Compute the days between neighboring purchases for each identity; for example, drop same-day duplicates and see how often they return.
Map customer and purchase-date columns to compute days between neighboring buys (same-day duplicates dropped). Sample and blank Excel templates. Runs in the browser; no signup.
Upload an Excel workbook with an identity and a purchase date. Same-day duplicates are removed first.
Download the template pack for a filled sample workbook and a header-only blank workbook. Map the required columns, compute in the browser, then export a result sheet. No signup.