Re:Ask HN: What's a side project you built to make money tha...
by gremlinsinc on Wednesday December 30, 2020 @10:53PM
(#25589412)
Make a free/pro version. Free version only works w/ a lock-screen interstitial ad enabled, and the VPN disconnects every 30 minutes until you re-enable it.
Pro version is like $1.99/month subscription.