Cyph vs Atom Messenger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cyph
A secure messaging and social networking service focused on extreme privacy and ease of use. It offers advanced protection against man-in-the-middle attacks and future quantum computing threats.
- Cryptographically secure messaging
- Extreme privacy
- Man-in-the-middle attack mitigation
- Quantum computing protection
- Native apps and web access
- Ease of use
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Cyph is a cryptographically secure messaging and social networking service, providing an extreme level of privacy combined with best-in-class ease of use. Cyph's patented technology — built by former SpaceX engineers, audited by Cure53, and the basis of research presentations at Black Hat and DEF CON — uniquely allows Cyph to solve the major security and usability limitations of conventional solutions. Only Cyph automatically mitigates man-in-the-middle attacks (with no manual in-person fingerprint verification), offers both native apps and cryptographically secure web access (thanks to WebSign), and as a bonus protects present-day end-to-end encrypted data from future quantum computing attacks.
Atom Messenger
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Atom is the integrated messaging solution for organizations or individuals that require maximum security. The combination of Atom's proven security architecture and absolute data ownership create an independent chat environment that is unmatched in terms of confidentiality. PRIVACY AND ANONYMITY Atom is designed to generate the least amount of metadata possible without keeping conversations inside the phone. Each user is anonymous and registration takes place only through direct invitation from the administrator of the single node. SECURE ENCRYPTION Atom performs full end-to-end encryption of all communications exchanged. Only the intended recipient, and No one else, will be able to read your messages. Encryption keys are generated and securely stored on user devices to prevent copying or backdoor access. FULL FEATURED Atom is not only a messenger for encrypted and confidential communications: it is also a versatile and feature-rich tool. • Make voice calls • Compose texts and send voice messages • Send any type of file (pdf animated gif, mp3, doc, zip, etc...) • Create group chats, add and remove members at any time • Profile security settings for cancellation due to inactivity or for managing the self-preservation of communications • Settings to define messages that self-destruct on reading or timed • Verify a contact's identity by scanning their personal QR code • Use Atom as an anonymous instant messaging tool SELF HOSTED SERVERS Atom messenger has a decentralized infrastructure where individual servers are isolated from each other. The application allows you to connect to multiple nodes that you can access by invitation or as an administrator (who purchases and manages an instance of the platform) FULL ANONYMITY Each Atom user receives a random ATOM ID that identifies him. No phone number or email address is required to use Atom. This exclusive feature allows you to use Atom completely anonymously: you don't need to give private information and you don't need to open an account. NO ADVERTISING, NO TRACKER Atom is not funded by advertising and does not collect user data. ASSISTANCE/CONTACTS If you have any questions or problems, check out our website: https://atomapp.cloud
Screenshots
Verdict
The clearest difference is in-app purchases: Atom Messenger at none against Cyph's 1. Cyph's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price, update cadence and ads 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. Cyph sells 1 in-app purchase, starting at $68.99 per month. Atom Messenger asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 4, 2026 and September 21, 2026 respectively.
| Parameter | Cyph | Atom Messenger |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (19 ratings) — better | — |
| Positive reviews | 36.4% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 162 MB | 42 MB |
| Age rating | 4+ | 17+ |
| Developer | Cyph | igloocy s.r.l. |
In-app purchases
Cyph
- Platinum (Monthly)$68.991 Month
Atom Messenger
No in-app purchases







