CardStack

It aggregates credit‑card statements, benefits, and reward offers into a single view, automatically tracking earned credits and flagging missed or suboptimal usage. The system calculates the return on investment for annual fees and shows the monetary value of points, miles, and statement credits, helping users decide whether a card remains worthwhile.

An integrated AI agent answers queries about a wallet’s balances, points, and rewards, and can enroll eligible offers from providers such as American Express and Chase on autopilot. While shopping, the extension surfaces relevant offers so users can capture discounts without manual entry.

The tool supports cards from multiple issuers, including Amex, Chase, Capital One, and Bilt, and presents a concise dashboard that highlights upcoming expirations, resets, and the optimal card for each purchase category. It is positioned as an experimental, self‑service solution for consumers who want to maximize credit‑card rewards without spreadsheets or manual tracking.