
Free
In-App Purchases
Rating summary
About
Scan any US bill. Find out in two seconds whether it's worth more than face value.
Point your camera at the serial number. RareBill reads it on-device and tells you straight away whether you're holding a star note or a fancy serial. Ten free checks a day, and every one gives you the complete answer.
WHAT MAKES A BILL SPECIAL
STAR NOTES - replacement notes printed to replace damaged ones, marked with a star at the end of the serial. Roughly one bill in a hundred.
Fancy serial numbers, all detected instantly:
• Solid — 11111111
• Ladder — 12345678
• Radar — 12344321, reads the same backwards
• Repeater — 74627462
• Super repeater — 39393939
• Double quad — 55553333
• Binary and true binary — only two digits
• Low serials — under 00001000
• High serials — 9999xxxx
• Seven of a kind, birthdays, bookends and more
NO SUBSCRIPTION
RareBill Pro is one payment of $14.99. Most apps in this corner of the store bill you every year for the same reference data. This one asks once.
THE FREE PART IS A REAL ANSWER
Ten checks a day, and every single one gives you the whole verdict — star note, fancy-serial type, the lot. No teasers, no blurred results, no "subscribe to see what you found". No ads, ever. The verdict is pure arithmetic on your serial number and it runs entirely on your phone.
And the first time you actually find something, RareBill shows you the complete Pro view for that note — how many were printed, what it's worth — free, so you know exactly what you'd be buying.
Your wanted list is free too. Add a birthday, an area code, or the exact serial of a note you're chasing, and every bill you scan gets checked against it — even when the serial is otherwise ordinary.
GO DEEPER (OPTIONAL)
RareBill Pro adds the research layer:
• Print-run rarity — how many notes shared your serial's exact run, from the Bureau of Engraving and Printing's own monthly production reports
• Web note detection — the experimental 1988A, 1993 and 1995 press runs, and how to confirm one from the plate number
• Value ranges from published collector price guides, with one tap through to current listings
• Unlimited collection with a running portfolio range
• Stack mode and hunt sessions — rip through a bank strap without tapping, and see your finds-per-hundred over time
• Browse the whole database — the rarest star runs on file, and how close your district sets are to complete
Pro removes the daily limit and adds the research layer. One payment of $14.99 — no subscription, no renewal, nothing to cancel. Buy it once and it is yours.
BUILT ON OFFICIAL DATA
Print-run figures come from the BEP's own monthly production reports, 2002 to today, plus the published collector record back to 1935. Every serial range shipped in the app was cross-checked against the quantities printed alongside it — if the arithmetic didn't agree, the row didn't ship.
RareBill also tells you what the lookup sites don't: small print runs are released in consecutive packs, so a low run number is not the same as a scarce note.
Values are estimates from published price guides, not appraisals. RareBill is a reference tool for collectors: it makes no claim about whether a note is genuine, and it does not check your note for printing errors — the guide explains what to look for and leaves the judgement to you.
Your camera never leaves your phone. Nothing is uploaded, nothing is stored.
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What's New in RareBill
1.0
August 21, 2026
1
In-App Purchases
$14.99
RareBill Pro Lifetime
Every Pro feature, one payment.




