Oventrop vs wibutler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
wibutler
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Oventrop ships an update monthly, wibutler every 3 weeks. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.
| Parameter | Oventrop | wibutler |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 44.4% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Oventrop GmbH & Co. KG | DBT Digital Building Technology GmbH & Co. KG |
In-app purchases
Oventrop
No in-app purchases
wibutler
No in-app purchases









