Comparison

HeatNext vs Clausius BT

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

Head to head

HeatNext Heating App

Seltron Thermostats app

Free

🔧 Utilities

No ratingsView app →

About

HeatNext

Features

Read full description

HeatNext is a friendly app that allows you to remotely manage your home heating system using your mobile device. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.

About

Clausius BT

Features

Read full description

Clausius BT app enables you to have a complete control over heating or cooling. The app is compatible with Seltron room thermostats RT.. and WT.. and a room unit RCD20. They connect with the app via Bluetooth. The app lets you: - set a desired setpoint temperature - adjust a heating or cooling schedule - set user functions - turn heating or cooling on or off - detect and help troubleshoot issues. For any questions or feedback contact us at support@seltron.si.

Screenshots

HeatNext4 screens

Clausius BT4 screens

Verdict

The call

The clearest difference is in-app purchases: Clausius BT at none against HeatNext's 1. Clausius BT also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads 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. HeatNext sells 1 in-app purchase, starting at $22.90 per year. Clausius BT asks for nothing beyond the download.

UpkeepUpdate frequency

HeatNext ships an update every 5 weeks, Clausius BT every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 4 level

HeatNext versus Clausius BT: the parameters behind the verdict, then further details
Parameter	HeatNext	Clausius BT
Price	Free	Free
Update frequency	Every 5 weeks — better	Every 2 months
Ads	No	No
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	13.0 — better
Further details — not scored
Size	46 MB	21 MB
Age rating	4+	4+
Developer	Nomnio	SELTRON d.o.o.

In-app purchases

1 purchases

HeatNext

Subscriptions1

Plus Package$22.901 Year

None

Clausius BT

No in-app purchases

Questions

Is HeatNext free?

HeatNext is free to download, with in-app purchases available.

Is Clausius BT free?

Clausius BT is free to download, with no in-app purchases.

Do HeatNext or Clausius BT have ads?

Neither HeatNext nor Clausius BT shows ads.

Which is updated more often, HeatNext or Clausius BT?

HeatNext ships an update every 5 weeks, and Clausius BT every 2 months. Most recently, HeatNext was updated on November 6, 2026 and Clausius BT on November 3, 2026.