[charlesdm]

I don't want to be overly negative, but I have launched quite a few indie 6 figure apps over the last five years, and something generating $500 a month isn't really working (in my book).

Have you even tried to just sell licenses for it? If your software delivers value then that should convert better than a nag screen. Worth giving users a 30 day trial and seeing how that converts.

[fyfy18]

Would be interested to know more about this. I see you posted an article last year, but it's since been deleted.

[charlesdm]

As in, interested in how I did it? I've been considering putting something together in the not so distant future -- throw me an e-mail with your contact details and I'll add you to the (currently very small) mailing list.