ZEHNDER Control vs Topomapviewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZEHNDER Control
Control and program your Zehnder radiators directly from your smartphone or tablet using Bluetooth technology. Ensure a comfortable and healthy room climate with this energy-efficient solution.
- Bluetooth radiator programming
- Smartphone and tablet control
- Room climate management
- Energy efficiency optimization
- Comfortable living environment
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As a supplier of solutions to ensure a comfortable, healthy room climate, combining economy and superior energy efficiency, Zehnder gives you the option of using and programming your ZEHNDER radiators using Bluetooth technology from your smartphone and/or tablet. It is important to update your phone or tablet with the latest version of IoS to ensure the app works correctly.
Topomapviewer
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The Topomapviewer is an application that allows you to view the standard topographic maps and aerial photographs of the National Geographic Institute of Belgium. Measure distances, print a pdf version, send comments about mistakes on the map. Import and share gpx trails and discover our beautiful country.
Screenshots
Verdict
The clearest difference is update cadence: Topomapviewer at every 2 weeks against ZEHNDER Control's every 12 months. ZEHNDER Control's advantage is iOS requirement (13.0 vs 15.0). On price, ads, 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.
ZEHNDER Control ships an update every 12 months, Topomapviewer every 2 weeks. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.
| Parameter | ZEHNDER Control | Topomapviewer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Every 12 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 63 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | ZEHNDER GROUP FRANCE | NGI-IGN National Geograhical Institute of Belgium |
In-app purchases
ZEHNDER Control
No in-app purchases
Topomapviewer
No in-app purchases




