# Skylight

> A smart profiler for Ruby and Rails applications

- **Canonical URI:** https://www.vioscale.ai/software/skylight
- **Category:** APM Tools
- **Homepage:** https://www.skylight.io
- **Also known as:** skylight
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-03T13:15:41.649Z

## Vioscale score

**64.5 / 100**, confidence 29% (low).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 50 | 8 | 400 | ✓ |
| reliability | 50 | 30 | 1500 | ✓ |
| capabilities | 74.7 | 12 | 896.7 | ✓ |
| integrations | 0 | 16 | 0 | - |
| security_posture | 0 | 22 | 0 | - |
| pricing_transparency | 100 | 12 | 1200 | ✓ |

## Pricing

_As of 2026-08-03, [verify at source](https://www.skylight.io). Independently observed._

from $20/mo · Subscription · Free tier

> From $20/month. Free tier with 100k traces/month. Open source apps free.

| Plan | Price | Free | Commitment |
|---|---|:--:|---|
| Free | Free | ✓ | monthly |
| S | $20/month | - | monthly |
| M | $100/month | - | monthly |
| L | $250/month | - | monthly |
| XL | $370/month | - | monthly |
| XXL | $470/month | - | monthly |

### Free

**Included limits:** traces: 100k/mo

- 100,000 free traces per month

### S

**Included limits:** traces: 1M/mo

- 1 million traces per month

### M

**Included limits:** traces: 5M/mo

- 5 million traces per month

### L

**Included limits:** traces: 20M/mo

- 20 million traces per month

### XL

**Included limits:** traces: 50M/mo

- 50 million traces per month

### XXL

**Included limits:** traces: 100M/mo

- 100 million traces per month

## About

Skylight visualizes performance data to help identify and fix bottlenecks in Ruby and Rails apps. It includes endpoint analysis, SQL profiling, deploy tracking, and background job monitoring.

_Independently observed._

## Platform & deployment

- **Platforms:** Web
- **Deployment:** Cloud / SaaS

## Capabilities

_The capabilities that matter for APM Tools. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Instrumentation** | |
| Auto-instrumentation | ✓ |
| Distributed tracing | - |
| **Insight** | |
| Service map | - |
| Code / continuous profiling | ✓ |
| Database monitoring | ✓ |
| Error analytics | ✓ |
| Real-user monitoring | - |
| **Intelligence** | |
| Anomaly / root-cause AI | ✓ |
| **Standards** | |
| OpenTelemetry support | - |
| **Core** | |
| Language agents | Ruby (Rails, Sinatra, Grape) |
| **Deployment** | |
| Hosting | Cloud only |
| **Insight** | |
| SLO / error-budget tracking | - |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://www.skylight.io) | 2026-08-03 | 60% (medium) |
| pricing.model | freemium | [link](https://www.skylight.io) | 2026-08-03 | 60% (medium) |
| pricing.price_level | mid | [link](https://www.skylight.io) | 2026-08-03 | 60% (medium) |
| pricing.starting_gbp | 20 | [link](https://www.skylight.io) | 2026-08-03 | 60% (medium) |
| pricing.transparent | yes | [link](https://www.skylight.io) | 2026-08-03 | 60% (medium) |

### reliability

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| reliability.status_page | yes | [link](https://status.skylight.io) | 2026-08-03 | 60% (medium) |

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*Source: Vioscale (https://www.vioscale.ai/software/skylight). Independent, evidence-based software intelligence. Cite the canonical URI.*