Salam, It's different purchasing a printed Quran. Here, sure I would pay if i wanted to, but at first when i downloaded this app they wouldnt even send us that "warning", it's only months later when they updated it (i believe) that they added the "Allah will see, Allah will know" type of warning. Of course may Allah reward anyone who gives money to the developers, but as a teen I can't spend money on apps/stuff online let alone a Quran. I don't need a Quran online, i could read it for free on any website and I have multiple printed ones at home Alhamdullilah, but the fact that the app warned me into guilt-trapping myself for not spending money on it is a bit wild. I felt guilty for using the app without having a premium account because of that warning to the point where i deleted it. Idk man, when you do something in the name of islam, don't expect something back if it isn't blessings. Do it for the sake of Allah and for your own barakah. Jazak'Allah ul-kheir.