Live·Web app·2026·cron 15:00 UTC daily
Tally
Tracks every credit-card perk and credit before it resets
Why it exists
Premium cards bury hundreds of dollars a year in credits that reset monthly, quarterly, annually or on the card anniversary. Nobody remembers which ones they have used. Tally does.
What it does
Tally is a progressive web app with a seeded catalog of cards and their perks. You pick your cards, it lays out every credit with its reset cycle, and you mark each one used. Perks that trigger on their own are derived rather than logged, and each perk carries a verified-on date so you know how fresh the catalog entry is.
Reminders arrive as web push before a credit expires. The reset-cycle math is duplicated on purpose between the client and the server, and a test suite pins both so they can never drift apart.
Every issuer accent colour in the catalog clears WCAG AA contrast in both the light and dark theme, and the theme is applied by a head script before first paint so there is no flash.