Feedback Pandaby Arvid Karl
Feedback Panda was a SaaS tool that automated student feedback generation for online English teachers serving Chinese students through platforms like VIPKid. Built by Arvid Karl (software engineer) and Danielle (teacher) in 2017, it grew to $55,000 MRR in two years through pure word-of-mouth by deeply understanding a hyper-specific niche market and celebrating customers as community heroes rather than pushing product features.
SaaSword-of-mouthsubscriptionvia The SaaS Podcast