About & methodology

AI Stack Tracker records the pricing, plans and features of AI, marketing and productivity SaaS tools.

• Official sources only. Data comes from each vendor's own pricing page; every record carries its source URL and capture date.
• No guessing. If a page can't be read reliably (e.g. prices rendered by an interactive slider), we mark it data pending rather than estimate.
• Dated changes. Re-captures are compared to prior ones; differences are logged in the changelog.
• Promotions are noted separately from list prices.
• Open data. tools, plans, price_points, features, changes.