CleanAirOptima vs Zo Gemeld
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CleanAirOptima
Control and monitor your smart air quality devices remotely from anywhere in the world. Set desired temperature and humidity levels, and track air quality across different rooms in your home.
- Remote device control
- Real-time monitoring
- Temperature and humidity tracking
- Room management
- Global access with internet
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Instant access, wherever you go. Connect smart Clean Air Optima devices, control and monitor them from everywhere in the world only through your smartphone. The CleanAirOptima app allows you to take full control of your indoor air quality. Connect your smart Clean Air Optima devices in a couple of taps: - Control and monitor your smart Clean Air Optima devices using this app from everywhere, either from your office or travelling around the world. All you need is internet access. - Depending on your smart devices, seamlessly monitor the real-time temperature and humidity and set your desired parameter with only a few taps. - Create different rooms in your home, e.g. living room, bedrooms, etc., and specify in which room your smart device is located. In this way, you can keep track of temperature and humidity in different areas in your home. We are working on one of the most important things in the world: Fresh, healthy indoor air. Clean Air Optima International B.V. stands for innovative Clean Air Optima® Air Treatment Technology with healthy indoor air, designed in Germany. Through innovative technology and unique styles, the products of Clean Air Optima fit seamlessly into the individual living ambience. Clean Air Optima Corporate Philosophy. The Clean Air Optima Group ensures its existence through the Satisfaction of its customers. The stated goal is highest Customer satisfaction. Clean Air Optima® products are Certified according to their intended purpose. And for this we constantly monitor the quality of the product, analyze customer problems and recommend appropriate solutions. We offer our customers a high quality customer service: they receive expert advice before and after purchasing our products.
Zo Gemeld
Easily report issues like fallen trees or abandoned bikes to your municipality. The app allows you to describe the problem, add photos, and specify the location. You can also track the status of your reports and opt-in for updates.
- Describe reports easily
- Add pictures to reports
- Specify report location
- Track report status
- Receive report updates
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With Zo Gemeld you can easily send a report to your municipality. Whether its a fallen tree, an abandoned bike or broken trash container, you can send your report via Zo Gemeld. With Zo Gemeld you can: - Easily describe the report - Add pictures - Type in a location, select a location on the map or via GPS - Optionally you can leave behind you contact info to be kept into the loop about the report - See the status of the reports you have made A better municipality starts with the Zo Gemeld app.
Screenshots
Verdict
The clearest difference is rating: Zo Gemeld at 4.7 against CleanAirOptima's 1.0. Zo Gemeld also leads on update cadence (every 2 weeks vs every 17 months) and ratings volume (3 vs 1). CleanAirOptima's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model 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.
Zo Gemeld holds the better App Store score, 4.7 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
CleanAirOptima ships an update every 17 months, Zo Gemeld every 2 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | CleanAirOptima | Zo Gemeld |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.7 (3 ratings) — better |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 17 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 194 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Clean Air Optima International B.V. | Delta10 BV |
In-app purchases
CleanAirOptima
No in-app purchases
Zo Gemeld
No in-app purchases









