Intelligent shopping analytics.
Presenting Costco Wrapped
Unlock insights into your wholesale lifestyle. Secure, private, and local-first analytics for your Costco shopping history.
Easy to Use
Get started in seconds. Automatically detects your region (US or Canada) and guides you through the process.
Private by Design
Your data never leaves your browser. Cartology runs entirely locally on your device.
Visual Analytics
Beautiful charts and a "Wrapped" style year-in-review presentation.
Data Analysis
Deep dive into your shopping history. Filter by deals, categories, and spot spending trends.
Multi-Member Support
Track spending for specific members of your household.
Global Language Support
Fully localized in English, Spanish, French, Chinese, Korean, Japanese, Vietnamese, Tagalog, and Thai.
How it Works
See it in Action
Frequently Asked Questions
How do I use Multi-Member support?
Log in to Costco.com with the first member account and run the extension to Retrieve Data. Then, log out, sign in with the second member's account, and retrieve data again. A dropdown menu will appear in the extension, allowing you to switch between household members.