How does Helium make money?

Could you please elaborate on the financial mechanisms employed by Helium to generate revenue? I'm particularly interested in understanding how their business model works, and what strategies they utilize to ensure a sustainable income stream. Additionally, are there any specific services or products offered by Helium that contribute significantly to their overall profits? Could you provide insights into how they attract and retain customers, as well as how they handle competition in the industry? Lastly, what are some potential risks or challenges facing Helium's revenue generation efforts, and how are they addressing them? Thank you for your time and detailed response.