Comparison

CollaChat vs UZER

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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

About

UZER

Read full description

Uzer is simple, reliable, and private, so you can easily keep in touch with your friends and family. Your personal messages and calls to friends and family are end-to-end encrypted. No one outside of your chats, not even Uzer Team, can read or listen to them. Simple and secure connections, right away All you need is your phone number, no user names or logins. You can quickly view your contacts who are on UZER and start messaging.

Screenshots

CollaChat4 screens
UZER4 screens

Verdict

The call

The clearest difference is update cadence: CollaChat at every 2 months against UZER's every 5 months. UZER's advantage is iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CollaChat ships an update every 2 months, UZER every 5 months. The most recent releases landed on September 19, 2026 and September 26, 2026 respectively.

Scorecard2 real differences · 8 level
CollaChat versus UZER: the parameters behind the verdict, then further details
ParameterCollaChatUZER
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size288 MB129 MB
Age rating4+4+
DeveloperCURL TECH PTE. LTD.Hasan Hamed Mahmood Alhusseini

In-app purchases

None

CollaChat

No in-app purchases

None

UZER

No in-app purchases

Questions

Is CollaChat free?
CollaChat is free to download, with no in-app purchases.
Is UZER free?
UZER is free to download, with no in-app purchases.
Do CollaChat or UZER have ads?
Neither CollaChat nor UZER shows ads.
Which is updated more often, CollaChat or UZER?
CollaChat ships an update every 2 months, and UZER every 5 months. Most recently, CollaChat was updated on September 19, 2026 and UZER on September 26, 2026.

Other comparisons