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Analytics, scheduling, and prompt templates for Substack Notes - right in your browser, no account required. NotesIQ is an analytics and scheduling tool for Substack Notes, built entirely into your browser's side panel. No account, no sign-up, no data leaves your device. Track your own Notes • Notes tracked, day streak, total likes/restacks/comments, and your top-performing Notes • Content Type Breakdown: see which kind of Note (Personal Story, Question, List/Tips, Quote/Repost) gets the most engagement • Best Time Heatmap: a 7-day x 6-time-slot map of when your Notes do best • Trend Analytics: weekly volume and daily engagement charts, with an All-Time view going back to your very first tracked Note (Substack's own dashboard only shows 90 days) • Viral Alert: a banner the moment a Note is doing meaningfully better than your own average • Evergreen Recycler: surfaces old Notes (60+ days) that did well, one click to reuse them • Subscriber Growth: auto-detects your subscriber count from your public profile and tracks it over time Community feed • Aggregate analytics across every Note you've scrolled past on Substack, not just your own Compose and schedule • Post or schedule a single Note through Substack's own native composer and scheduler • Queue tab: load up a whole week's worth of Notes at once, with one-click best-time autofill Competitor research • Look up any public Substack handle to see their content mix, posting patterns, and best times Top Fans • A leaderboard of who restacks and comments on your Notes the most Bookmarks • Save any Note (yours, a competitor's, from your feed) for later reuse Prompt Templates • 8 copy-paste prompts for ChatGPT or Claude, some pre-filled with your own top Notes Backup and export • Full backup/restore as a JSON file, CSV export, and a Media Kit export for sponsor pitches Pricing A one-time $4.99 Lifetime payment unlocks everything. 7-day money-back guarantee.
Oct 18, 2026
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.