# 一定签电子合同 vs QuickFox Pro

The clearest difference is update cadence: QuickFox Pro at weekly against 一定签电子合同's every 3 months. 一定签电子合同's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 一定签电子合同 sells 10 one-off in-app purchases and QuickFox Pro sells 10 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

一定签电子合同 ships an update every 3 months, QuickFox Pro weekly. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 一定签电子合同 | QuickFox Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Size | 59 MB | 78 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [上海寻程网络科技有限公司](https://appshunter.io/developer/1500716476) | [Xiamen Kezhensai Technology Co.,Ltd.](https://appshunter.io/developer/1603221811) |

## What reviewers say

### 一定签电子合同

[App page](https://appshunter.io/ios/app/id6757371467)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 电子合同标准版个人 B套餐 | $19.99 | one-time |
| 电子合同标准版个人C套餐 | $29.99 | one-time |
| 个人电子签章包年版 | $29.99 | one-time |
| 电子合同标准版企业体验套餐 | $49.99 | one-time |
| 电子合同标准版个人 D套餐 | $129.99 | one-time |
| 电子合同标准版企业A套餐 | $129.99 | one-time |
| 企业电子签章包年版-3用户 | $129.99 | one-time |
| 电子合同标准版企业 B套餐 | $299.99 | one-time |
| 电子合同标准版个人 E套餐 | $399.99 | one-time |
| 电子合同标准版企业C套餐 | $499.99 | one-time |


### QuickFox Pro

[App page](https://appshunter.io/ios/app/quickfox-pro/id6761413972)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP联系包月 | $5.99 | per month |
| VIP连续包月(前3天免费) | $5.99 | per month |
| VIP连续包季 | $14.99 | per 3 months |
| 尊享VIP连续包月 | $22.99 | per month |
| VIP连续包年 | $39.99 | per year |
| VIP周卡 | $1.99 | one-time |
| 尊享月卡 | $24.99 | one-time |
| 尊享季卡 | $59.99 | one-time |
| 尊享半年卡 | $115.99 | one-time |
| 尊享年卡 | $199.99 | one-time |


## Frequently asked questions

### Is 一定签电子合同 free?

一定签电子合同 is free to download, with in-app purchases available.

### Is QuickFox Pro free?

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

### Do 一定签电子合同 or QuickFox Pro have ads?

Neither 一定签电子合同 nor QuickFox Pro shows ads.

### Which is updated more often, 一定签电子合同 or QuickFox Pro?

一定签电子合同 ships an update every 3 months, and QuickFox Pro weekly. Most recently, 一定签电子合同 was updated on October 16, 2026 and QuickFox Pro on October 13, 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.*