Most programs that manage clientelle charge the owner based on membership capacity and additional features from the base version. Looks like you are just begin

Most programs that manage clientelle charge the owner based on membership capacity and additional features from the base version. Looks like you are just beginning, I'm sure you will have opportunity to enhance features and make it more desirable. Secondary revenue could come from advertising to the clientele (when the access the site for ??) based on the membership base (country club, good place for real estate and auto dealership ads, etc.) but I would think you would have to cut the membership owner into ad revenue (maybe reduced usage cost?). There's potential.