selfhost.directory

The index of self-hostable projects — ranked, categorized and served with live updates.
Own your data and stop giving it to big tech.

Apache SkyWalkingvsUnderstudy

Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

Apache SkyWalkingUnderstudy
Score76/10048/100
Rank in category#2 of 9 in Application Performance Monitoring#110 of 209 in AI Agents
GitHub stars24 978465
Stars, last 30 days+4+0
Stable releases, 12 months30
Latest releasev11.0.0 · 28 Aug 2026—
SetupAdvancedModerate
Official Docker imageYesNo
LicenseApache-2.0MIT
Main languageJavaTypescript

Which one should you pick?

Apache SkyWalking scores 76/100 against 48/100 for Understudy, so it is the safer default.

Apache SkyWalking ships more often: 3 stable releases in the past year, against 0 for Understudy.

If you want the quickest setup, Understudy is easier to run; Apache SkyWalking needs more configuration.

Apache SkyWalking is growing faster right now (+4 stars in 30 days).

Swap a project

Keep Apache SkyWalking, compare it with
Keep Understudy, compare it with