ORTNER ABS vs Olsberg OEC 4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ORTNER ABS
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With the ORTNER ABS app, you can conveniently control the combustion control system of your fireplace via Bluetooth. Keep an eye on the current combustion process and gain valuable insights into the heating behavior of your heat-storage stove — directly on your iPhone. Features at a glance: • Live view of the current combustion process • Adjust parameters such as shut-off delay, LED brightness, and expert options • Perform firmware updates • Connect the ABS to your home network and the ORTNER Cloud • Service access for authorized technicians • MQTT configuration for smart home integration
Olsberg OEC 4
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Application for automatic combustion control OEC 4. The OEC 4 automatic combustion control regulates the combustion process itself by means of a microprocessor unit, which results in optimization of combustion depending on the air supply to the combustion chamber by means of an electronically controlled air damper. Automatic combustion control OEC 4 - optimises combustion depending on the flue gas temperature to maximise efficiency. - meets current emission requirements - prevents the appliance from overheating - ensures safe heating - maintains the combustion process at rated performance - extends the life of the appliance by optimising combustion - all visual and acoustic information is communicated to the customer via the OEC 4 app and directly on the appliance - the ideal time for refuelling is indicated acoustically and visually by an LED directly on the appliance - consumption is reduced by up to 30% compared to appliances without combustion control
Screenshots
Verdict
The clearest difference is device support: Olsberg OEC 4 at 3 against ORTNER ABS's 1. Olsberg OEC 4 also leads on iOS requirement (12.0 vs 17.6). On price, update cadence, ads and in-app purchases 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.
ORTNER ABS ships an update every 4 months, Olsberg OEC 4 every 8 months. The most recent releases landed on October 25, 2026 and September 18, 2026 respectively.
| Parameter | ORTNER ABS | Olsberg OEC 4 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Ortner GmbH | Timpex |
In-app purchases
ORTNER ABS
No in-app purchases
Olsberg OEC 4
No in-app purchases
