Exstats is a platform for competitive intelligence and browser extension analytics that helps extension developers track their competitors, understand market trends, and spot growth opportunities across the Chrome Web Store, Firefox Add-ons, and Microsoft Edge Add-ons. Browser extension stores offer limited insight into performance data. Developers usually see just a snapshot of current metrics without access to historical trends, competitor actions, or shifts at the category level. Exstats fills this gap by collecting and indexing data daily from multiple stores, giving developers a central view of their market without the need for manual monitoring. Exstats is tailored for solo extension developers, indie builders, and teams managing one or more extensions. It is useful for developers assessing new market options, tracking the impact of their own updates, or monitoring how competing extensions change over time. Key features include: - Store-level trend analytics: Aggregate metrics, category breakouts, and time comparisons across Chrome, Firefox, and Edge stores to help developers see where the market is going. - Opportunity discovery: Insights at the segment level that highlight emerging categories and fast-growing niches, allowing developers to pinpoint underserved areas before they get saturated. - Daily competitor tracking: Automated monitoring of competitor extensions with alerts about changes in metrics, listing details, version updates, and ranking shifts. - Historical metric timelines: Time-series data with daily detail, trendlines, and baselines for each tracked extension, which gives context for evaluating performance over weeks or months. Exstats indexes thousands of extensions and millions of reviews, providing depth of historical data that extension stores do not offer. The platform does not require a credit card to start and can be set up in just a few minutes. It supports developers at any stage, whether they are exploring a new extension idea, comparing against competitors before launching, or tracking long-term performance across a portfolio of published extensions.