# 证件通 vs Scan2Sides

The clearest difference is iOS requirement: 证件通 at 15.0 against Scan2Sides's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 证件通 sells 3 in-app purchases, starting at $0.99 per month and Scan2Sides sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

证件通 ships an update every 3 months, Scan2Sides every 5 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 证件通 | Scan2Sides |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Size | 14 MB | 3 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Xi'an Jinlulai Information Technology Co. Ltd.](https://appshunter.io/developer/1086537482) | [永杰 杨](https://appshunter.io/developer/1799458676) |

## What reviewers say

### 证件通

[App page](https://appshunter.io/ios/app/id6741707045)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 按月订阅 | $0.99 | per month |
| 按年订阅 | $6.99 | per year |
| 终身会员 | $14.99 | one-time |


### Scan2Sides

[App page](https://appshunter.io/ios/app/scan2sides/id6743626230)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | one-time |


## Frequently asked questions

### Is 证件通 free?

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

### Is Scan2Sides free?

Scan2Sides is free to download, with in-app purchases available.

### Do 证件通 or Scan2Sides have ads?

Neither 证件通 nor Scan2Sides shows ads.

### Which is updated more often, 证件通 or Scan2Sides?

证件通 ships an update every 3 months, and Scan2Sides every 5 months. Most recently, 证件通 was updated on October 28, 2026 and Scan2Sides on October 25, 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.*