Where the numbers come from
Everything comes from the public Chrome Web Store. The store's sitemaps list every listing. Each listing page gives the name, publisher, category, version, update date, users, rating, size, languages, badges, screenshots and video. Chrome's update service reports the latest version. The store's review pages give the written reviews.
Chrome themes are left out; only extensions are shown. CRX Stats is independent of Google.
Users and ratings
The user count is the store's own number, which it rounds. Combined users for a category or publisher add those numbers up, so one person with two extensions counts twice.
When the store shows no value, the site says unknown, never zero.
How often listings are read
Bigger listings are read more often: every day at 100K+ users, every 3 days from 10K, every week from 1K and every 4 weeks below that. Each listing keeps one snapshot a day.
Growth is the users gained over 7 or 30 days. It appears once a listing has that many days of snapshots. If a read fails, the last good facts stay; a listing counts as removed only after it is unavailable on two separate days.
Ranks and charts
Overall and category ranks order collected listings by users. Listings with the same count share a rank. Top rated puts listings with 50 or more ratings first.
Publishers are grouped by the exact name shown on each listing.
Reviews
Reviews are read from the store's review pages, newest first, up to 3,000 per listing, starting with the most-reviewed listings. Text, stars, date and version are kept as written.
Each review is sorted into problems, feature requests or praise by English keywords, which are highlighted. Complaints and requests are then grouped into themes by meaning, each shown with real quotes.
Topics and similar listings
Topics such as PDF or translation come from keywords in a listing's name and description. The store's own category is never changed.
Similar listings, topic groups and the idea check compare names and descriptions by meaning, in any language. The language model runs on our own server.
Store activity
A change shows up once a listing has been read twice: new versions, renames, and publisher or category changes, dated when they were seen. A rename or a new publisher can hint at a sale.
Finding an acquisition target
Good leads: a big audience with a low rating, a popular listing that hasn't been updated in a long time, or a recent rename or publisher change. Revenue, costs and whether the owner wants to sell come from talking to the publisher.
Your shortlist
Saved extensions and comparison picks stay in this browser. There are no accounts and nothing syncs, so download a CSV before clearing your browser data.