Comparison

CollaChat vs ZERO Messenger

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

ZERO Messenger

A secure and private messaging app built on decentralized architecture. It offers end-to-end encryption, Web3 integration, and no ads or surveillance. Reclaim your digital rights with this free, anonymous communication tool.

Highlights
  • Decentralized architecture
  • End-to-end encryption
  • Web3 wallet login
  • Token-gated chats
  • Cross-device access
  • No phone number required
  • Sleek and minimal design
Features
Read full description

Decentralized messaging for everyone. ZERO Messenger is secure, private, and free. No ads, no surveillance – reclaim your digital rights with ZERO. Decentralized - ZERO Messenger is built on decentralized architecture. Encrypted data is hosted on and shared between ZODEs; you can choose which ZODE will host your account, or you can run one of your own! Private - All conversations are end-to-end encrypted. No ads, no surveillance, completely anonymous; users are not required to provide personal data to create an account. Web3-Native - ZERO Messenger boasts Web3 (Ethereum) wallet login, identity verification with ZERO ID, the ability to create and join token-gated chats, and more. All Your Devices - Available on Web and Mobile. Access your conversations on all your devices. Secure Conversations of Any Size - Collaborate and share with individuals or groups of people in private, encrypted conversations. No Phone Number Required - Sign up with an Ethereum wallet and verify your identity with a ZERO ID. Sleek and Minimal - Designed with simplicity and ease of use in mind. Who are we? ZERO is a small startup empowering the citizens of our digital age with Web3 and decentralized technology. ZERO apps are built according to our values: Sovereignty, Decentralization, Security, Open Source, and Censorship Resistance.

Screenshots

CollaChat4 screens
ZERO Messenger4 screens

Verdict

The call

The clearest difference is update cadence: ZERO Messenger at weekly against CollaChat's every 2 months. ZERO Messenger also leads on ratings volume (15 vs 1). CollaChat's advantage is review sentiment (100% vs 78%) and rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

CollaChat holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: ZERO Messenger has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of CollaChat's written reviews are positive against 78% of ZERO Messenger's.

UpkeepUpdate frequency

CollaChat ships an update every 2 months, ZERO Messenger weekly. The most recent releases landed on September 19, 2026 and July 8, 2026 respectively.

Scorecard6 real differences · 4 level
CollaChat versus ZERO Messenger: the parameters behind the verdict, then further details
ParameterCollaChatZERO Messenger
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (15 ratings)
Positive reviews100.0% of reviews — better77.8% of reviews
Number of ratings115 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS14.0 — better18.5
Further details — not scored
Size288 MB248 MB
Age rating4+4+
DeveloperCURL TECH PTE. LTD.Zero to Infinity, Inc.

Customer experience

CollaChat

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

ZERO Messenger

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews9 reviews
Positive77.8%
Neutral0.0%
Negative22.2%

In-app purchases

None

CollaChat

No in-app purchases

None

ZERO Messenger

No in-app purchases

Questions

Is CollaChat free?
CollaChat is free to download, with no in-app purchases.
Is ZERO Messenger free?
ZERO Messenger is free to download, with no in-app purchases.
Which has better reviews, CollaChat or ZERO Messenger?
CollaChat is rated higher. CollaChat averages 5.0 out of 5 from 1 ratings, while ZERO Messenger averages 4.7 from 15 ratings.
Do CollaChat or ZERO Messenger have ads?
Neither CollaChat nor ZERO Messenger shows ads.
Which is updated more often, CollaChat or ZERO Messenger?
CollaChat ships an update every 2 months, and ZERO Messenger weekly. Most recently, CollaChat was updated on September 19, 2026 and ZERO Messenger on July 8, 2026.

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