Observed arrival · 2026-09-16
Nostrometer measures how well Nostr apps actually interoperate
A public scoreboard that discovers Nostr apps, ranks them by recent usage, and rates their support for individual NIPs.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The project combines public-relay discovery with a 30-day usage measure based on distinct authors’ client tags. Its compatibility test requires a feature to survive a round trip through a second client, while failed count queries remain unknown instead of being treated as zero. The visible matrix covers 232 NIPs and distinguishes ordinary ratings from self-rated or unverified claims.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue