# SecEMS vs OpusChat

The clearest difference is rating: OpusChat at 5.0 against SecEMS's 3.8. OpusChat also leads on review sentiment (100% vs 63%) and in-app purchases (none vs 4). SecEMS's advantage is ratings volume (17 vs 4) and iOS requirement (8.0 vs 15.0). 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. OpusChat asks for nothing beyond the download.

OpusChat holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 17 and 4 respectively. Written reviews point the same way: 63% of SecEMS's written reviews are positive against 100% of OpusChat's.

SecEMS ships an update every 2 months, OpusChat weekly. The most recent releases landed on July 31, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | SecEMS | OpusChat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (17 ratings)](https://appshunter.io/ios/app/secems-secure-messaging/id368185529/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/opuschat/id1008680858/reviews)** |
| Number of ratings | **17** | 4 |
| Positive reviews | 62.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 242 MB | 143 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trustmobi](https://appshunter.io/developer/368185532) | [yyResearch Limited](https://appshunter.io/developer/899062213) |

## 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 |


### OpusChat

[App page](https://appshunter.io/ios/app/opuschat/id1008680858)

This app allows users to manage multiple distinct profiles, or personas, within a single application. It offers enhanced privacy controls, secure messaging, and voice calls, enabling users to tailor their interactions and presentation for different social circles.

**Highlights:** Multi-persona support, Secure multimedia messaging, High-quality voice calls, Customizable persona settings, End-to-end encryption, Granular privacy controls

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SecEMS free?

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

### Is OpusChat free?

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

### Which has better reviews, SecEMS or OpusChat?

OpusChat is rated higher. SecEMS averages 3.8 out of 5 from 17 ratings, while OpusChat averages 5.0 from 4 ratings.

### Do SecEMS or OpusChat have ads?

Neither SecEMS nor OpusChat shows ads.

### Which is updated more often, SecEMS or OpusChat?

SecEMS ships an update every 2 months, and OpusChat weekly. Most recently, SecEMS was updated on July 31, 2026 and OpusChat on September 2, 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.*