Real-revenue cases
A teacher sells a card and dice game that drills English phrasal verbs to ESL teachers and learners, mostly through Amazon and a Shopify store, at roughly $1.5K a month.
01
Phrasal verbs are a genuine, persistent pain point for English learners, and teachers already pay for classroom materials, so this replaces DIY worksheets and generic textbooks. But at $1.5K/month with one founder, it is small and highly seasonal.
ESL teachers and self-learners buy the physical card game, expansion decks, and teacher T-shirts on Amazon and Shopify; online courses and YouTube add secondary revenue.
DIY worksheets and generic English textbooks.
02
Not stated; the founder only mentions that educator connections from conferences later led to partnerships.
03
The cheap-lead-ad plus long email nurture plus day-N conversion funnel transfers directly to launching an AI tool or AI course; the handwritten-card review tactic also works for any AI app that lives or dies by platform reviews.
04
Revenue basis · Founder self-reported, unaudited (see source page)
The $1.5K/month figure is founder self-reported and unaudited, and it is unclear whether it is revenue or profit.
No user counts, repeat-purchase rate, or churn data, so durability of demand is unverified.
The original customer acquisition method and first sales source are not stated.