Designed for honest comparisons
ShelfPenny calculates from information you enter. It does not provide live retailer prices or guarantee savings.
Useful on every shop
- Compare two to six compatible weights, volumes or item counts.
- Save dated observations by store and product.
- Review favourites and personal price history offline.
- Export CSV or JSON, restore a JSON backup and set an optional weekly reminder.
Free core features
ShelfPenny is free and supported by advertising. There are no purchases, subscriptions, trials, accounts or paywalls. An optional rewarded ad changes only a cosmetic card theme and never gates a feature.
Prices and availability can change. Always verify the shelf label before buying.