Oncall Tech vs NRG Config
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Oncall Tech
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The Oncall Tech App is a security management tool designed specifically for modern homes and office environments. By seamlessly connecting with smart security devices (such as cameras, door and window sensors, smoke detectors, etc.), you can monitor your home or office anytime, anywhere, ensuring safety and peace of mind. Key features: 1. Real-time Monitoring and Alerts Receive real-time alert notifications from intelligent security devices, such as abnormal intrusions, fires, gas leaks, etc. 2. Remote Control Remotely control the switches of security equipment through the Oncall Tech app, such as arm/disarm. Supports timing task settings, automatically turning on/off the security system. 3. History and statistics Record all alarm events and device operation logs for easy viewing and management. Provides data statistics to help you analyze security status. 4. Multi-user Sharing Supports family members or colleagues sharing device permissions, managing the security system together. Different user permission levels can be set to ensure safety and control.
NRG Config
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NRG Config is a state-of-the-art configuration parameter tool developed by NRG for EV charging stations. Designed to empower installers, testers as well as end-users of NRG charging stations, it enables users to seamlessly achieve the following functions: - Connection to the backend server by configuring the charging station - Configuration of charging modes to suit your needs - Flexibility in configuring the rated output current of the charging station - Advanced configurations for home energy management, giving users the power to control their energy consumption more effectively. - Keep your charging station up-to-date by updating the firmware at any time using the NRG Config. With unparalleled ease of use and unbeatable support, NRG Config is an essential tool for those seeking to maximize the performance of their NRG charging station.
Screenshots
Verdict
The clearest difference is iOS requirement: NRG Config at 11.0 against Oncall Tech's 15. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Oncall Tech ships an update weekly, NRG Config every 2 weeks. Both last shipped on October 28, 2026.
| Parameter | Oncall Tech | NRG Config |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly โ better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15 | 11.0 โ better |
| Further details โ not scored | ||
| Size | 130 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | On Call Technical Support Ltd | NRG CHARGE LTD |
In-app purchases
Oncall Tech
No in-app purchases
NRG Config
No in-app purchases









