Codédex: two failed pivots, then a Pokémon-style learn-to-code site with verified $80K MRR
Sonny Li and two friends spent their savings on a karaoke app and a restroom finder before shipping Codédex in a weekend. Its Stripe-verified revenue on TrustMRR shows the result four years later.
- Product
- Codédex
- Founder
- Sonny Li
- Launched
- 2022
- Model
- Freemium subscription (Club)
Published · 2 min read · 3 sources
- #education
- #learn-to-code
- #gamification
- #pivot
- #bootstrapped
- #trustmrr
- #gen-z
Key takeaways
- Two pivots first (Karaoke Nite, Welp); the Codédex MVP shipped after a single weekend in 2022.
- Oct 2022: users in 100 countries and $500 MRR, per the founder. Nov 2026: $81,497 MRR and 6,496 active subscriptions, Stripe-verified on TrustMRR.
- Lesson: each failed MVP made the team faster. Karaoke Nite took six weeks, Welp two, Codédex a weekend.
What it is
Codédex is a gamified, beginner-friendly platform for learning to code. The name is a nod to the Pokédex, and the goal is to make learning "as fun and collaborative as playing a Pokémon game with friends" (Glitch interview). Lessons are free; the paid Club starts at $9.99/month (TrustMRR).
Timeline
- Summer 2022: Sonny Li and two friends went "all-in into building mode (with our life savings)" and pivoted twice: Karaoke Nite, then Welp, a restroom finder for New York City (Indie Hackers).
- 17 Oct 2022: four months in, Codédex had registered users in 100 countries and was "trying to go from $500 MRR to $10K" (Indie Hackers).
- Nov 2022: launched on Product Hunt (Glitch interview).
- Apr 2023: "tens of thousands of registered users" and people in 174 countries, per the founder (Glitch interview).
- 2 Nov 2026: $81,497 MRR, 6,496 active subscriptions and $1,505,118 all-time revenue, verified with a Stripe API key (TrustMRR).
Why it worked
- A sharp audience and brand. "Learn to code for Gen Z", with a game-like style built on gaming nostalgia (Indie Hackers, Glitch interview).
- Attacking a known problem. Li's pitch: most people who start learning to code online give up within days (Glitch interview).
- Speed from failure. "Every round, we got exponentially faster at building, decision-making, and social marketing" (Indie Hackers).
- Generous free tier. The free plan offers 250+ hours of interactive lessons, which feeds the paid Club (TrustMRR).
What to learn
- Treat failed MVPs as training. Shrinking build time from six weeks to a weekend made the third attempt cheap (Indie Hackers).
- In a crowded category (learn to code), win on feel and audience, not on content alone.
- A free product that people love can carry a low-priced subscription, if enough of them stay.
Risks and what didn't work
- The first two products didn't find traction, and it was "SO demoralizing each time" (Indie Hackers).
- The founders put their savings in, so the downside was personal (Indie Hackers).
- Early user counts are self-reported; only the current revenue is verified by TrustMRR (TrustMRR).
- Consumer education competes with free tutorials and AI assistants that can teach coding on demand.
FAQ
Short answers drawn from the sections above.
What is Codédex?
Codédex is a gamified, beginner-friendly platform for learning to code. The name is a nod to the Pokédex, and the goal is to make learning "as fun and collaborative as playing a Pokémon game with friends" (Glitch interview). Lessons are free; the paid Club starts at $9.99/month (TrustMRR).
Why did Codédex work?
- A sharp audience and brand. "Learn to code for Gen Z", with a game-like style built on gaming nostalgia (Indie Hackers, Glitch interview).
- Attacking a known problem. Li's pitch: most people who start learning to code online give up within days (Glitch interview).
- Speed from failure. "Every round, we got exponentially faster at building, decision-making, and social marketing" (Indie Hackers).
- Generous free tier. The free plan offers 250+ hours of interactive lessons, which feeds the paid Club (TrustMRR).
What can indie builders learn from Codédex?
- Treat failed MVPs as training. Shrinking build time from six weeks to a weekend made the third attempt cheap (Indie Hackers).
- In a crowded category (learn to code), win on feel and audience, not on content alone.
- A free product that people love can carry a low-priced subscription, if enough of them stay.
What didn't work for Codédex, and what are the risks?
- The first two products didn't find traction, and it was "SO demoralizing each time" (Indie Hackers).
- The founders put their savings in, so the downside was personal (Indie Hackers).
- Early user counts are self-reported; only the current revenue is verified by TrustMRR (TrustMRR).
- Consumer education competes with free tutorials and AI assistants that can teach coding on demand.
Sources
Every link cited above, in order of first use.
- 1.Glitch interview (blog.glitch.com)
- 2.TrustMRR (trustmrr.com)
- 3.Indie Hackers (indiehackers.com)
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