Sharp, fast bill capture
Auto-landscape camera with a generous framing window. Optimized for the small text on a US bill — serial, series year, denomination — and reads them in under a second.
An iOS app for paper-money geeks
Every dollar has a story. Find out where yours has been.
Snap a photo of any US bill — single, five, ten, twenty, anything. Follow the Money reads the serial number and logs it with your location. The next time someone else photographs that same bill, you'll see exactly where it went, who held it, and how long it took to get there.
$1 → $100
Every US bill denomination
1861 → today
Years of currency recognized
All 50
States, plus US territories
What it does
Built for people who notice things on bills
Live journey maps
Every sighting of every bill — yours and other users' — plotted on a single map. Dashed flight paths with directional chevrons show exactly where each bill is moving.
Valuable-bill detection
Automatic flagging for vintage notes (pre-1928), large-size paper, star notes, fancy serials, ladders, radars, repeaters, and other collectible patterns.
Follow + message
Follow other users, browse their public bills, and DM the person who last had your bill. A real community of people who pay attention to what they're spending.
Chase list
Want a specific serial? Add it to your chase list and get notified the second anyone in the world logs it.
How it works
Three steps. That's the whole thing.
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1
Snap
Open the app, hold a bill in the frame, tap the shutter. Camera goes landscape automatically — that's where the OCR works best.
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2
Log
The app reads the serial number, denomination, and series year. You confirm the address, add an optional note, and save.
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3
Watch
When anyone else photographs that same bill, you both get notified. Open the journey map to see the route across the country.
Just shipped
Version 2.5 — out now
- Live bill journey maps — every sighting plotted with arrows showing each bill's direction of travel.
- Follow + chase — follow other users, DM them, and add serial numbers to your wanted list.
- Valuable-bill detection — vintage, fancy, star, and pre-1928 paper all flagged automatically. See what makes a bill valuable →
- Sharper scanner — auto-landscape camera with a bigger framing window for cleaner reads.
- Bug fixes and improvements — a refreshed Map tab and lots of polish under the hood.
Start your first journey today.
Free on the App Store. No ads, no subscription, no in-app purchase except the optional stamp.
Download Follow the Money