# 智天使2 vs 小当易换

The clearest difference is ads: 小当易换 at none against 智天使2's shown. 小当易换 also leads on update cadence (every 8 days vs every 2 months) and iOS requirement (13.0 vs 15.6). On price, 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.

智天使2 ships an update every 2 months, 小当易换 every 8 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | 智天使2 | 小当易换 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/2/id1167857840/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Ad-supported | — |
| Size | 94 MB | 78 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [SHENZHEN THE VICTORY TECHNOLOGY CO.,LTD.](https://appshunter.io/developer/1038299270) | [Chongqing Danghuan Network Technology Co., Ltd.](https://appshunter.io/developer/1676031799) |

## What reviewers say

### 智天使2

[App page](https://appshunter.io/ios/app/2/id1167857840)

This app allows two-way voice communication with a connected device, tracks its real-time and historical location, and alerts you when it leaves a designated safe zone. It also supports setting alarms, sending rewards, finding the device, and managing device settings like SOS numbers and call logs.

**Highlights:** Two-way voice messaging, Real-time and historical location tracking, Customizable safe zone alerts, Device alarm and find-me function, SOS and low battery notifications, Device settings management

**Features:** macOS Compatibility

**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 智天使2 free?

智天使2 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 智天使2 or 小当易换 have ads?

智天使2 shows ads; 小当易换 does not.

### Which is updated more often, 智天使2 or 小当易换?

智天使2 ships an update every 2 months, and 小当易换 every 8 days. Most recently, 智天使2 was updated on October 24, 2026 and 小当易换 on October 24, 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.*