Carriers re-weigh and re-measure packages after you ship, and Shopify logs the extra charge on the order timeline days or weeks later. This app reads those timeline entries and totals the carrier adjustments by carrier and by order for up to 12 months, with the weight difference when available. One click setup, and it does not ask for customer names, addresses or emails.
Our plain-English summary of apps.shopify.com/shipping-auditor, checked Oct 26, 2026.
Brands buying labels through Shopify Shipping that want to know how much carrier adjustments cost them before picking a box size or packaging change.
Based on Plainwharf Shipping Auditor’s public positioning (source above).
Pricing as listed: Free.
From apps.shopify.com/shipping-auditor, checked Oct 26, 2026. Prices change; check before you buy.
New: Went live on the Shopify App Store on Oct 21, 2026.
From apps.shopify.com, read Oct 26, 2026.
From our Oct 9, 2026 storefront scan. Top-graded = the 20 highest Brand Tested Scores with Tech Stack left out, so the stack never grades itself (why).
Compare your stack against the top 20.
Tick it against your own store in the browser. Built from what the 121 brands we list do.
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