Independent software studio
Small apps. Real problems. No unnecessary complexity.
Black Dragon Lab builds focused tools that work privately on your device.
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Barbell Genie
Load the bar with the plates your gym actually has.
Built for mixed kilogram and pound gyms, garage gyms, CrossFit boxes, and lifters who are tired of guessing.
- Mixed kg and lb inventories
- Visual plate loading
- Closest achievable weight
- Works entirely on-device
Learn More
Coming soon to the App Store
Your gym, once
Enter the rack you actually have.
Counts are individual plates, not pairs — four 20 kg bumpers is four. Pick your bars, add anything off the standard list with Add a custom plate or Add a custom bar, and it is saved for next time.
- Kilogram, pound or mixed inventories
- Custom plates and custom bars
- As many gyms as you train at
Principles
How everything here gets built.
Private by design
Your app data stays on your device.
Focused
Each product solves one clear problem.
No unnecessary accounts
Open the app and use it.