Your personal price memory
Know what the shelf said.
See what checkout charged.
Pennumi keeps product photos, shelf labels, receipts, and the prices you confirm together—so your own shopping history becomes useful the next time you shop.
See how Pennumi worksIn development for iPhone
Local-first recordsShopping history stays on your iPhone unless you choose to export it.
You confirm the factsAutomated extraction is always a proposal—not the final record.
One record at a time
A pricebook built from real shopping
- 01
Capture what you see
Photograph a product and its shelf label, scan a barcode, or add a receipt.
- 02
Review before saving
Confirm the product, store branch, price, sale terms, and receipt details.
- 03
Compare with context
Check package sizes and your price history while considering time, distance, fuel, and extra stops.
Spend with a longer memory
Pennumi helps the details follow you home.
Shelf evidence, checkout results, loyalty prices, and receipts stay connected—ready when you need to understand what you paid and where.
Coming to iPhone