K9 Chat vs YU.CO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
YU.CO
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Discover a new kind of social experience — where communication, inspiration, and creativity come together in one app. YU.CO is a platform that brings together the best elements of social networks, modern messaging, and expert content in one connected ecosystem. Key Features Feed & Stories Share moments with friends through posts and stories. Follow the people who matter to you and discover content from a vibrant, growing community. Modern Messenger Stay connected in real time with advanced messaging features, including file sharing, organized conversations, and a clean, intuitive interface. Expert Content Hub Access exclusive articles, live sessions, and short videos from experts in business, technology, health, creativity, and many other fields. Connections Discover more ways to meet people — whether you are looking for love, friendship, professional connections, or business partners. One App. Endless Possibilities. YU.CO keeps you inspired and informed every day. YU.CO — your universe, revolving around you.
Screenshots
Verdict
K9 Chat and YU.CO are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 ships an update every 3 weeks, YU.CO monthly. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.
| Parameter | K9 Chat | YU.CO |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 | 17.2 — better |
| Further details — not scored | ||
| Size | 254 MB | 237 MB |
| Age rating | 4+ | 12+ |
| Developer | Colohost LLC | Irina Dubovitskaya |
In-app purchases
K9 Chat
No in-app purchases
YU.CO
No in-app purchases
