Comparison

RealVNC Viewer vs CADIO

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

CADIO

This platform offers comprehensive control over a wide range of smart home devices. Manage devices locally or via the cloud, set schedules, and receive notifications. Supports voice control and integration with popular smart home ecosystems.

Highlights
  • Easy device configuration
  • Local and cloud control
  • Unlimited device support
  • Device linking with sensors
  • Timers and schedules
  • Voice control
  • Google Home & Alexa integration
Features
Read full description

CADIO Is Complete Home Automation Platform. You Can Control Any "Supported By CADIO" Smart Home devices. CADIO Main Features : - Very Easy Device Configuration. - Control Over Local WiFi Network. - Control Over CADIO Cloud. - New CADIO Hybrid Interface. - Unlimited Number Of Devices Can Be Added. - Support Devices On Different Networks. - Units/Groups View. - Notifications For Every Device. - ON/OFF Devices. - Dimmer Devices. - RGB Devices. - Shutters. - IR Devices. - Fan Speed Regulator. - Digital Humidity/Temperature Devices. - Digital Sensors - 433MHZ Sensors. - Linking Devices With Sensors/Humidity/Temperature. - Timers. - Schedules. - Sync With Physical Power Switches. - 433MHZ Remote Controller Support. - Infrared Remote Controller Support. - Overheat Protection/Alarms. - Pin-Code Security For Every Device. - CADIO Voice Control (English & Arabic). - Multi-Languages Interface (English & Arabic). - Integrated With Google Home (CADIO Action). - Integrated With Amazon Alexa (CADIO Skill). - Integrated with Home Assistant (CADIO API). CADIO Is Designed With A Great Ambition To Give You High Quality Smart Home Experience, So Enjoy Using CADIO And Please Don't Deprive Us Of Your Feedback.

Screenshots

RealVNC Viewer4 screens
CADIO4 screens

Verdict

The call

The clearest difference is review sentiment: RealVNC Viewer at 72% against CADIO's 0%. RealVNC Viewer also leads on in-app purchases (none vs 2) and ads (none vs shown). CADIO's advantage is rating (5.0 vs 4.8) and update cadence (every 4 weeks vs every 2 months). On price 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. CADIO sells 2 one-off in-app purchases. RealVNC Viewer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CADIO holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: RealVNC Viewer has 15K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 72% of RealVNC Viewer's written reviews are positive against 0% of CADIO's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

RealVNC Viewer ships an update every 2 months, CADIO every 4 weeks. The most recent releases landed on October 29, 2026 and October 9, 2026 respectively.

Scorecard8 real differences · 2 level
RealVNC Viewer versus CADIO: the parameters behind the verdict, then further details
ParameterRealVNC ViewerCADIO
PriceFreeFree
Rating4.8 (15K ratings)5.0 (1 ratings) — better
Positive reviews72.3% of reviews — better0.0% of reviews
Number of ratings15K — better1
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013 — better
Further details — not scored
Size9 MB35 MB
Age rating4+17+
DeveloperRealVNCMohamed Rashad

Customer experience

RealVNC Viewer

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

CADIO

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

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

CADIO

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

RealVNC Viewer

No in-app purchases

2 purchases

CADIO

One-time2
  • Permanent License$5.99
  • Permanent License$7.99

Questions

Is RealVNC Viewer free?
RealVNC Viewer is free to download, with no in-app purchases.
Is CADIO free?
CADIO is free to download, with in-app purchases available.
Which has better reviews, RealVNC Viewer or CADIO?
CADIO is rated higher. RealVNC Viewer averages 4.8 out of 5 from 15K ratings, while CADIO averages 5.0 from 1 ratings.
Do RealVNC Viewer or CADIO have ads?
CADIO shows ads; RealVNC Viewer does not.
Which is updated more often, RealVNC Viewer or CADIO?
RealVNC Viewer ships an update every 2 months, and CADIO every 4 weeks. Most recently, RealVNC Viewer was updated on October 29, 2026 and CADIO on October 9, 2026.

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