SecEMS vs OpusChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SecEMS
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.
- End-to-end encryption
- Self-destructing messages
- Private cloud sync
- Group chats up to 100 members
- Share photos, videos, and files
- Password authentication
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“I’ve been using SecEMS for a couple of months now. Finally, a secure SMS and messaging app that works as it should, and even looks better than other Messenger apps. This is the way all messenger apps should work, safely encrypting voice & text messages and not storing our personal details.” - Gannett Clarke Privacy is possible,SecEMS is private communication platform to everyone. Help you chat with friends around the world. SecEMS is the most secure instant messaging app that features end-to-end encryption, so your messages can only be read by the intended recipients, with no data logged on SecEMS’s servers. Using SecEMS, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media all types of disappearing content with complete privacy — messages, photos, videos, and even files.It’s secure, superfast, simple, fast, free and synced across all your devices.SecEMS is not only a safe chat, but also an encrypted messenger. ###Features### SECURE: SecEMS offers Secret Chats. The messages can be programmed to self-destruct automatically from both participating devices. This way you can send all types of disappearing content — messages, photos, audios, videos and even files. Secret Chats use end-to-end encryption to ensure that a message can only be read by its intended recipient. PRIVACY: We take your privacy seriously and will never give third parties access to your data. SecEMS has security features that keep your privacy with password authentication and data encryption. It is the best place to hide your personal photos, videos and documents. Private Cloud: SecEMS seamlessly syncs across all your devices, so you can always securely access your data. Safe and efficient private cloud, allowing you to access your information anytime, anywhere. GROUP CHAT & SHARING: With SecEMS, you can form large group chats and broadcast lists of up to 100 members, quickly share large audios, videos, documents (.doc, .ppt, .zip, etc.), and send an unlimited amount of photos to your friends. FAST: SecEMS is the fastest messaging app on the market because it uses a distributed infrastructure with data centers positioned around the globe to connect users to the closest possible server. RELIABLE: Built to deliver your messages in the minimum bytes possible, SecEMS is the most reliable messaging system ever made. It works even on the weakest mobile connections. ### SUPPORT ### Please visit http://app.secems.net for more information. You can also reach us via support@secems.net or on Twitter @secems – we’re happily awaiting your feedback!
OpusChat
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.
- Multi-persona support
- Secure multimedia messaging
- High-quality voice calls
- Customizable persona settings
- End-to-end encryption
- Granular privacy controls
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A fully-featured, multi-persona chat app which lets you take full control of your privacy. Modeling Real-life Relationships and Interactions with Multiple Personas Personas are different aspects of our character that we choose to share with different people, e.g. to families, to friends, to co-workers, to strangers. OpusChat is a chat app which supports personas. In addition to the features one would expect from a chat app, you could create and use multiple personas in one seamless app. Each persona is seen by others as a completely different profile. You can customise how you present yourselves and manage each relationship. You could protect and control your privacy when messaging or calling contacts using different personas, as well as apply specific preferences for each persona. Full control over your data and privacy * Make friends with a unique ID, QR code or phone contact matching (only when phone numbers appear in phone contacts of both users) * Connect to people you really know * Eliminate any unsolicited phone calls or messages * Full control over how you interact with each other, what others can see, share or receive * Customise settings for each relationship How is OpusChat different from other popular chat apps? * True multi-persona support - switch between personas easily without having to 'sign-in/sign-out' * Manage your social network easily & without hassle * Strong emphasis on privacy: - We don't ask you for your phone number (unless you choose to use it for account recovery or friend matching) - We don't ask you for your email (unless you choose to use it for account recovery reasons) Features: * Easily switch between different personas in a single app with a single tap * Secure multimedia messaging features (text, photos, videos, voice recordings, locations, etc) * Free high quality, secure voice calls * Customise name, photo, preference and privacy settings for each persona * Accept/reject voice calls and voice notes down to per user level * Set the size and clarity of media preview – large vs small and clear vs blur Security: * End-to-end encrypted, with forward secrecy * Messages are stored on our servers encrypted until they are delivered * No tracking of user experience data 100% Free. No ads. Chat, call, share using multiple personas. What is OpusChat? Check this out. https://www.youtube.com/watch?v=6AxxJ9HFMkk Follow us on Twitter: https://twitter.com/OpusChat
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SecEMS | OpusChat |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (17 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 62.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 17 — better | 4 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 242 MB | 143 MB |
| Age rating | 4+ | 4+ |
| Developer | Trustmobi | yyResearch Limited |
Customer experience
SecEMS
OpusChat
In-app purchases
SecEMS
- Monthly Subscription$0.991 Month
- Yearly Subscription$12.991 Year
- 密信月会员$2.49
- 密信年会员$25.99
OpusChat
No in-app purchases









