Comparison

RealVNC Viewer vs KaChat

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

Head to head
About

RealVNC Viewer

Access and control your Mac, Windows, or Linux computers remotely from any device. View your desktop, use your keyboard and mouse, and manage files securely with end-to-end encryption. Sync connections across all your devices for seamless access.

Highlights
  • Instant remote access to computers
  • Control mouse and keyboard remotely
  • End-to-end session encryption
  • Cloud service for easy connection
  • Backup and sync connections
  • Virtual keyboard with advanced keys
  • Bluetooth keyboard support
Features
Read full description

RealVNC® Viewer from RealVNC® gives you instant remote access to your Mac, Windows and Linux computers from anywhere in the world. You can view your computer's desktop, and control its mouse and keyboard as though you were sitting down in front of it. Download RealVNC Connect to each computer you want to control. Then sign in to RealVNC Viewer on your device using your RealVNC account credentials. You'll see your computers automatically appear; simply tap to connect. RealVNC Connect password-protects each computer out-of-the-box. You may need to enter the same user name and password you use to log in to your computer. All sessions are then encrypted end-to-end. During a session, your device's touch screen serves as a trackpad to give you precise control. Drag your finger to move the remote mouse cursor and tap anywhere to left-click (other gestures such as right-click and scroll are explained in-app). As the original inventors of VNC remote access technology, we're confident you'll love what RealVNC Viewer has to offer. If you're still not convinced, check out our reviews! ===Key features=== - Connect with ease via our cloud service to computers running RealVNC Connect. - Backup and sync your connections between all your devices by signing in to RealVNC Viewer on each one. - A scrolling bar above the virtual keyboard includes advanced keys such as Command/Windows. - Support for Bluetooth keyboards. ===Contact=== We’d love to hear from you: iphone-support@realvnc.com twitter.com/RealVNC facebook.com/realvnc Better still, leave us a review!   ===Terms of Use=== https://static.realvnc.com/media/documents/RealVNCServicesTCs.pdf ===Trademarks=== RealVNC and VNC are trademarks of RealVNC Limited and are protected by trademark registrations and/or pending trademark applications in the European Union, United States of America and other jurisdictions. Protected by UK patents 2481870, 2479756; US patent 8760366; EU patent 2652951.

About

KaChat

This secure messaging app utilizes the Kasia protocol over the KASPA BlockDAG network for instant communication. It offers a private and efficient way to connect with others.

Highlights
  • Secure instant messaging
  • Kasia protocol integration
  • KASPA BlockDAG network
  • Private communication
  • Efficient messaging
Features
Read full description

KaChat is instant messaging app based on Kasia protocol over KASPA BlockDAG network.

Screenshots

RealVNC Viewer4 screens
KaChat4 screens

Verdict

The call

The clearest difference is update cadence: KaChat at every 9 days against RealVNC Viewer's every 2 months. KaChat also leads on review sentiment (94% vs 72%). RealVNC Viewer's advantage is ratings volume (15K vs 39). On price, rating, ads and in-app purchases 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 — 4.8 for RealVNC Viewer against 4.9 for KaChat. That said, the two scores are not equally well evidenced: RealVNC Viewer has 15K ratings behind it against 39, so its average is the more settled of the two. Written reviews are what separate them: 72% of RealVNC Viewer's written reviews are positive against 94% of KaChat's.

UpkeepUpdate frequency

RealVNC Viewer ships an update every 2 months, KaChat every 9 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
RealVNC Viewer versus KaChat: the parameters behind the verdict, then further details
ParameterRealVNC ViewerKaChat
PriceFreeFree
Rating4.8 (15K ratings)4.9 (39 ratings) — better
Positive reviews72.3% of reviews94.4% of reviews — better
Number of ratings15K — better39
Update frequencyEvery 2 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better16.0
Further details — not scored
Size9 MB58 MB
Age rating4+4+
DeveloperRealVNCCyber Ventures LLC

Customer experience

RealVNC Viewer

All ratings15,340 ratings
Positive94.8%
Neutral2.0%
Negative3.1%
Written reviews1,525 reviews
Positive72.3%
Neutral7.1%
Negative20.7%

KaChat

All ratings39 ratings
Positive97.4%
Neutral0.0%
Negative2.6%
Written reviews18 reviews
Positive94.4%
Neutral0.0%
Negative5.6%

Bugs and requests

RealVNC Viewer

Reported bugs

4 issues
  • Cursor and screen synchronization issues
  • Incompatibility with certain macOS and iOS versions
  • Frequent disconnections and login problems
  • Keyboard input not working as expected

Requested features

5 requests
  • Add support for audio streaming
  • Improve clipboard and file transfer functionality
  • Provide better multi-monitor support
  • Allow customization of keyboard and mouse controls
  • Implement a true touch-based interface

KaChat

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

RealVNC Viewer

No in-app purchases

None

KaChat

No in-app purchases

Questions

Is RealVNC Viewer free?
RealVNC Viewer is free to download, with no in-app purchases.
Is KaChat free?
KaChat is free to download, with no in-app purchases.
Which has better reviews, RealVNC Viewer or KaChat?
KaChat is rated higher. RealVNC Viewer averages 4.8 out of 5 from 15K ratings, while KaChat averages 4.9 from 39 ratings.
Do RealVNC Viewer or KaChat have ads?
Neither RealVNC Viewer nor KaChat shows ads.
Which is updated more often, RealVNC Viewer or KaChat?
RealVNC Viewer ships an update every 2 months, and KaChat every 9 days. Most recently, RealVNC Viewer was updated on November 7, 2026 and KaChat on November 5, 2026.

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