Wow, really great job! I thought you were going to take longer to release the code. I can’t think of another search engine that is open source, only meta-search engines.
I would highly recommend you to publish your product here, you can reach to more people without having to spent money or a lot of time.
I would like to know if you could elaborate a little bit more here:
Since we are using the Microsoft’s Cognitive Services API, the searches that have been made on our behalf are saved by Microsoft. It just appears to Microsoft as us making the searches
Is there a way in which Microsoft could identify your users? Is there a way in which you can send them nothing? What information does exactly Microsoft gets?
Since the service is located in the USA, how would you react to a subpoena in a surveillance programme like PRISM? Did you ever think on implementing a warrant canary?
I’m gonna post on some subreddits to recommend your product to some other people!
Lastly, and this is unrelated, if you ever need a translator I could help you with Spanish, German and maybe Italian. I’m not asking for money, just want to help.