textPlus built a business on the one thing carriers refused to give away: a phone number. Fifteen years and 150 million downloads later, Truecaller wrote the check.
Two founders talked to hundreds of homeowners, decided the real product was a trusted person to ask, and shipped it as an app. This is the case for turning a family handyman into software.
Skillest is a mobile marketplace that connects students with elite sports coaches - primarily in golf - for one-to-one remote video lessons. Players film a swing, coaches reply with annotated video, voice notes and drills, and improvement happens without a tee-time.