I understand that and like to pay for good software, but also have to budget my spending because I don't have endless income to support everything and it really sums up to pay for every software I use.

Paid relays, Client, Kagi Search, VPS, GrapheneOS, Zapping, ... There is so much great stuff I'd like to pay for but that's just not realistic with limited income, I hope you can get enough users that a low cost subscription like $2 would be sufficient to fund it. But 10-15 is just too much for the value received IMO. You can get Netflix and mobile data for $10 a month and that provides a ton more value than a Nostr client that is just a bit better than the other ones.