nMobile vs SimpleX Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nMobile
This secure messaging app prioritizes user privacy by keeping all data on your device. It offers end-to-end encrypted chats, group management, and cross-platform compatibility. An optional wallet feature allows for managing cryptocurrency.
- End-to-end encrypted chat
- Group chat management
- Cross-platform compatibility
- HTML/Markdown message formatting
- Optional cryptocurrency wallet
- NKN token support
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nMobile secure chat protects your personal data by keeping it on your device where it belongs. All messages are encrypted and no data is ever stored in the cloud. Key features of nMobile: D-Chat: – Secure group chat and private one-on-one chat with end-to-end and hop by hop encryption – Manage private groups (group admin, add/remove user, mute) – Cross platform, chat with other nMobile users or use our compatible web browser plugin to securely chat with users on almost any device – Send images, animated gifs, and format your messages with HTML/MarkDown NKN Mobile Wallet (optional): – NKN Mainnet token formats supported – Manage your NKN wallet right from your mobile, create or import an existing wallet and export your wallet for backup. – Send or receive NKN token payments General: – supports both English and Chinese language nMobile is developed by NKN.org. NKN is building the world's largest mesh network featuring new communication services such as content delivery, secure messaging, and direct file transfer.
SimpleX Chat
This secure messaging app offers unparalleled privacy by eliminating user identifiers. Enjoy end-to-end encrypted messages, calls, and files with features like disappearing messages and incognito mode. Connect via invitation links without needing phone numbers or emails.
- No user identifiers
- End-to-end encrypted messages
- Disappearing messages
- Incognito mode
- Encrypted file and voice messages
- Secret chat groups
- Encrypted portable chat database
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SimpleX - the first messaging network without user identifiers of any kind (not even random numbers) - 100% private by design! Security assessments by Trail of Bits: 2022: https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html 2024: https://simplex.chat/blog/20241014-simplex-network-v6-1-security-review-better-calls-user-experience.html SimpleX Chat features: - quantum resistant end-to-end encrypted messages, with editing, replies and deletion. - disappearing messages with opt-out per contact/group. - message reactions. - delivery receipts, with opt-out per contact or group. - multiple chat profiles, with hidden profiles. - app access and self-destruct passcodes. - incognito mode - unique to SimpleX Chat. - end-to-end encrypted images and files. - voice messages up to 5 minutes – also end-to-end encrypted. - "live" messages – they update for all recipients as you type them, every few seconds - unique to SimpleX Chat. - connect via one-time invitation links or via long-term public addresses. - secret chat groups - only group members know the group exists and who is the member. - end-to-end encrypted audio and video calls. - connection security code verification, for contacts and group members – to protect from man-in-the-middle attacks (e.g. invitation link substitution). - end-to-end encrypted push notifications (they contain only encrypted meta-data, not the actual content). - encrypted portable chat database - you can transfer your chat contacts and history to another device. - all local files and media are encrypted by default. - animated images and "stickers" (e.g., from GIF and PNG files and from 3rd party keyboards). SimpleX Chat advantages: - privacy of your identity, profile, contacts and metadata: unlike any other existing messaging platform, SimpleX uses no phone numbers or any other identifiers assigned to the users - not even random numbers. This protects the privacy of who you are communicating with, hiding it from SimpleX platform servers and from any observers. - complete protection against spam and abuse: as you have no identifier on SimpleX platform, you cannot be contacted unless you share a one-time invitation link or an optional temporary user address. - full ownership, control and security of your data: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received. - decentralized proxied peer-to-peer network: you can use SimpleX Chat via your own relay servers and still communicate with people using pre-configured or any other SimpleX relay servers. - fully open-source code. You can connect to anybody you know via link or scan QR code (in the video call or in person) and start sending messages instantly - no emails, phone numbers or passwords needed. Your profile and contacts are only stored in the app on your device - relay servers do not have access to this information. All messages are end-to-end encrypted using open-source quantum resistant double-ratchet protocol; the messages are delivered via relay servers using open-source SimpleX Messaging Protocol. Please send us any questions via the app (connect to the team via the app settings!), email chat@simplex.chat or submit issues on GitHub (https://github.com/simplex-chat/simplex-chat/issues) Ream more about SimpleX Chat at https://simplex.chat Get source code in our GitHub repo: https://github.com/simplex-chat/simplex-chat Follow us on X/Twitter (@SimpleXChat), Reddit (r/SimpleXChat/) and Mastodon (https://mastodon.social/@simplex) for the latest updates.
Screenshots
Verdict
The clearest difference is review sentiment: nMobile at 92% against SimpleX Chat's 56%. nMobile also leads on rating (4.8 vs 4.3) and iOS requirement (13.0 vs 15.0). SimpleX Chat's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (268 vs 21). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
nMobile holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: SimpleX Chat has 268 ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 92% of nMobile's written reviews are positive against 56% of SimpleX Chat's.
nMobile ships an update every 3 months, SimpleX Chat every 2 weeks. The most recent releases landed on September 8, 2026 and October 12, 2026 respectively.
| Parameter | nMobile | SimpleX Chat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (21 ratings) — better | 4.3 (268 ratings) |
| Positive reviews | 91.7% of reviews — better | 56.5% of reviews |
| Number of ratings | 21 | 268 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #207 — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 73 MB | 193 MB |
| Age rating | 4+ | 12+ |
| Developer | NKN Labs Inc. | SimpleX Chat |
Customer experience
nMobile
SimpleX Chat
Bugs and requests
nMobile
Not enough reviews yet to summarise bugs or requests.
SimpleX Chat
Reported bugs
19 issues- App crashes on startup (v6.2 update)
- Keyboard unresponsive on iOS 26
- Messages not appearing until app is opened
- Notifications not working despite correct settings
- Chat freezing and lag on iPhone
Show 14 moreShow fewer
- QR code scanning not working on iPad
- Desktop-phone sync connection failures
- Auto-delete messages interrupting voice recordings
- Typing inserts extra characters
- iOS 17 keyboard autofill interferes with typing
- Chat object unresponsive but moveable (delete)
- Backup restoration key confirmation fails if contact offline
- Server switching not reflected in chats
- Cannot change sending server for stuck messages
- Connection errors when creating chat links
- Video upload takes hours
- Call notifications appearing in Russian
- Random photo auto-attachment during typing
- Unable to unsend or delete sent attachments
Requested features
14 requests- Read receipts option
- Typing indicators
- Bot maker feature like Telegram
- Multiple image attachment with descriptions
- Better emoji reaction selection
Show 9 moreShow fewer
- Mac desktop app
- Web app (PWA)
- iPad optimization
- Improved group discovery/search
- Global self-destruct message settings
- Pin photos in group welcome messages
- Chinese input method support
- Ringing tone during calls
- Speakerphone launch option before call pickup
In-app purchases
nMobile
No in-app purchases
SimpleX Chat
No in-app purchases









