Comparison

DEVI Smart vs UniFi Access

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

Head to head
About

DEVI Smart

This app allows wireless control of electric floor heating systems via a mobile device. It offers remote adjustment, scheduling, and energy-saving features for multiple thermostats and locations, with secure cloud connectivity.

Highlights
  • Wireless control of electric floor heating
  • Remote adjustment from anywhere
  • Energy-saving scheduling
  • Control multiple thermostats and locations
  • Local operation without internet
  • Frost protection and vacation settings
  • Secure cloud connection
Read full description

DEVIsmart™ application provides its users with possibility to wireless control of electric floor heating systems equipped with DEVIreg™ Smart thermostat. The app turns your mobile device into an intuitive floor heating remote control. With new DEVIsmart™ App you can control as many DEVIreg™ Smart thermostats and locations as you choose. Safe and private cloud connection The Mobile app control communicates through a safe cloud system based on the same security that is used in mobile banking applications. No data is stored in the cloud and your personal information is secure at all times. Adjust your floor heating from your smartphone Adjust home heating easily and intuitively with the remote control you know the best – via the internet. If the internet goes down, you can still operate locally without internet connection. Schedule your home heating and save energy Control all your thermostats in multiple locations The new Danfoss mobile app lets you stay in control and operate all your thermostats in multiple locations from one single point of access. Reduce energy costs Smart app features let you schedule your floor heating system to fit your rhythm and reduce energy costs. The DEVIreg™ Smart thermostat even adapts to climatic conditions and learns when to start and shut off heating. Save energy by following your scheduled heating demands and automatically lowering the temperature when you do not need it. Easily set the temperature to fit your rhythm and enjoy superior thermal comfort. DEVIsmart™ App features: • Adjust home heating from anywhere in the world • Set up/operate floor heating locally without internet connection • Use living zone to easy control the most used thermostats • Control thermostats in multiple locations (e.g. holiday home) • Frost protection, weekly schedule, away/vacation settings, and economy mode • Receive notifications/warnings about important system events • Access dedicated support and troubleshooting directly from the app • Secure wireless communication through a safe cloud system based on the same security that is used in mobile banking applications. No data is stored in the cloud and your customers’ personal information is secure at all times.

About

UniFi Access

Manage your entire access control system remotely. Oversee doors, users, readers, and security policies. View real-time activity logs and receive doorbell notifications.

Highlights
  • Manage connected doors and security policies
  • Oversee user rosters and access methods
  • Configure reader devices and greeting messages
  • View real-time access event logs
  • Receive doorbell notifications
  • Grant remote access to visitors
Features
Read full description

The UniFi Access mobile app is a convenient, comprehensive management tool that allows you and other administrators to oversee every aspect of your Access system, including connected doors, user rosters, reader devices, access cards, and security policies. With the app, you can also view real-time access event logs to maintain full vantage of visitor and employee traffic throughout your workspace. [Doorbell] Receive a push notification when someone rings a connected doorbell. [Remote View] Greet visitors remotely with the UA Pro, then grant them access remotely. [Devices] Add new Access devices and configure a variety of settings, including greeting messages, broadcast names, digital keypad layout, volume, and display brightness. [Doors] Manage individual doors or group them to instantly make sweeping security alterations on the fly. You can also apply door and floor-specific access policies for enhanced building security. [Users] Add, edit, and remove users with ease. You can also assign individual and group-level access methods, such as PIN codes or UA Cards. [Activities] Review detailed access logs and card reader video captures to track on-premises activity anywhere, anytime. [Cards] Utilize existing NFC cards or assign new UA Cards to system users.

Screenshots

DEVI Smart4 screens
UniFi Access4 screens

Verdict

The call

The clearest difference is review sentiment: UniFi Access at 60% against DEVI Smart's 14%. UniFi Access also leads on rating (4.9 vs 2.0) and update cadence (every 2 weeks vs every 4 months). DEVI Smart's advantage is iOS requirement (11.0 vs 17.0). 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

UniFi Access holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: UniFi Access has 4.6K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 14% of DEVI Smart's written reviews are positive against 60% of UniFi Access's.

UpkeepUpdate frequency

DEVI Smart ships an update every 4 months, UniFi Access every 2 weeks. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 5 level
DEVI Smart versus UniFi Access: the parameters behind the verdict, then further details
ParameterDEVI SmartUniFi Access
PriceFreeFree
Rating2.0 (6 ratings)4.9 (4.6K ratings) — better
Positive reviews13.9% of reviews59.8% of reviews — better
Number of ratings64.6K — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size77 MB280 MB
Age rating4+4+
DeveloperDanfoss A/SUbiquiti Inc.

Customer experience

DEVI Smart

All ratings6 ratings
Positive16.7%
Neutral0.0%
Negative83.3%
Written reviews115 reviews
Positive13.9%
Neutral4.3%
Negative81.7%

UniFi Access

All ratings4,586 ratings
Positive98.8%
Neutral0.5%
Negative0.8%
Written reviews82 reviews
Positive59.8%
Neutral6.1%
Negative34.1%

Bugs and requests

DEVI Smart

Not enough reviews yet to summarise bugs or requests.

UniFi Access

Reported bugs

4 issues
  • App crashes on launch
  • Notifications not working
  • Remote login issues
  • Outdated information in app

Requested features

4 requests
  • Integrate with Unifi Protect
  • Add schedule management in app
  • Allow door hold open/timer controls
  • Improve camera/intercom integration

In-app purchases

None

DEVI Smart

No in-app purchases

None

UniFi Access

No in-app purchases

Questions

Is DEVI Smart free?
DEVI Smart is free to download, with no in-app purchases.
Is UniFi Access free?
UniFi Access is free to download, with no in-app purchases.
Which has better reviews, DEVI Smart or UniFi Access?
UniFi Access is rated higher. DEVI Smart averages 2.0 out of 5 from 6 ratings, while UniFi Access averages 4.9 from 4.6K ratings.
Do DEVI Smart or UniFi Access have ads?
Neither DEVI Smart nor UniFi Access shows ads.
Which is updated more often, DEVI Smart or UniFi Access?
DEVI Smart ships an update every 4 months, and UniFi Access every 2 weeks. Most recently, DEVI Smart was updated on September 29, 2026 and UniFi Access on October 2, 2026.

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