eSterownik vs AP CAT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eSterownik
Remotely manage your solid fuel boiler from Elektro-System. Monitor heating parameters, control room temperatures, and view system statistics and alarms. Supports various controller models for comprehensive home heating management.
- Customizable heating parameter view
- Graphical installation diagram
- Individual room temperature control
- Access to detailed controller settings
- Parameter change graphs
- Fuel consumption and cost statistics
- Alarm and event display
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eSterownik is an application that allows remote access to solid fuel boiler controllers from Elektro-System: eCoal v. 3.5, bruli v. 3.5, Defro SMART II 3.5, and Pello. It offers the following features: • Customizable view of the most essential heating system parameters, • A graphical diagram of the installation along with real-time system parameter values, • The ability to control heating in each room individually, as well as monitor temperature and humidity (requires the installation of an additional radio module and thermostat heads on radiators or other heat-distributing devices in individual rooms, with optional temperature and humidity sensors), • Support for additional actuating devices, such as underfloor heating strips or relays, • Access to detailed controller settings, • Graphs to review changes in selected parameters over time, • Statistics on power, fuel consumption, and costs over selected periods, • Display of alarms and events, server notification settings, and the ability to assign permissions to other users.
AP CAT
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Auto Partner SA is a dynamically developing importer and distributor of spare parts for cars, light commercial vehicles and motorcycles as well as workshop equipment. Its customers may order goods not only via online catalogues, but also through the APCAT mobile application. The APCAT app offers an intuitive and quick overview of car and motorcycle parts from among nearly 300,000 articles available for sale at Auto Partner. It allows searching by different criteria: - AP’s commodity code, - manufacturer’s code, - OE part number, - EAN barcode, - name or synonym. Search results may be filtered by product group, manufacturer, place of installation and according to other criteria specified for each product. The application enables quick selection of parts according to the TecDoc product map and intuitive Fast Click icons redirecting to selected product groups. The app displays the closing time for the next route. The user-friendly cart allows to place the orders easily and special notifications remind about orders that are yet to be completed.
Screenshots
Verdict
The clearest difference is update cadence: eSterownik at every 2 months against AP CAT's every 5 months. AP CAT's advantage is iOS requirement (11.0 vs 13.0). 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.
eSterownik ships an update every 2 months, AP CAT every 5 months. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.
| Parameter | eSterownik | AP CAT |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 7.7% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Elektro-System s.c. | DVSE GmbH |
In-app purchases
eSterownik
No in-app purchases
AP CAT
No in-app purchases









