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Skylight

Freemium#30 of 37 in Application Performance Monitoring

Skylight: A focused APM for tracing Ruby endpoints, jobs, SQL activity, and deployment slowdowns. Ranked #30 of 37 in Application Performance Monitoring by our editors (6.5/10); pricing: Free plan · 30-day trial; best for ruby teams focused on endpoint performance.

6.5/10Editor score

Visit Skylight

Skylight6.5 Visit Skylight

At a glance

Editor score
6.5 / 10
Pricing
Free plan · 30-day trial
Best for
Ruby teams focused on endpoint performance
Free plan
Yes
Paid from
$20/unit usage-based
Facts checked
20 Sep 2026

Where it wins
- Detailed endpoint, SQL, allocation, and background-job analysis
- 100,000 free traces per month with usage-based scaling
- Rails, Sinatra, Grape, Phoenix, and GraphQL support
Where it doesn't
- Focused primarily on Ruby and Rails applications
- No real-user monitoring for frontend experience analysis
- No verified distributed tracing or log correlation

Our verdict on Skylight

Skylight is a web-based application performance monitoring and profiling service for Ruby and Rails applications. It is aimed at developers and teams investigating slow endpoints, background jobs, database activity, allocation issues, repeated queries, and regressions after deployments. Its reporting covers response-time distributions, event sequences, source-code locations for trace events, performance trends, slowdown warnings, and GraphQL query aggregation. Support for Rails, Sinatra, Grape, and an early Phoenix agent gives Ruby-focused teams a clear fit.

Pricing is usage-based rather than organized around several named paid plans. The Free usage option includes 100,000 free traces per month at $0 per month. The Usage-based option starts at $20 per million traces, billed monthly, with automatic tier adjustment and volume pricing available. A 30-day free trial is also offered. This structure suits teams that want to begin with a defined free allowance and scale spending with trace volume, though buyers with a preference for fixed feature tiers may find the model less predictable.

Skylight’s strongest differentiator is its depth around application performance diagnosis: endpoint timelines, aggregate request event sequences, SQL query analysis, allocation detection, repeated-query detection, deploy tracking, and background-job monitoring are all part of the feature set. Its integrations include Sidekiq, DelayedJob, ActiveJob, Redis, MongoDB, Elasticsearch, GitHub, Heroku, and GraphQL. Teams seeking focused Ruby application analysis should consider it; organizations needing real-user monitoring, distributed tracing, or log correlation should choose a broader APM platform instead.

Your product? Our editors can test Skylight in depth and publish a review, labelled as paid · from $149/mo →

Skylight pricing

Plans Free plan · 30-day trialFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 20 Sep 2026.

See plans on skylight.io

All 2 Skylight plans and prices →

Skylight fact sheet

Free plan	Yes
Paid from	$20/unit usage-based
Distributed tracing	Not verified
Transaction tracing	Yes
Dependency mapping	Not verified
Real user monitoring	No
Log correlation	Not verified
Deployment model	Cloud
Free trial	30 days · no card needed
Deployment	Cloud, Desktop
Platforms	Web, Linux, macOS
Support	Email, Live chat, Docs
Built for	Solo, Small business, Mid-market, Enterprise (editorial estimate)
Integrations	13 integrations: Ruby on Rails, Sinatra, Grape, Phoenix, Sidekiq, DelayedJob …
Pricing	Free plan · 30-day trial (source)
Website	skylight.io
Facts checked	20 Sep 2026

Skylight integrations

Skylight lists 13 integrations on its own site.

Ruby on Rails
Sinatra
Grape
Phoenix
Sidekiq
DelayedJob
ActiveJob
GraphQL
Redis
MongoDB
Elasticsearch
GitHub
Heroku

Alternatives to Skylight

See all Skylight alternatives →

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Skylight for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

Skylight is listed in our Application Performance Monitoring directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update