Cardful
Your cards. None of the math.
Cardful is a command center for credit-card rewards. It keeps every statement credit, annual fee, and point balance in one place and tells you the best card to pull out, anywhere. It does the math your wallet has been skipping.
Search a store and it ranks the cards you actually carry by what each one really earns: the multiplier times an honest cents-per-point value, reasoning shown. It tracks credits before they expire, settles the annual-fee question with arithmetic instead of vibes, and values points honestly. No bank login required, because there is nothing to link.
As a marketing exercise it went the full distance: category research, a freemium model with a free tier that never expires, a listing written to convert, a site with a methodology page and a landing page for every card in the catalog, and an App Review rejection diagnosed and turned into an approved release. Weeks after launch, users are tracking $7,100+ in credits and have logged $1,500+ of them as captured.
Positioned against the dread
The listing opens on the pain, "Your cards are full of money you are not using," and every section pays it off with a concrete dollar saved.
Priced as a product
A free tier that is genuinely free, forever, and Cardful Premium at $59.99 a year or $6.99 a month with a 7-day trial. Premium automates the tracking and never takes anything away from free.
The site is the funnel
Features, pricing, a methodology page, guides, and a landing page for every card in the catalog, generated from the live data. Search traffic lands on the exact card someone already holds, one tap from the App Store.
Shipped through App Review
Rejected on first submission under guideline 3.1.2. Diagnosed, fixed, and approved: the unglamorous half of a real App Store launch.