# e护考培 vs 卓信签

The clearest difference is update cadence: e护考培 at every 5 weeks against 卓信签's every 3 months. 卓信签's advantage is iOS requirement (10.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

e护考培 ships an update every 5 weeks, 卓信签 every 3 months. The most recent releases landed on October 4, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | e护考培 | 卓信签 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Size | 30 MB | 11 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Shandong Nursing Association](https://appshunter.io/developer/1519185535) | [山东卓码信息技术有限公司](https://appshunter.io/developer/1484067461) |

## What reviewers say

### e护考培

[App page](https://appshunter.io/ios/app/e/id1519185533)

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

**In-app purchases:** none


### 卓信签

[App page](https://appshunter.io/ios/app/id1560956043)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is e护考培 free?

e护考培 is free to download, with no in-app purchases.

### Is 卓信签 free?

卓信签 is free to download, with no in-app purchases.

### Do e护考培 or 卓信签 have ads?

Neither e护考培 nor 卓信签 shows ads.

### Which is updated more often, e护考培 or 卓信签?

e护考培 ships an update every 5 weeks, and 卓信签 every 3 months. Most recently, e护考培 was updated on October 4, 2026 and 卓信签 on October 27, 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.*