5/3/1 App (fivethreeone.app)

"A fitness app dedicated to the 5/3/1 strength training program, generating ~$1,000/month, with a successor in development that lets users write custom workout programs with formulas."
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fivethreeone.app
Maker: strongpigeon
~$1,000/month

Marketing Channels

Primary

App Store (organic)

Main distribution channel for the fitness app

Secondary

Hacker News

Shared in Show HN thread with positive user testimonials

Ongoing

Word of mouth (fitness community)

Users in the 5/3/1 training community discover and recommend the app

Growth Levers

  • Launch the successor app with custom formula-based workout programming to expand beyond the 5/3/1 niche
  • Address the 'few niggles' mentioned by active users to improve retention and ratings
  • Target the broader strength training community with the customizable workout program feature
  • Leverage existing 5/3/1 user base as early adopters and evangelists for the successor product
  • Build content around strength training programming to drive organic search traffic

First Customer Strategy

Built a dedicated app for the popular 5/3/1 strength training program by Jim Wendler, targeting an established fitness community with a specific programmatic need. The niche focus on a single well-known program attracted a loyal user base willing to pay.

Pricing Insight

App generates ~$1,000/month from what appears to be a paid app or subscription model. The creator raised money from friends to work full-time on a more ambitious successor, suggesting the current revenue isn't sufficient for full-time work alone.

New Market Opportunities

  • Custom workout programming platform Successor app allows users to write their own workout programs with formulas — moving from a single-program app to a programmable fitness platform
  • Broader strength training community Commenter plans to try the app when they move onto 5/3/1, suggesting demand from lifters transitioning between programs — the successor could capture them earlier

Key Takeaways

  • • Niche fitness apps targeting specific, well-known training programs can generate steady ~$1k/month revenue
  • • Building for an established community (5/3/1 lifters) provides built-in demand and word-of-mouth distribution
  • • A successful niche app can serve as both revenue and validation for a more ambitious follow-up product
  • • Raising money from friends/community is a viable funding path for solo developers with proven traction
  • • Users who say 'a few niggles but exactly what I needed' represent a healthy product-market fit with room for polish

Sentiment Analysis

2 Pos

Notable Quotes

"I've been using your app for the last 3-4 months very successfully. There are a few niggles here and there but overall it's been exactly what I needed, and I'm very grateful for it! — wlamartin"
"This app looks great! I'll definitely try it out when I move onto 5/3/1. — cyrialize"

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