CollaChat vs Tarsier
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
Tarsier
This secure messaging app offers a private and decentralized communication experience. It prioritizes user privacy by requiring only a nickname and employing end-to-end encryption. Enjoy unlimited group chats and open-source flexibility across multiple devices.
- End-to-end encryption
- Decentralized architecture
- Nickname registration
- Unlimited group chat
- Open source
- Multi-platform support
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Imagine a world where you can message anyone without being forced to install the same app, Imagine a world where you can host your own communication and still be part of a huge network. This will be brought to you by Tarsier Secure Chat, which is powered by DIM. DIM - an open source project that provides the protocol and system architecture. which is designed for the next generation Internet that is coming. DIM network could serve as a social network, in which users can send messages or digital assets freely. Besides that, DIM can serve the Internet of Things as well. Allowing software to communicate autonomously. Although other platforms are owned and operated by a single corporation, who has full control over everything, DIM network is decentralized, and there is no one server, company, or person running it. Anyone can join and run their own services on DIM network. But, how does this work? When someone joins DIM network with their servers, they are called Service Providers. Since DIM network is open, a Service Provider can have its own set of services, while complying with DIM Protocol. User identification is generated and verified using a cryptographically algorithm, and no longer authenticated by a single corporation. Because of this, Service Providers cannot monetize the user’s privacy or data, they must compete by providing better services, and a better ecosystem. This means that all the Service Providers share the same potential user base. And users could choose the Service Provider that fits their needs at anytime. Nowadays, the internet users place greater emphasis on protecting their privacy, many people are concerned that their private information may be illegally used. I hope this app can build a more safety social network to allow who don 't want to provide too much information to the man-in-the-middle, can still keep in touch with their friends freely. Hope this application can bring you more convenience. Enjoy it! # Tarsier - Secure Chat Your private chat space, secure, reliable, and under your control. ## App Introduction In an age of information overload, protecting your privacy is more important than ever. Tarsier is a privacy-focused social app that lets you share everything with your friends without worrying about information leaks. Its unique decentralized design puts your data in your own hands; we don't collect or store any of your personal information. All you need is a nickname to start a private chat. ## Key Features - Absolutely Secure - Advanced end-to-end encryption ensures every message is visible only to you and your friends. A decentralized architecture and zero-trust forwarding nodes further safeguard your data and prevent information leaks. - Ultimate Privacy - Register with just a nickname, no personal information required, leaving you in complete control of your identity. - Unlimited Group Chat - Create large groups with unlimited members and chat without interruption. - Free and Open - Completely open source, allowing for customization and the ability to build private nodes. Open APIs allow third-party developers to create practical tools like real-time translation, information aggregation, and AI assistants, continuously improving your communication experience. - Multi-Platform Support - Enjoy secure and seamless communication on all your devices, wherever you are. ## Why choose Tarsier? Because your privacy is paramount. We don't collect your personal information or store your chat history; we focus solely on providing you with a secure and reliable private chat space. With Tarsier, you can express yourself freely and communicate freely. Whether sharing private photos with family, discussing sensitive topics with friends, or discussing business secrets with colleagues, you can do so with peace of mind. **Download Tarsier now and experience unprecedented security and freedom!**
Screenshots
Verdict
The clearest difference is ratings volume: Tarsier at 6 against CollaChat's 1. On price, rating, review sentiment and update cadence 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 Tarsier. That said, the two scores are not equally well evidenced: Tarsier has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
CollaChat ships an update every 2 months, Tarsier monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | CollaChat | Tarsier |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (6 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 288 MB | 28 MB |
| Age rating | 4+ | 17+ |
| Developer | CURL TECH PTE. LTD. | 奇 莫 |
Customer experience
CollaChat
Tarsier
In-app purchases
CollaChat
No in-app purchases
Tarsier
No in-app purchases








