Comparison

Oventrop vs blossomic

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

Head to head
About

Oventrop

This app assists with the design, calculation, and documentation of hydronic balancing for heating systems. It supports various standards and regulations, enabling users to calculate valve presets, heating loads, and radiator sizes. Documentation can be generated in PDF format or printed wirelessly.

Highlights
  • Project design with calculations (VdZ, BEG)
  • Heating check according to EnSimiMaV and DIN SPEC 15378
  • OV-DMC 3 measuring system integration
  • Simplified heating load calculation (DIN 12831)
  • DIN radiator and thermostatic valve sizing
  • ErP energy efficiency label creation
  • PDF documentation and wireless printing
Features
Read full description

Functions: • Project design incl. calculations for procedure A or B (VdZ, BEG) • Heating check according to EnSimiMaV und DIN SPEC 15378:2018-08 • OV-DMC 3 measuring system for adjustment/control measurement in heating and cooling systems • With valve identification for the new double regulating valves HydroControl and HydroCom • Simplified heating load calculation according to DIN 12831 • DIN radiator sizing (existing or new) • Sizing of thermostatic valves • Sizing of double regulating valves • Creation of ErP energy efficiency label • Unit converter • Oventrop News • Oventrop Contact Oventrop GmbH & Co. KG offers an app to support the execution and documentation of the hydronic balancing of heating systems. Whether on the construction site, at a consultation appointment or in the office, users of the OVapp can calculate the preset values of the Oventrop thermostatic valves and regulating and pipeline valves at any time with their smartphone or tablet and thus easily carry out the hydronic balancing of heating systems. In addition, a simplified heating load calculation according to DIN EN 12831-B3 or a radiator sizing with DIN radiators is integrated. The OVapp can be used to fulfil the requirements of procedure A and B of the VdZ form (individual measure) for hydronic balancing within the framework of the Federal Funding for efficient buildings (BEG) for existing buildings - procedure B is possible when using the Q-Tech thermostatic valves with flow control. The calculations can be documented using a PDF file or WLAN printer. The VdZ form is filled out automatically according to the designs. Furthermore, the OV-DMC 3 measuring system for the adjustment and control of heating and cooling systems is integrated. Pressure measurements can be carried out easily with the OVapp and the measuring sensor, flow values can be determined and presettings for the desired volume flows can be determined. With the ErP wizard there is the possibility to create ErP energy efficiency labels as composite labels for Oventrop products in the field of solar thermal energy. Furthermore, an extensive manufacturer product database of the VdZ with ErP-relevant products can be accessed.

About

blossomic

Control your heating system remotely with this app. It offers three pre-set heating programs and uses motion sensors to automatically adjust temperature based on occupancy, saving energy and enhancing comfort.

Highlights
  • Remote heating control
  • Three heating programs (Comfort, Economy, Night)
  • Motion sensor integration
  • Automatic temperature adjustment
  • Intuitive user interface
  • Supports various heating systems
Features
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Die blossomic Hybrid-App macht Ihre Heizungsanlage mit den blossom-ic Komponenten zur App-fähigen Heizungssteuerung. Steuern Sie Ihre Heizung komfortabel zu jeder Zeit, überall. Weniger ist mehr. Es gibt 3 Heizprogramme (Comfort, Economy und Nachtabsenkung) mit automatischen Einstellungen. Jeder Thermostat ist mit einem Bewegungssensor ausgestattet. Der Sensor ergänzt Ihre individuell eingestellten Heizzeiten. Wenn Sie früher als in der App eingestellt nach Hause kommen, erkennt der Sensor das und heizt automatisch. (höherer Komfort) Wenn Sie das Haus verlassen und vergessen haben die Temperatur in Ihrem Haus oder Wohnung anzupassen, übernimmt das unser Sensor-Thermostat indem der Sensor keine Präsens wahrnimmt und in den Economy-Modus wechselt. (Kosten sparend) Somit ist eine ständige Korrektur der Heizprogramme und der Heizzeiten über die App oder über die Thermostate nicht notwendig. Entdecken Sie die einfache und intuitive Bedienoberfläche mit der Sie alle blossom-ic Systeme steuern können. Alles aus einer Hand: Heizkörpersteuerung Fußbodenheizungssteuerung Kesselsteuerung Etagen-/ Einrohrheizungssteuerung Für weitere Informationen besuchen Sie unsere Homepage www.blossomic.de ------------------------------------------------------------ The blossomic hybrid app makes your heating system with the blossom-ic components the heating control capable of ex app. Steer your heating comfortably at any time and everywhere. Less is more. We have only 3 heating programes (Comfort, Economy and night setback) with automatic settings. Every thermostat is equipped with a motion sensor. The sensor complements your individually opposed heating times. If you come earlier home as you have put into the app, the sensor recognizes this and heats automatically. (higher comfort) If you have left the house and forgotten to adapt the temperature in your house or flat, our sensor thermostat regulates the temperature down to the economy-temperature because the sensor recognizes nobody. (Cost save) Therefore is a constant correction of the heating programes and the heating times about the app or about the thermostats not necessary. Discover the easy and intuitive operating surface with you can steer every blossom-ic system. we offer everything from one source: radiator control underfloor heating control boiler control floor control For further information visit our homepage www.blossomic.de

Screenshots

Oventrop4 screens
blossomic4 screens

Verdict

The call

The clearest difference is review sentiment: Oventrop at 44% against blossomic's 23%. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 29, 2026 and October 12, 2026 respectively.

Scorecard1 real difference · 9 level
Oventrop versus blossomic: the parameters behind the verdict, then further details
ParameterOventropblossomic
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews44.4% of reviews — better22.7% of reviews
Number of ratings1 — better—
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size48 MB8 MB
Age rating4+4+
DeveloperOventrop GmbH & Co. KGJifuh Sheen

Customer experience

Oventrop

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews18 reviews
Positive44.4%
Neutral22.2%
Negative33.3%

blossomic

Written reviews22 reviews
Positive22.7%
Neutral9.1%
Negative68.2%

In-app purchases

None

Oventrop

No in-app purchases

None

blossomic

No in-app purchases

Questions

Is Oventrop free?
Oventrop is free to download, with no in-app purchases.
Is blossomic free?
blossomic is free to download, with no in-app purchases.
Do Oventrop or blossomic have ads?
Neither Oventrop nor blossomic shows ads.
Which is updated more often, Oventrop or blossomic?
Oventrop ships an update monthly, and blossomic monthly. Most recently, Oventrop was updated on September 29, 2026 and blossomic on October 12, 2026.

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