Mailman, a tool that allows users to control when and what emails should land in their inbox, is a year-old company bringing in approximately $30k in MRR, while its upcoming features will improve users’ newsletter-reading experience and automate redundant tasks.

Burak Kanber created WritePhobia, an app that motivates writers to write regularly by punishing them for not meeting their word count goals, which has gained a usership of a few dozen users in public beta and has found success through word-of-mouth marketing.

John Lee Dumas grew his award-winning podcast, Entrepreneurs On Fire, into a business offering online courses, coaching, and a mastermind program, generating nearly $4 million in revenue from his flagship product, Podcasters’ Paradise.