CollaChat vs LNK Chats
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CollaChat
A decentralized, open-source messaging app focused on privacy and data security. It leverages blockchain technology for peer-to-peer communication, offering end-to-end encryption and user control over data storage.
- Decentralized communication network
- End-to-end message encryption
- Open-source client and server
- Multi-device support (Web/Mobile/Desktop)
- Group chats and calls
- Message self-destruction and recall
- Contact and chat locking
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CollaChat is an open source private and decentralized messaging app owned by no one and everyone. It is aimed to leverage blockchain technology to put users back in control of their digital communication, while preserve user experiences that they know and love. Distinguished from the traditional messaging apps, CollaChat has three most important features which revolutionize the communication infrastructure: - Decentralized Colla Network is an unstoppable Web3 decentralized peer-to-peer communication and storage network, Colla DApp (e.g. CollaChat) connects to it via Colla Node. There is no centralized storage and control of user data, users can specify which Node(s) or even easily setup own Node(s) to connect to. - End-to-End Encrypted All messages are end-to-end encrypted, only author and intended recipients can see the content. - Open Source Both Colla Network client side (i.e. Colla DApp, e.g. CollaChat) and server side (i.e. Colla Node) are free and open source for anyone to download, install, run and build own deployment. CollaChat supports Web/Mobile/Desktop and Multi-device. It has most popular messaging and social functions: - Chat (supports text, emoji, voice, photo, video, file, card, supports group chat, supports offline messaging) - Voice/Video Call (supports group call) - Collection & Note - Channel Moreover, it provides some useful privacy protection functions: - Message Self-destruction - Message Recall - Contact/Chat Lock
LNK Chats
A secure messaging application focused on user privacy. It offers end-to-end encryption to ensure conversations are only readable by participants, with no third-party access or data tracking.
- End-to-end encryption
- Private conversations
- No third-party access
- No data tracking
- Ad-free experience
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Lock & Key Chats is a simple, secure messaging app designed to protect your privacy. With end-to-end encryption, only you and your recipient can read your messages—no third parties, no ads, no data tracking. Stay connected with confidence, knowing your conversations are truly private.
Screenshots
Verdict
The clearest difference is update cadence: LNK Chats at every 9 days against CollaChat's every 2 months. LNK Chats also leads on ratings volume (3 vs 1). CollaChat's advantage is device support (4 vs 2). On price, rating, 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.
On the App Store both sit at effectively the same score — 5.0 for CollaChat against 5.0 for LNK Chats. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
CollaChat ships an update every 2 months, LNK Chats every 9 days. Both last shipped on November 3, 2026.
| Parameter | CollaChat | LNK Chats |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 288 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | CURL TECH PTE. LTD. | Javier Gomez |
Customer experience
CollaChat
LNK Chats
In-app purchases
CollaChat
No in-app purchases
LNK Chats
No in-app purchases









