Comparison

Nova Application vs CollaChat

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

Head to head
About

Nova Application

Securely connect with friends and family through instant messaging, HD voice, and video calls. Enjoy end-to-end encryption for private conversations and share multimedia files. Features include secret chats that self-destruct and easy group creation.

Highlights
  • End-to-end encryption
  • HD voice and video calls
  • Secret chat with self-destructing messages
  • Multimedia file sharing
  • Group chats
  • No international charges
  • Simple and easy interface
Features
Read full description

Nova is a free and secure messanging app available for iOS smartphones. Send and receive messages, HD voice and video calls with your friends and family using your phone's internet connection (4G/3G/2G or Wi-Fi). End-to-end encryption (powered by the open source Signal Protocol) will keep all your communication secured. You dont't have to worry about security anymore. Stay cool and tuned in with your family and friends with a peaceful mind. MAJOR REASONS TO SWITCH TO NOVA: • Simple and easy interface - No more looking up tutorials about how to do something. Nova is straight-forward and very easy to use and get accustomed to. • Your data is YOUR data - Nova doesn't collect any of your data, meaning that you have nothing to worry about. No trackers, no advertising, nothing. Let's talk features- Nova offers: Crystal clear voice call quality - Welcome to the new era of voIP. No more cutting off, or not hearing the other side of the call. Nova allows you to make high definition voice calls with the click of a button. No international charges - Forget about paying for pricy international calls. Nova allows you to avoid all international charges, so you won't have to pay a cent. Multimedia - Nova supports sending multimedia files (images, videos, documents and many more). You can send up to 20MB to anyone using Nova. Secret Chat - Did you ever want to send a temporary message to someone without worrying about deleting it. This is secret chat. Secret chat allows you to send a message to someone, which automatically gets deleted after the chosen time. No history of the message is saved after the message has been deleted. Group chats - Nova allows you to create a group chat with your friends and family at ease without having to forward a message to 20 different people. Always logged in - Forget about memorising passwords and having to log in. With Nova, you are always logged in on your phone. Quickly connect with all your contacts - All your contacts will automatically see you as a contact in Nova. You won't have to put any effort to start your chatting journey on Nova. Note: Your contacts are stored locally, and aren't uploaded to Nova's servers. What are you waiting for! Don't hesitate and make the switch to Nova! NB: Data rates may apply. Contact your internet service provider for more details.

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

Screenshots

Nova Application4 screens
CollaChat4 screens

Verdict

The call

The clearest difference is device support: CollaChat at 4 against Nova Application's 2. On price, rating, ratings volume 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

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

On the App Store both sit at effectively the same score — 5.0 for Nova Application against 5.0 for CollaChat. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 13, 2026 and September 19, 2026 respectively.

Scorecard1 real difference · 9 level
Nova Application versus CollaChat: the parameters behind the verdict, then further details
ParameterNova ApplicationCollaChat
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.0 — better14.0
Further details — not scored
Size53 MB288 MB
Age rating4+4+
DeveloperCYSHIELD FOR TECHNOLOGY SAECURL TECH PTE. LTD.

Customer experience

Nova Application

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

CollaChat

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

In-app purchases

None

Nova Application

No in-app purchases

None

CollaChat

No in-app purchases

Questions

Is Nova Application free?
Nova Application is free to download, with no in-app purchases.
Is CollaChat free?
CollaChat is free to download, with no in-app purchases.
Which has better reviews, Nova Application or CollaChat?
Nova Application and CollaChat are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Nova Application or CollaChat have ads?
Neither Nova Application nor CollaChat shows ads.
Which is updated more often, Nova Application or CollaChat?
Nova Application ships an update every 2 months, and CollaChat every 2 months. Most recently, Nova Application was updated on September 13, 2026 and CollaChat on September 19, 2026.

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