Shopify keeps only the current price and cost. PriceLedger records every change from the day you install it: price, compare-at price and cost per item, in real time, with a daily full check that catches anything missed. Past history can't be imported. See each variant's price and cost over time, find what sells below cost or under your margin target, and spot compare-at prices lower than the price. Filter and export the change log to CSV. Read-only: it never edits your products.

• Full history of price, compare-at price and cost per item for every variant
• Alerts for variants priced below cost, wrong compare-at prices and big jumps
• Margins page with profit per item and margin %, lowest margin first
• Change log filtered by field, period or product, with CSV export
• Read-only: never edits your products and stores no customer data