wow this is bult by a single man? I am an avid user of this site. I thought it is a VC backed product or something. Neat work. Thanks for building this. It use

wow this is bult by a single man? I am an avid user of this site. I thought it is a VC backed product or something. Neat work. Thanks for building this. It used to be free without any time limitation. But now it only allows 30 minutes of free usage per day. Is this model actually working?