OptimalSwipe
Always swipe the right card. Maximize rewards, privately.
What it does
Stop guessing which credit card to swipe. OptimalSwipe tells you the best card for every purchase, privately and on-device. Your cards and transactions live in your private iCloud Drive. Recommendations run locally using smart built-in rules and a fast Apple Shortcut. Trigger both from the app screen, or run the Shortcut directly for instant suggestions. No bank logins. No servers. Installable as a PWA on desktop and iPhone. Maximize points or cash back. Early, opinionated, privacy-first.
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Hey HN! I wanted to share something I built over the last few weeks: isometric.nyc is a massive isometric pixel art map of NYC, built with nano banana and coding agents. I didn't write a single line of code. Of course no-code doesn't mean no-engineering. This project took a lot more manual labor than I'd hoped! I wrote a deep dive on the workflow and some thoughts about the future of AI coding and creativity: http://cannoneyed.com/projects/isometric-nyc
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