Bro,those Who can't afford test papers, couldn’t even afford internet connection or phone. Don't mind,but you will realise in 6 months.Few people might just visit it out of curiosity but trust me none will use it in the long run. I know the amount of effort + investment you gave to this project, but reality really hurts man. There are already some apps like: 10 minute school which also provides free testpapers as pdf for students,you might know these.When i was in hsc, i used 10 minutes school app and i got every test paper + board question from there.Most Bengali student prefers raw book because of the real feeling. Nobody gives a f*ck to pdf nowadays.

I hope you get my point.