# ONI system vs Concept Heating

The clearest difference is update cadence: ONI system at every 6 weeks against Concept Heating's every 23 months. ONI system also leads on review sentiment (33% vs 8%). Concept Heating's advantage is iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ONI system ships an update every 6 weeks, Concept Heating every 23 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ONI system | Concept Heating |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/concept-heating/id1412643887/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **33.3% of reviews** | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 23 months |
| Monetization | Free | Free |
| Size | 90 MB | 5 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NAM system a.s.](https://appshunter.io/developer/1156895479) | [Jindrich Valenta - Concept](https://appshunter.io/developer/1409588876) |

## What reviewers say

### ONI system

[App page](https://appshunter.io/ios/app/oni-system/id1156895480)

Access and view crucial asset data, including lists, real-time positions, and traffic information. Track trips, view routes, and get detailed asset states like temperature and battery levels. Navigate directly to asset locations.

**Highlights:** View asset lists, Real-time asset positions, Google traffic near assets, Logbook of trips, Asset route history, Navigation to asset location, Detailed asset states

**In-app purchases:** none


### Concept Heating

[App page](https://appshunter.io/ios/app/concept-heating/id1412643887)

Remotely manage your CONCEPT convection heater from your smartphone or tablet via Wi-Fi. Turn your heater on or off and set your desired temperature from anywhere, ensuring your home is warm when you arrive.

**Highlights:** Remote heater control via Wi-Fi, Turn heater on/off, Set desired temperature, Control from smartphone or tablet, Compatible with VT5000 and VT5010 models

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ONI system free?

ONI system is free to download, with no in-app purchases.

### Is Concept Heating free?

Concept Heating is free to download, with no in-app purchases.

### Do ONI system or Concept Heating have ads?

Neither ONI system nor Concept Heating shows ads.

### Which is updated more often, ONI system or Concept Heating?

ONI system ships an update every 6 weeks, and Concept Heating every 23 months. Most recently, ONI system was updated on October 1, 2026 and Concept Heating on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*