I'm not one that he flies with gamma spectrometer. But I've had RadiaCode 103G since Dec 2024. It's pretty neat device that can be brought with you almost anywhere.
https://radiacode.com/
It's made in Cyprus (EU) and has apparently received some EU funding. Using Google Search AI mode and asking what is CEO Sergey Shek connection with Moscow Radiological institute gave me following reply.
"The connection between Sergey Shek, the founder of Radiacode (formerly Radiascan), and Moscow's radiological research centers is primarily rooted in his and his team's professional and academic history.
The key points of connection are:
Academic and Professional Origins: Radiacode’s founding team consists of Russian physicists and engineers who were educated and began their careers at prestigious scientific institutions in Moscow. These include researchers formerly associated with the N.N. Semenov Federal Research Center for Chemical Physics and other centers specializing in nuclear physics and spectroscopy.
Early Product Development: The company's initial products, such as the Radiascan-701, were developed in Russia using the technical expertise gained at these Moscow-based institutes. The technology behind their current high-precision scintillation detectors stems from this scientific background.
Relocation and Independence: Following the start of the conflict in Ukraine, the company officially rebranded as Radiacode and shifted its headquarters and operations to Cyprus and the United Kingdom. Sergey Shek and the company have sought to distance themselves from Russian state institutions to operate as a global, independent entity.
Today, while the "scientific DNA" of the company originated in Moscow's radiological research environment, Radiacode operates entirely outside of Russia and focuses on the international market for hobbyists and professionals."Russian background didn't sound good to me for obvious reasons. Thus I did not install app to my daily driver phone and use a separate Android device for this app. But the device is nice and app quite good for what I've used it.
Adding: You can find videos about the device from Youtube.com