Tracked since 5 Sept 2026

Daily readings on both stores, taken by us. As of 24 Sept 2026.

Installs and downloads per day, last 7 daysDay-over-day change in each store's counter, with release markers.
7d30d90d1yAll

Each bar is one day’s change in the store’s own counter. Open VSX counts a download on every update, so a day includes updates by people who already had it. Days before 5 Sept are reconstructed from public archives rather than read by us.

Seven days here. Tracking adds every day since 5 Sept 2026, with release markers.Track this extension

Where Lean 4 ranks in search

Positions observed daily on both stores. Neither store publishes this, and the two run separate search engines over separate catalogues.

Track this extension
Daily search positions for Lean 4 on the VS Code Marketplace and Open VSX, one row per search phrase.
SearchMarketplaceOpen VSX
markdown—#638of 1,087↓7 7d
language—#424of 2,179↑21 7d

3 more searches, day-by-day history, and the extensions ranked above it.

VS Code Marketplace search ranking: measuring jitter and real movement →

Marketplace
Installs
183,704+1.7% 7d
Rating
4.6from 5 ratings
Rank in Programming Languages
#551of 22,193
Latest
v0.0.24018 Sept 2026

455 releases · first published Jan 2021

Open VSX

Why the Open VSX download count looks inflated →

Downloads
140,404+4.5% 7d
Rating
5.0from 1 reviews
Rank in Programming Languages
#232of 4,440
Latest
v0.0.24018 Sept 2026

Downloads count every update, not unique installs.

What the publisher says

Lean 4’s own readme, changelog and license, as published to the VS Code Marketplace.