01
Record the package
A UPC lookup connects the package in hand with its available net weight, shelf price, and retailer history.
The Shrinkflation Index
The package is the evidence.
PackShrink turns a barcode into a source-linked view of package size, shelf price, and price-per-unit changes over time.
For CPG, retail & media teams: request a sample brief Source-linked records Unit-cost context
Product record
Evidence view
Comparison status
Records ready to compare
A verdict is only shown when package and price observations have a clear date range.
Review
Retailer listing
Package image
Unit-cost history
Verdict discipline
Facts first. Interpretation follows the record.
Evidence, not outrage
Built to show the work behind the verdict.
02
Show the comparison
The index separates a measurable package change from the price-per-unit movement it creates.
03
Keep the receipt attached
Listings, label photos, OCR, and GTIN changes remain part of the record for review and correction.
For every product record
Make the price-per-unit change impossible to miss.
A smaller package and a higher shelf price are more useful when they can be reviewed together, against the same evidence trail.
The record, explained
Clear answers for a complicated shelf.
PackShrink is designed to make its evidence model as understandable as the outcome.
What does PackShrink measure?+
PackShrink tracks observable changes in package size, shelf price, and price per unit over time. The product record is designed to distinguish measured changes from interpretation.
Where does the evidence come from?+
The index can connect retailer product listings, historical observations, label photos, OCR, and UPC or GTIN changes. The available records and time range belong alongside each comparison.
Does a smaller package automatically mean shrinkflation?+
No. A package change is a measurable observation. PackShrink shows the effective unit-cost movement and does not assume motive from incomplete records.
Start with the record
Every barcode has a history worth checking.
Create an account to begin exploring product records and help strengthen the public evidence base.