Comparison

Oventrop vs wibutler

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

wibutler

Features
Read full description

wibutler – just live wibutler is the smart home solution for your home. From heating to lighting: This gateway makes your home smart and safe in just a view steps. Always according to you needs, your personal pace and your individual budget. The gateway The gateway is the centrepiece of your smart home. It makes your smart devices communicate with each other, by translating their radio protocols. wibutler knows many languages, which makes the gateway extremely compatible. The following radio protocols are supported: WLAN, Z-Wave, EnOcean and Zigbee. The wibutler app Control your home via wibutler app with your smartphone or tablet. Manage profiles, create smart automation rules and get an overview of your energy consumptions. You do not want to control your complete home via smartphone at all times? No problem! Use smart buttons and switches to interact with your devices.

Screenshots

Oventrop4 screens
wibutler4 screens

Verdict

The call

Oventrop and wibutler are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Oventrop ships an update monthly, wibutler every 3 weeks. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

ScorecardNo meaningful differences
Oventrop versus wibutler: the parameters behind the verdict, then further details
ParameterOventropwibutler
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings1 — better—
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size48 MB54 MB
Age rating4+4+
DeveloperOventrop GmbH & Co. KGDBT Digital Building Technology GmbH & Co. KG

In-app purchases

None

Oventrop

No in-app purchases

None

wibutler

No in-app purchases

Questions

Is Oventrop free?
Oventrop is free to download, with no in-app purchases.
Is wibutler free?
wibutler is free to download, with no in-app purchases.
Do Oventrop or wibutler have ads?
Neither Oventrop nor wibutler shows ads.
Which is updated more often, Oventrop or wibutler?
Oventrop ships an update monthly, and wibutler every 3 weeks. Most recently, Oventrop was updated on September 10, 2026 and wibutler on September 11, 2026.

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