How comparisons work
Enter a positive price and pack quantity for each option. Select two to six observations with the same measurement type. ShelfPenny compares weight with weight, volume with volume, or counts with counts.
Price accuracy
Entries are your observations. Check the shelf label, pack and date before relying on a result; retailer prices and availability can change.
Export and restore
Open Settings to export CSV, export a JSON backup, or restore a ShelfPenny JSON backup. Restoring replaces the current local price book only after confirmation.
Ads and consent
Consent choices are requested where required. If ads cannot be requested, every price-book feature remains available. The rewarded ad in Settings is optional and changes only a cosmetic card theme.
Contact
Email tools@softwarehouse.au. Include “ShelfPenny”, the app version, device, operating-system version and steps that reproduce the problem. Do not send private price-book exports unless necessary.