Roth Touchline⁺ vs Conversion Buddy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Roth Touchline⁺
Control your floor heating system remotely via Wi-Fi or the internet. Monitor temperatures, adjust settings, and manage multiple controllers across different locations from a single app. Supports quick login and easy setup for multiple users.
- Remote temperature control
- Adjust set points
- Change system modes
- Manage multiple controllers
- Quick login
- Multi-user setup
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Roth Touchline⁺ App enables you to control your floor heating system either via Wi-Fi when you are at home or via the internet when you are abroad. Once the system has been setup for App control, it is possible for you to see actual temperatures, to change set points and to check and change the mode of operation of the complete system or each single room. With this new Touchline⁺ App, you are able to control more than one controller and you can have controllers placed on several locations controlled by the same App. You will get a nice overview of all your controllers (which you can name) and by pressing the specific controller, you will connect safely via our Roth portal server. Functions: * Quick login on already registered controllers if you save your password at first login. * Same login on all your saved controllers if you want. * System mode can easily be changed from the overview of the controllers. * Easy and foreseeable setting of both the room temperature and room mode. * Possibility to sort the favorite list to place the most used controllers or rooms in the top. * Quick access to all functions via drop-down menu. * Easy set-up when more users are required. * New and improved help menu. First setup of the system must be done locally on the Wi-Fi network where both controller and smart device are connected. This goes for all controllers at all locations. The App supports the following languages: English, Danish, Dutch, Finnish, French, German, Norwegian, Polish, Portuguese, Romanian, Spanish and Swedish. You can find more information at www.roth-nordic.com
Conversion Buddy
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Fully free to use — no subscriptions or hidden costs. Conversion Buddy is an everyday unit converter designed to do more than give you a number. It combines accurate conversions with memorable examples, practical reference tables and simple explanations, helping unfamiliar measurements make sense. CONVERT EVERYDAY UNITS Enter one value and instantly see useful equivalents for temperature, distance, height, weight, speed, area, volume, cooking, fuel economy, tyre/tire pressure and more. UNDERSTAND WHAT THE NUMBERS MEAN Use familiar everyday examples to make unfamiliar measurements easier to picture — such as 20°C = 68°F, 30 mph ≈ 48 km/h and 180 cm ≈ 5 ft 11 in. USE PRACTICAL REFERENCE TABLES Start with the units you recognise and switch direction whenever you need to. Compare centimetres and feet, kilograms and pounds, kilometres and miles, mph and km/h, bar and psi, square metres and square feet, litres and pints, and more. Each table uses clear, rounded starting values so it works as a quick reference rather than just another calculator. SAVE YOUR OWN VALUES Keep useful personal references in My Data, including heights, baggage allowances, tyre/tire pressures, room sizes, cooking measurements and other values you use regularly. Add a name, group and notes, and pin important values for quick access. CHOOSE THE UNITS THAT FEEL FAMILIAR Choose UK Mixed, USA or Metric preferences so Conversion Buddy starts with units that make sense where you live or travel. EXPLORE THE STORIES BEHIND MEASUREMENTS Discover why 5 ft 4 in is not 5.4 ft, why UK and US pints are different, why lower L/100 km means better fuel economy, and why horses are measured in hands. SIMPLE BY DESIGN • No account required • Core conversion tools work offline • Designed natively for iPhone • Saved values are stored locally on your device • Fully free to use — no subscriptions or hidden costs* *Small adverts are shown to help support development and keep Conversion Buddy free. Conversions, examples and reference values are provided as practical everyday guidance. Always check official, medical, safety-critical, legal or product-specific information where accuracy matters. *This app is fully free to use with no subscriptions or hidden costs. Small adverts are shown to help support development and keep the app free.
Screenshots
Verdict
The clearest difference is ads: Roth Touchline⁺ at none against Conversion Buddy's shown. Roth Touchline⁺ also leads on iOS requirement (15.6 vs 18.6). Conversion Buddy's advantage is update cadence (every 4 days vs every 4 months). On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Roth Touchline⁺ ships an update every 4 months, Conversion Buddy every 4 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.
| Parameter | Roth Touchline⁺ | Conversion Buddy |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| Update frequency | Every 4 months | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 4 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Roth North Europe A/S | Thomas Portlock |
In-app purchases
Roth Touchline⁺
No in-app purchases
Conversion Buddy
No in-app purchases
Questions
Is Roth Touchline⁺ free?
Is Conversion Buddy free?
Do Roth Touchline⁺ or Conversion Buddy have ads?
Which is updated more often, Roth Touchline⁺ or Conversion Buddy?
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