Kevin's Apps

Small web apps, all free to use in your browser.

MJ Waits

Toolkit for 16-tile (Taiwanese / Hong Kong) Mahjong: build a hand, see what completes it, and score it.

Open app →GitHub

HK Interest Calc

Hong Kong finance calculators: judgment debt and prime-rate interest, mortgages, IRR and CPI inflation.

Open app →GitHub

Rent Divider

Split rent fairly among roommates so nobody would rather swap rooms.

Open app →GitHub

Harbour Drift

Arcade math driving game through neon Hong Kong: steer through the gate with the right answer.

Play →GitHub