# 智慧安防+ vs 小当易换

The clearest difference is ads: 小当易换 at none against 智慧安防+'s shown. On price, update cadence, 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.

智慧安防+ ships an update fortnightly, 小当易换 weekly. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 智慧安防+ | 小当易换 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Weekly** |
| Size | 209 MB | 77 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [深圳市普耐德信息科技有限公司](https://appshunter.io/developer/1454076465) | [重庆市当换网络科技有限公司](https://appshunter.io/developer/1676031799) |

## What reviewers say

### 智慧安防+

[App page](https://appshunter.io/ios/app/plus/id1454076466)

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

**In-app purchases:** none


### 小当易换

[App page](https://appshunter.io/ios/app/id6474163985)

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

**In-app purchases:** none


## Frequently asked questions

### Is 智慧安防+ free?

智慧安防+ is free to download, with no in-app purchases.

### Is 小当易换 free?

小当易换 is free to download, with no in-app purchases.

### Do 智慧安防+ or 小当易换 have ads?

智慧安防+ shows ads; 小当易换 does not.

### Which is updated more often, 智慧安防+ or 小当易换?

智慧安防+ ships an update fortnightly, and 小当易换 weekly. Most recently, 智慧安防+ was updated on September 18, 2026 and 小当易换 on September 10, 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.*