# 安信 vs 事密达IM

The clearest difference is in-app purchases: 安信 at none against 事密达IM's 3. 事密达IM's advantage is update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 事密达IM sells 3 one-off in-app purchases. 安信 asks for nothing beyond the download.

安信 ships an update every 3 months, 事密达IM monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | 安信 | 事密达IM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (8 ratings)](https://appshunter.io/ios/app/im/id6462860670/reviews)** |
| Number of ratings | — | **8** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 693 MB | 175 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [潇 吴](https://appshunter.io/developer/1157364125) | [广州集梦网络科技有限公司](https://appshunter.io/developer/1662413456) |

## What reviewers say

### 安信

[App page](https://appshunter.io/ios/app/id1255753349)

This internal communication tool offers a familiar chat experience for colleagues, with features like message synchronization across devices and read status indicators. It also integrates enterprise email and provides robust administrative controls for managing contacts and permissions.

**Highlights:** Familiar chat interface, Cross-platform message sync, Read status indicators, Contact management, Enterprise email integration, API for customization, Admin controls

**Features:** Apple Wallet

**In-app purchases:** none


### 事密达IM

[App page](https://appshunter.io/ios/app/im/id6462860670)

Record high-quality audio and video with AI noise reduction for clear sound. This app offers fun voice-changing effects for recordings and allows easy saving and sharing of past audio and video files.

**Highlights:** High-quality audio/video recording, AI noise reduction, Multiple voice-changing effects, Save and share recordings, Clear and bright audio quality

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月vip | $9.99 | one-time |
| 3个月vip | $29.99 | one-time |
| 6个月vip | $59.99 | one-time |


## Frequently asked questions

### Is 安信 free?

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

### Is 事密达IM free?

事密达IM is free to download, with in-app purchases available.

### Do 安信 or 事密达IM have ads?

Neither 安信 nor 事密达IM shows ads.

### Which is updated more often, 安信 or 事密达IM?

安信 ships an update every 3 months, and 事密达IM monthly. Most recently, 安信 was updated on October 24, 2026 and 事密达IM 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.*