Need monetization help on my app

trying to monetize my website. I dont believe in ads or selling user data so the only way i can monetize is pro plan. but after 2 months I have 55 users but no pro users. can you all take a look at my app and see if there is any problems with the pro plan? like there is not an incentive enough or its too expensive? thank you for your support.

I filled the form and then the site asked me to register :(

One possibility is to show some recommendations while completing the form, using some guess for the missing information. You may show adds mixed with the recommendations.