# eSign vs 兆山供应端

The clearest difference is in-app purchases: 兆山供应端 at none against eSign's 3. 兆山供应端 also leads on iOS requirement (9.0 vs 15.6). eSign's advantage is update cadence (every 3 weeks vs every 23 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. eSign sells 3 in-app purchases, starting at $4.99 per 7 days. 兆山供应端 asks for nothing beyond the download.

eSign ships an update every 3 weeks, 兆山供应端 every 23 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | eSign | 兆山供应端 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 23 months |
| Size | 40 MB | 29 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [AppDev Technolabs](https://appshunter.io/developer/1151829528) | [杭州云天软件股份有限公司](https://appshunter.io/developer/1051304783) |

## What reviewers say

### eSign

[App page](https://appshunter.io/ios/app/esign-pdf-signature-maker/id1184277410)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| eSign Premium : 1 Week | $4.99 | per 7 days |
| eSign Premium : 1 Year | $29.99 | per year |
| eSign Premium : 1 Year | $34.99 | per year |


### 兆山供应端

[App page](https://appshunter.io/ios/app/id1633192524)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eSign free?

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

### Is 兆山供应端 free?

兆山供应端 is free to download, with no in-app purchases.

### Do eSign or 兆山供应端 have ads?

Neither eSign nor 兆山供应端 shows ads.

### Which is updated more often, eSign or 兆山供应端?

eSign ships an update every 3 weeks, and 兆山供应端 every 23 months. Most recently, eSign was updated on November 6, 2026 and 兆山供应端 on November 7, 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.*