The Power of Preselling and Freemium with John Turner of SeedProd, a Coming Soon Page and Maintenance Mode Plugin for WordPress
DECEMBER 2, 2018
His plugin started to gain traction and was getting lots of feature requests, so John created a pro version. I started building those, and I would release the pro version of that plugin. Freemium being you have a free product with an upsell to a paid version.