Lotus by Open Black Belt

What it does

Open Black Belt builds software for martial arts schools and fitness studios. Our suite of tools — starting with Lotus — helps dojos and gyms manage members, track belts, grow revenue, and run better businesses.

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  Sutra Fitness2020 · ▲156

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  Open-source real-time data collection platform

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  Tona2019 · ▲152

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  GrappleXFeb 2026 · ▲3

  AI powered BJJ grappling companion app.

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  BJJ Evolve - Brazilian Jiu-Jitsu tracker2024 · ▲33

  Track, analyze & level up your Brazilian Jiu-Jitsu training

• TL
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  Launch with confidence, not gut instinct

  Life & fun · 12d ago · articos.com

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  Nex▲351

  Claude Cowork for high-volume GTM workflows

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  Photosynthesis fires two of your iPhone

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  Dev tools · Jun 2026 · brew.sh

• PU
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  Goldfish▲962

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