Chronosphere Application Observability vs Skylight

Chronosphere Application Observability is a cloud service for helping teams find and resolve problems in cloud-native applications and microservices. Chronosphere Lens creates service views aligned with an application’s architecture. Teams can use RED metrics and service-level objectives to understand performance and service dependencies, while metrics, logs, traces, and events are correlated with system changes and their effects. Distributed tracing maps request paths across components to help locate latency and inter-service communication issues. Dynamic trace sampling is offered to balance observability insight with cost. The service accepts open telemetry formats including Prometheus and OpenTelemetry. Listed alerting connections include Slack, PagerDuty, OpsGenie, VictorOps, email, and a general-purpose webhook. Pricing for the Observability Platform is based on useful data retained and customized for each organization; no price is listed. Pilots are typically free and average 2–3 weeks, though large-scale or long-term pilots may be paid. A free trial is offered, but there is no free plan. Customer support includes year-round, 24/7 communication through Slack, Zendesk, or email, with optional office hours and calls.

Skylight is a cloud profiler for Ruby and Rails applications, available through API, Linux, macOS, and web platforms. It ranks endpoints by “agony,” combining popularity with response time, and plots deployments against performance so teams can relate code changes to results. Supported Ruby frameworks include Rails, Sinatra, and Grape. Skylight analyzes Sidekiq, DelayedJob, and ActiveJob background queues, and can flag allocation-heavy code and repeated queries. Endpoint timelines present aggregated, sanitized SQL queries. GraphQL queries are grouped by name in the dashboard and endpoint event sequences. A weekly report identifies improved endpoints, slowdown warnings, and endpoints that declined over six weeks. Each account includes 100,000 free traces per month. Paid tiers start at $20 a month and adjust to monthly trace volume across apps. A 30-day trial is available without a credit card. Open-source apps may apply for free public reporting. Communications are encrypted, and access to customer information is limited to selected personnel and contractors.