What it is
Verbull teaches one finance term a day, then makes you earn it. The Today tab shows the word of the day with a plain-English breakdown. The Play tab is a Wordle-style game where the answer is always a finance term.
What I built
- Five game modes: Classic, Timed, Definition (the clue is the definition), Expert (seven letters), and Duel, an async head-to-head mode with blind matchmaking and rematch series.
- Social: friends, invite links that open straight into the app, QR invites, and shareable spoiler-free results.
- A home-screen widget and push notifications, sent by a Supabase edge function over APNs.
- Sign in with Google written by hand (OAuth with PKCE in a system web session) so progress syncs between the app and the website.
- verbull.app, a companion site with 486 term pages and a daily word page.
- Pro, a yearly subscription or lifetime unlock through StoreKit.
How it's tested
687 automated tests. The daily word for each mode is computed from a fixed 365-word pool, so the tests pin that math down: changing the pool size would silently change every player's daily puzzle.
