Oventrop vs ECAP
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.
ECAP
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ECAP is the tool for electricians who document electrical installations to the IEC 60364 standard – fast, structured and offline. Build your installation in a clear hierarchy: installation → building → room → distribution board → circuit. Everything you register turns into finished reports with a single tap. FEATURES • Circuit schedule with all relevant columns (amperage, characteristic, cross-section, cable, RCD, labeling) • Single-line diagram with IEC symbols – complete, riser or per branch • GPS map of all installations, buildings and rooms • PDF reports: complete documentation, circuit schedule, riser diagram, QR labels • Scan a circuit schedule with your camera – AI reads it and creates the circuits automatically • Offline-first – works without internet, syncs when you're back online • Share installations with colleagues or work together in a company with role control • Automatic labeling and phase balance ECAP keeps your documentation in order so you can spend your time on the job. Stored safely, synced across your devices. Available in Norwegian, English, Swedish and Danish.
Screenshots
Verdict
The clearest difference is in-app purchases: Oventrop at none against ECAP's 3. ECAP's advantage is update cadence (every 2 days vs monthly). On price, ads, device support and iOS requirement 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. ECAP sells 3 in-app purchases, starting at $4.99 per 7 days. Oventrop asks for nothing beyond the download.
Oventrop ships an update monthly, ECAP every 2 days. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.
| Parameter | Oventrop | ECAP |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 44.4% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Oventrop GmbH & Co. KG | VEGARD HELLAND BU |
In-app purchases
Oventrop
No in-app purchases
ECAP
- ECAP Pro$4.997 Days
- ECAP Pro$12.991 Month
- ECAP Pro$89.991 Year









