Unical Ufly vs HygieneKey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unical Ufly
Control your Unical heating system remotely via smartphone or tablet. Program daily and weekly schedules for heating and hot water, monitor boiler status, and receive push notifications for system errors. Supports multiple profiles for different homes.
- Remote heating system control
- Daily and weekly programming
- Domestic hot water scheduling
- Boiler status monitoring
- Solar system control
- Error history and system reset
- Push notifications for system issues
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Ufly APP allows the Unical heating system to be controlled remotely from a smartphone or tablet. It allows you to programme and control your heating system from a distance via the internet. The software installed inside the boiler will allow you to connect the system to the home Wi-Fi network. Then, thanks to the pairing system integrated in the APP, you can create a perpetual connection between your devices and the boiler itself. If you have more than one home, simply create the necessary profiles and connect to the desired system accordingly. Details of the main functions of the Ufly APP: HEATING and DOMESTIC HOT WATER Programming the heating system and domestic hot water is divided into the following phases: - Daily programming: you can set and rename 5 different "typical days" and each of which can have up to 3 groups of application at 3 different temperatures. - Weekly programming: you can set and rename 3 different "typical weeks" and assign each day of the week one of the previously created daily programs. - Circuit programming: for each circuit, you can associate one of the previously created weekly programs, or one of the default programs of the boiler (Stand-by, Eco, Comfort), or proceed with the manual setting of the system by defining the temperature, date and end time. BOILER You can check the state of the boiler by verifying whether it is activated for the heating system or for the domestic hot water system, in addition to other useful information related to the system. SOLAR You can view the state of the solar heating system, if installed, and turn it on or off. CHECK STATUS You can view the history of the errors generated by the system and RESET the system which will resolve the problem directly by simply restarting the system itself in the case of critical errors. PUSH NOTIFICATIONS If a problem occurs in the system, you will be immediately notified with a push notification and, if the failure is not immediately resolved by RESETTING, you can contact the Technical Assistance and report the displayed error. The APP is available in the following languages: Italian, English, Spanish, French, Russian, Polish, Turkish and Romanian.
HygieneKey
Control smart devices integrated with a special chip through your mobile. Easily program machines, manage schedules, monitor battery, and set refill life. Save and import device settings as profiles for quick setup.
- Profile setting and import
- Battery status indication
- Refill life setting and status
- Working schedule setting
- Normal/Peak time options
- Device reset and service span setting
- Password support
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Hygienekey is a free application which is easy to control all smart devices that integrated with Hygienekey chip. Just several easy touches on the screen of your mobile, the machine can be programmed very quickly, information like working schedule, refill life, refill spec and peak hour, etc. You can also save your settings as a profile and import it for other devices. • Profile setting • Battery status indication • Refill life setting and status indication • Working schedule setting • Normal/Peak time option • Quick button to turn dispenser OFF • Password support • To have a Test application on APP • To Reset the device on APP • Device service span setting • LED ON/OFF setting • Language option: English and Spanish More information on www.hygienekey.com
Screenshots
Verdict
The clearest difference is review sentiment: HygieneKey at 50% against Unical Ufly's 11%. HygieneKey also leads on update cadence (every 2 months vs every 18 months) and iOS requirement (8.0 vs 15.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Unical Ufly ships an update every 18 months, HygieneKey every 2 months. The most recent releases landed on June 4, 2026 and September 8, 2026 respectively.
| Parameter | Unical Ufly | HygieneKey |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 11.1% of reviews | 50.0% of reviews — better |
| Update frequency | Every 18 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | DigiBrain | 春华 赖 |
Customer experience
Unical Ufly
HygieneKey
In-app purchases
Unical Ufly
No in-app purchases
HygieneKey
No in-app purchases









