Mobile app framework (unspecified) Startups

Todoist is a massively popular task management app built by Amir Saleh Effendik, a remote-first SaaS company with ~50 employees. Amir built Todoist as a side project while working at Plurk, a social network, and only committed to it full-time after learning critical product and design skills. The app grew through SEO, a popular development blog Amir maintained, and availability across all platforms (web, mobile, browser extensions).