Momenial https://momenial.com — a mobile app for creating certificates for webinar attendees.
Currently making $0/mo. I'm actually building this app as a "case study" for my upcoming book, an opinionated guide to building mobile apps, from ideation, dev, ops, and marketing. I've been blessed with working at various company sizes and wearing multiple hats: founder of two failed startups, VP Eng at a telco and a large retail conglomerate, and now CTO of a medium-sized fintech.
The book won't promote microservice, Kubernetes or anything Google-level. It's a modern-but-practical guide "for the rest of us". If this sounds interesting, please create an account in Momenial—I will send updates about the book there (because it doesn't have a landing page).