Monal vs K9 Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Monal
This open-source messenger provides a fast and user-friendly way to connect to the XMPP public chat network. Enjoy private, ad-free communication with end-to-end encryption and features like group chats and file sharing.
- Open Source
- No Ads
- OMEMO encrypted chat
- Multi user chat (MUC)
- Audio/Video calls
- File sharing
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There has never been a better time to get into XMPP, a free public chat network no one controls or owns. Monal is a fast and user friendly way to use XMPP. Just download the app, login or register and you are ready to chat in minutes. It looks and works the way other apps do, so there is no need to “learn XMPP” or even care what it is. Notable features: - Open Source - No Ads! Strong focus on privacy. Does not phone home and does not have software "metrics" - Does not read any personal information - With a direct connection to your server, your password and all other info are never sent to a third-party - OMEMO encrypted chat - Will work with corporate XMPP servers that require VPN - Multi user chat (MUC) support for group chats - Audio/Video calls Implements certain XMPP extensions intended to improve mobile communication: - XEP-0357: Push Notifications - XEP-0280: Message Carbons keep messages in synch between clients - XEP-0198: Stream Management to quickly reconnect - XEP-0199: XMPP Ping to maintain connections - XEP-0313: Message Archive Management to download chat history - XEP-0352: Client State Indication for dramatic reduction on power use - XEP-0363: HTTP File Upload to send images in conversations
K9 Chat
This secure chat application offers end-to-end encryption and zero-trust communication for private teams and organizations. It supports audio, video, screensharing, and voice notes without tracking user activity. Access requires an account provided by an administrator.
- End-to-end encryption
- Zero-trust communication
- Anonymous messaging
- Audio and video calls
- Screensharing
- Voice notes
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K9 Chat is an end-to-end encrypted messaging app for organisations that run their own K9 Chat server. Messages, calls and files are encrypted on your device, so only the people in the conversation can read them. FEATURES • One-to-one and group messaging • Encrypted voice and video calls • Screen sharing • Voice messages • Photo, video and file sharing • Threads, replies and reactions FOR ORGANISATIONS K9 Chat connects only to K9 servers operated by your own organisation, whether on premise, cloud-hosted or hybrid. It is not a public messaging network and does not connect to any other service. BEFORE YOU DOWNLOAD An account is required, and accounts are issued by your organisation's administrator. Without one, you will not be able to sign in.
Screenshots
Verdict
The clearest difference is rating: K9 Chat at 5.0 against Monal's 3.7. K9 Chat also leads on review sentiment (100% vs 58%). Monal's advantage is ratings volume (141 vs 2) and iOS requirement (14.0 vs 18.5). On price, update cadence, ads and in-app purchases 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.
K9 Chat holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Monal has 141 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 58% of Monal's written reviews are positive against 100% of K9 Chat's.
Monal ships an update every 5 weeks, K9 Chat every 3 weeks. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.
| Parameter | Monal | K9 Chat |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (141 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 57.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 141 — better | 2 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 71 MB | 254 MB |
| Age rating | 4+ | 4+ |
| Developer | Molitor und Dietzel, Inh. Thilo Molitor | Colohost LLC |
Customer experience
Monal
K9 Chat
Bugs and requests
Monal
Reported bugs
4 issues- Disconnects frequently
- Incompatible with some XMPP servers
- Crashes when sending messages
- Issues with loading contact lists
Requested features
4 requests- Add OTR/PGP encryption support
- Improve group chat functionality
- Allow customization of sounds and notifications
- Optimize for older iOS versions
K9 Chat
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Monal
No in-app purchases
K9 Chat
No in-app purchases









