# SecEMS vs 火星语

The clearest difference is in-app purchases: 火星语 at none against SecEMS's 4. 火星语 also leads on update cadence (every 5 days vs every 2 months). SecEMS's advantage is iOS requirement (8.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. SecEMS sells 4 in-app purchases, starting at $0.99 per month. 火星语 asks for nothing beyond the download.

SecEMS ships an update every 2 months, 火星语 every 5 days. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SecEMS | 火星语 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (17 ratings)](https://appshunter.io/ios/app/secems-secure-messaging/id368185529/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 62.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 242 MB | 44 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trustmobi](https://appshunter.io/developer/368185532) | [Qian Yun Network Service Co., Ltd.](https://appshunter.io/developer/1567568557) |

## What reviewers say

### SecEMS

[App page](https://appshunter.io/ios/app/secems-secure-messaging/id368185529)

This secure messaging app offers end-to-end encrypted voice and text conversations. It allows for disappearing messages, group chats, and media sharing with a focus on user privacy and data security.

**Highlights:** End-to-end encryption, Self-destructing messages, Private cloud sync, Group chats up to 100 members, Share photos, videos, and files, Password authentication

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $12.99 | per year |
| 密信月会员 | $2.49 | one-time |
| 密信年会员 | $25.99 | one-time |


### 火星语

[App page](https://appshunter.io/ios/app/id1579320044)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SecEMS free?

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

### Is 火星语 free?

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

### Do SecEMS or 火星语 have ads?

Neither SecEMS nor 火星语 shows ads.

### Which is updated more often, SecEMS or 火星语?

SecEMS ships an update every 2 months, and 火星语 every 5 days. Most recently, SecEMS was updated on October 21, 2026 and 火星语 on October 4, 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.*