Tip Hunter is for people who get a small thrill from a beautiful number. Within the tip you're already leaving, it hunts for restaurant totals worth remembering — palindromes, primes, Fibonacci numbers, perfect squares — and lets you collect the ones you've paid.
iPhone · iOS 18+ · one-time price
How it works
Tip Hunter never makes you tip more than you meant to. It searches inside the range you'd already leave.
Type the subtotal from your check. No account, no sign-in — you're hunting in seconds.
Within your tip range, Tip Hunter surfaces the totals worth remembering — ranked by how rare they are.
Leave the tip you like. The total becomes a specimen — pressed into your field guide forever.
The collection · one genus, nine species
Every beautiful total is a Numerus — one genus, nine species. Each keeps its own Werner-named color and its own way of being lovely.
The Field Guide
Caught numbers are pressed like specimens — mounted, catalogued, kept. Some plates wait empty for the catch that completes them.
Private by design
Tip Hunter is a quiet, private game of discovery — not a service that watches you. There's nothing to wade through and no one looking over your shoulder.
A look inside
Real screens from the app
Coming soon
A small, private thrill — every time the check arrives.