Hi @joseantpr We don't generally regard apps that are ad supported or referral based to be commercial users. You are free to apply for a developer key.

Cheers.

Then... i don´t put advertisemnets or apply data science to earn money ? or generate leads with a affiliate program ¿?

In my case . i´m working in a app where i have links to other webs like netflix o wuaki and i earn money if the person buy or rent a movie in this streaming service and i want to create a recommendation system based in sentiment and context of the user... after i will create an "Recommendation as a service" where you can obtain recommendation with a freemium service. This is a commmercial o developer ?

A developer key is fine.

Cheers.

Sorry Travis, but i understand that my application haven´t any problem to use TMDB API and generate revenue like i said before...

Thanks for all.

Other cuestion, we can save the some data in our DB for the efficiency .

Yes, you can cache data locally.

Cheers.