99 | one-time |
| 终身会员 | $8.99 | one-time |


### 图片格式转换

[App page](https://appshunter.io/ios/app/id6447889172)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周卡会员 | $0.99 | per 7 days |
| 永久会员 | $7.99 | one-time |


## Frequently asked questions

### Is 图片压缩 free?

图片压缩 is free to download, with in-app purchases available.

### Is 图片格式转换 free?

图片格式转换 is free to download, with in-app purchases available.

### Do 图片压缩 or 图片格式转换 have ads?

图片压缩 shows ads; 图片格式转换 does not.

### Which is updated more often, 图片压缩 or 图片格式转换?

图片压缩 ships an update fortnightly, and 图片格式转换 every 2 days. Most recently, 图片压缩 was updated on November 3, 2026 and 图片格式转换 on October 30, 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.*