Octi

The build

Octi is a mobile finance app where logging money and finishing short lessons raises a small octopus through six growth stages, from baby to millionaire. Every number lives on the device: accounts, money in and out, jars, goals and history are stored locally with no sign-up and no server. The home screen shows the octopus, a shell-by-shell progress strip, quick actions for logging money, and a stage badge whose progress ring is driven by the same rules engine that decides when the next stage is reached.

Highlights

• Offline-first: Drift (SQLite) database, no accounts, no network
• Six growth stages driven by a rules engine, not a hardcoded timer
• Accessible by design: large text, reduce-motion support, 48dp tap targets
• Built phase by phase with a test and an on-device screenshot per gate

Flow

Outcome