FeedbackPanda: a two-person SaaS for online teachers, sold in two years
Arvid Kahl and Danielle Simpson built a tool for online English teachers, grew to about $55K a month with no employees, and sold it to SureSwift in 2019.
- Product
- FeedbackPanda
- Founder
- Arvid Kahl and Danielle Simpson
- Launched
- 2017
- Model
- Subscription
Published · 2 min read · 2 sources
- #bootstrapped
- #niche-saas
- #education
- #acquisition
- #no-employees
- #burnout
Key takeaways
- Built in 2017 to save Danielle two unpaid hours a day writing student feedback as an online English teacher.
- Two founders, no employees, no funding; over five thousand customers and profitable within weeks of going public.
- About $55,000 a month in revenue by 2019, sold to SureSwift Capital in June 2019 for a seven-figure sum (founder-reported).
What it is
FeedbackPanda was a SaaS tool that helped online English teachers write the student feedback that teaching platforms required after each class (The Bootstrapped Founder).
Timeline
- 2017: Danielle Simpson teaches English online to Chinese children and spends "two extra hours" each day writing feedback for parents; Arvid Kahl starts a weekend prototype (The Bootstrapped Founder).
- 2019: about $55,000 per month in revenue and about 5,000 customers, Kahl told They Got Acquired (They Got Acquired).
- June 2019: sold to SureSwift Capital in a seven-figure deal (They Got Acquired).
- Nov 2019: Kahl publishes the story on his new blog, The Bootstrapped Founder (The Bootstrapped Founder).
Why it worked
- A painful, daily problem. The feedback was "two hours of unpaid work that consisted of writing the same things over and over again" (The Bootstrapped Founder).
- Niche first. "We found our niche first... We then looked for their most critical problem" (The Bootstrapped Founder).
- Founder inside the market. One co-founder was a customer, and they reached teachers "through the channels they would be most likely to use", which made it profitable "within a few weeks" of going public (The Bootstrapped Founder).
- Automation instead of staff. "We never hired a single employee," yet served "over five thousand customers" (The Bootstrapped Founder).
What to learn
- Look for unpaid, repetitive work in a group you belong to. That is where willingness to pay is clearest.
- A narrow audience is fine if it is reachable and shares one critical problem.
- Build the business so it can run without you; it makes selling possible, as Kahl recommends (The Bootstrapped Founder).
Risks and what didn't work
- Burnout. "I was at the edge of burnout, and we wanted to diversity our wealth," Kahl said of the decision to sell (They Got Acquired).
- Concentration. All customers came from one niche (online English teaching for Chinese children), so the business depended on that market.
- Revenue and the sale size are founder-reported; the exact price was not disclosed (They Got Acquired).
FAQ
Short answers drawn from the sections above.
What is FeedbackPanda?
FeedbackPanda was a SaaS tool that helped online English teachers write the student feedback that teaching platforms required after each class (The Bootstrapped Founder).
Why did FeedbackPanda work?
- A painful, daily problem. The feedback was "two hours of unpaid work that consisted of writing the same things over and over again" (The Bootstrapped Founder).
- Niche first. "We found our niche first... We then looked for their most critical problem" (The Bootstrapped Founder).
- Founder inside the market. One co-founder was a customer, and they reached teachers "through the channels they would be most likely to use", which made it profitable "within a few weeks" of going public (The Bootstrapped Founder).
- Automation instead of staff. "We never hired a single employee," yet served "over five thousand customers" (The Bootstrapped Founder).
What can indie builders learn from FeedbackPanda?
- Look for unpaid, repetitive work in a group you belong to. That is where willingness to pay is clearest.
- A narrow audience is fine if it is reachable and shares one critical problem.
- Build the business so it can run without you; it makes selling possible, as Kahl recommends (The Bootstrapped Founder).
What didn't work for FeedbackPanda, and what are the risks?
- Burnout. "I was at the edge of burnout, and we wanted to diversity our wealth," Kahl said of the decision to sell (They Got Acquired).
- Concentration. All customers came from one niche (online English teaching for Chinese children), so the business depended on that market.
- Revenue and the sale size are founder-reported; the exact price was not disclosed (They Got Acquired).
Sources
Every link cited above, in order of first use.
- 1.The Bootstrapped Founder (thebootstrappedfounder.com)
- 2.They Got Acquired (theygotacquired.com)
Related case studies
More in SaaS →Lemon Squeezy: idea to Stripe acquisition in under three years
A small team built a merchant of record for digital products, hit $1M ARR nine months after launch, declined a $50M+ Series A and sold to Stripe in 2024.
Podawaa: a LinkedIn engagement tool with verified $61K MRR, built on a gray area
Podawaa sells LinkedIn reach: boosted likes and comments, plus scheduling and AI writing. Stripe-verified revenue is strong, but LinkedIn's own rules forbid artificially boosting engagement, and Podawaa says so on its homepage.
DataFast: a solo founder's revenue-first analytics tool at verified $29K MRR
Marc Lou built DataFast to answer one question that pageview counters don't: which marketing channels bring paying customers. Stripe-verified numbers on TrustMRR show what a one-person analytics SaaS can reach in about two years.