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Real-time email open and click tracking for Gmail. Optional Individual Recipient Tracking via Echo Connect, Smart Follow-up. Echo is an intelligent email tracking system designed to give clear, real-time visibility into how emails are received and engaged with. It helps users understand when messages are opened, how recipients interact with content, and how conversations evolve — without disrupting the natural email workflow. Built with a strong focus on reliability, Echo ensures that every email interaction is captured accurately. Even in fast-moving or unpredictable environments, the system is designed to consistently register, queue, and process tracking data without loss.
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.