BadDuck is a small studio run by engineers. We build web apps, live collaboration tools, and proper backends — the kind you don't have to babysit at 2am.
A few things we've built and look after — for clubs, for splitting bills, and for sharing files.
MyAthlete runs memberships, squads and payments for sports clubs. Payments are handled like a proper ledger — every cent accounted for — and training plans are worked out from real rules, not spreadsheets.
Take a photo of a paper receipt and TabSplit reads it, splits it fairly, and keeps everyone's phone in sync. Tips, shared plates, who's had what — sorted live while you're still at the table.
Copy on your laptop, paste on your phone. Everything is scrambled in your browser before it leaves, and it auto-deletes after about 20 minutes. We never see it, we don't store it.
docker compose up -d • Port 8081
Also knocking around: Roulette Tracker — a weekend experiment I threw together in a few hours to test roulette systems. Spoiler: the house still wins.
Most of our work is the stuff people don't see: money that has to add up, data that has to stay private, and things that have to keep working when the wifi doesn't.
Clubs, finance, pricing — some rules are too fiddly for spreadsheets. We turn them into small, testable rule engines so they do the same thing every time.
We scramble data in the browser before it goes anywhere. That way there's nothing useful to leak, and you don't end up holding data you didn't want.
Double-entry ledgers, proper audit trails, no mystery cents. If the numbers don't balance, we treat that as a bug, not a rounding error.
Shared bills, check-ins, collaboration — stuff that should feel instant and still work when someone's connection drops. We build for that.
New idea from scratch, something old that needs fixing, or the bit everyone else said was too hard. Send it over — the duck will take a look.