Widespread User Complaints Hit Naftogaz’s New 'Kub' App: Key Issues Revealed.

Mobile App 'Kub' Faces Backlash

According to Novyny.live: Customers of Ukraine’s state-owned gas supplier Naftogaz are flooding support channels with complaints about the newly launched mobile application 'Kub'. Designed for submitting meter readings and managing gas payments, the app has instead become a source of frustration for many subscribers. Users report difficulty navigating the interface, trouble managing multiple addresses, and an inability to correct erroneous data. The app’s previously available chatbot, GASUA, has also been removed.

Developed by Naftogaz Digital Technologies LLC, the 'Kub' app saw adoption by 98% of Naftogaz Ukraine’s customers by spring 2026. Despite its widespread use, the ongoing technical and usability issues are raising serious concerns among consumers.

One customer remarked: 'Kub has no owner! When you call either Naftogaz or the gas distribution company, they say they have nothing to do with Kub—claiming it’s just technology!'

In response to the backlash, Naftogaz stated: 'We understand your concern. Kub does not collect any data without user consent.' While the company seeks to reassure customers about data security, the app’s functional problems remain unaddressed.

Core Complaints and Workarounds

Users have highlighted three main issues:

• confusing and unintuitive interface;
• difficulties handling multiple residential addresses;
• no option to correct mistakenly entered data.

As an alternative, customers can still submit meter readings via the Naftogaz Ukraine personal cabinet, by SMS to number 4647, or through the gas.ua website without registration.

The situation is further complicated by changes to Naftogaz’s payment details introduced in March 2026. In April 2026, consumers will pay 7.96 UAH per cubic meter of gas—a factor that may heighten sensitivity to service quality amid the app’s struggles.

The 'Kub' app controversy underscores the critical importance of user feedback, as unresolved issues can erode trust in the company. With new gas tariffs taking effect, Naftogaz must address complaints swiftly and ensure its digital services function properly to retain customer loyalty. Failure to do so risks driving away users and damaging the company’s reputation.