About

Skylight is a smart profiler for Ruby and Rails applications. It collects performance traces from web requests and background jobs, then turns them into endpoint-level views, trends, and deploy comparisons.

The product focuses on identifying slow endpoints, showing where time is spent in endpoint sequences, and highlighting performance changes after redeploys. The pricing page states that every account gets 100,000 free traces per month, and that Skylight is free for open source apps.

  • Ruby and Rails application profiling
  • 100,000 free traces per month
  • Endpoint agony ranking
  • Endpoint sequence timing breakdowns
  • Deploy comparison graphs
  • Open source app support

Free Tier Value

58
FTV score
Est. value$10 / month
Credit cardNot required
Feature parity55%

This free tier includes 100,000 traces every month, which is a meaningful capped allowance rather than a tiny trial. Since the cheapest paid tier starts at $20/month, that free allowance is worth about half of the entry plan’s value, so roughly $10/month; open source apps also get free access, and the page says no credit card is required to start.

What's included in the free tier

  • 100,000 free traces per month across all apps.
  • Free access for open source apps.

Paid plans

Starter

$20 / mo
free traces
100,000/month
monthly traces
tier starts above 100,000
  • Monthly billing based on traces across all apps
  • Automatic tier adjustment by usage
  • Volume pricing available by email

Pricing extracted from Skylight's pricing page. Always verify current pricing before committing.