HT400 vs Airfel Scala
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HT400
This smart thermostat app allows you to remotely control your home's temperature with precise accuracy. Save on energy bills by creating custom schedules and utilizing intelligent modes. Monitor historical data and manage multiple homes or family members from a single application.
- Remote temperature control worldwide
- Daily/weekly program creation
- Six distinct control modes
- Location-based temperature adjustment
- Historical heating reports
- Multi-home and family sharing
Read full descriptionHide full description
How does HT 400 SMART ROOM THERMOSTAT WORKS? HT 400 Smart room thermostat with its 0,1-degree measurement accuracy sets your home temperature via application as you desired. You can save up to %30 of your gas bill by preventing boiler work unnecessary. What are the advantages of HT 400 Smart Room Thermostat? - With Smart room thermostat, you can control your home temperature by app wherever you are in the world. - Create daily or weekly programs easily by your Smart Room Thermostat App. - You can choose one of the 6 different modes which suit your situation and control your home temperature. (Home Mode-Sleep Mode-Outside Mode-Program Mode-Location Mode-Manual Mode) - Using Location Mode reduces the temperature of your home when you move away from home or increases the temperature when you approach your home. - Depending on the date range selected from the smart room thermostat's mobile application, you can get a historical report of your heating unit's working hours, the temperature of your home and the outside temperature gracefully. - You can add more than one home to your app and can control all with one app. - You can invite your family members to app and share control of your home. - HT 400 Smart Room Thermostat is only compatible with On/Off boilers.
Airfel Scala
Control compatible Airfel combi boilers remotely using your smart device. Adjust settings and manage your home's heating system from anywhere.
- Remote boiler control
- Smart device integration
- Heating system management
- Adjustable settings
Read full descriptionHide full description
Airfel Scala allows you to control compatible Airfel combi boilers with smart devices.
Screenshots
Verdict
The clearest difference is review sentiment: Airfel Scala at 19% against HT400's 0%. HT400's advantage is iOS requirement (8.0 vs 15.1). On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HT400 ships an update every 3 months, Airfel Scala every 2 months. Both last shipped on November 3, 2026.
| Parameter | HT400 | Airfel Scala |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 19.4% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 28 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | ISIPARK IC VE DIS TICARET INSAAT ISITMA SISTEMLERI OTOMOTIV SANAYI ANONIM SIRKETI | Daikin Turkiye |
Customer experience
HT400
Airfel Scala
In-app purchases
HT400
No in-app purchases
Airfel Scala
No in-app purchases
Questions
Is HT400 free?
Is Airfel Scala free?
Do HT400 or Airfel Scala have ads?
Which is updated more often, HT400 or Airfel Scala?
Other comparisons
