Privi vs CollaChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Privi
A secure platform for private communication where all data is encrypted before leaving your device. Your personal information is only shared with your contacts, ensuring complete privacy from third parties. Communicate freely without fear of eavesdropping or data breaches.
- End-to-end encryption
- Private contact sharing
- No central identity database
- Secure communication
- User privacy focused
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Privi is a secure platform for private communications. All data is encrypted before leaving your device and is safe from eavesdropping. Any personal information you wish to provide is only shared with your contacts, no one else can see that information, not even us. There is no central database of identities to search. Communicate freely. Terms of Use and Privacy Policy: http://about.pri.vi/Terms&Privacy.html
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
Screenshots
Verdict
The clearest difference is in-app purchases: CollaChat at none against Privi's 2. Privi's advantage is ratings volume (6 vs 1) and iOS requirement (12.0 vs 14.0). On price, rating, update cadence and ads 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. Privi sells 2 in-app purchases, starting at $0.99 per month. CollaChat asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Privi against 5.0 for CollaChat. That said, the two scores are not equally well evidenced: Privi has 6 ratings behind it against 1, so its average is the more settled of the two.
Privi ships an update monthly, CollaChat every 2 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | Privi | CollaChat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 6 — better | 1 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 47 MB | 288 MB |
| Age rating | 4+ | 4+ |
| Developer | Stochastic Systems LLC | CURL TECH PTE. LTD. |
Customer experience
Privi
CollaChat
In-app purchases
Privi
- Basic Subscription$0.991 Month
- Standard subscription$2.991 Month
CollaChat
No in-app purchases









