Middleware vs Sentry Continuous Profiling

Middleware is a hybrid observability platform for detecting and resolving issues across infrastructure, application performance, and real-user monitoring. Its listed coverage includes infrastructure monitoring, logs, metrics, distributed tracing, database monitoring, synthetic monitoring, browser testing, and LLM observability. The AI SRE Agent and OpsAI capabilities include root cause analysis, automatic issue detection, faster issue solving, and automatic PR generation. The Free Forever plan costs nothing and includes up to 100GB of data, 1k RUM sessions, 20k synthetic checks, 10 browser test runs, and 2 million OpsAI tokens, with 14-day retention and community support. Pay As You Go costs $0.30 a month, billed according to use, with default 30-day retention. Middleware lists 450+ integrations and a Public API. It runs on Android, iOS, Linux, macOS, web, Windows, and API. The company says it encrypts customer data in transit and at rest using TLS 1.2+ and AES-256.

Sentry Continuous Profiling helps teams locate backend performance bottlenecks in Node.js and Python code, down to functions and lines. Continuous profiles can run for unlimited durations. An Aggregate Flamegraph summarizes project performance without requiring a single transaction as its scope. Developers can control profiling manually with SDK APIs or configure it to follow a trace lifecycle, starting when a root span is active. UI Profiling covers iOS, macOS and Android, with browser JavaScript and Electron also listed. Sentry says profiling requires performance monitoring to be enabled in the app, and availability for continuous profiling depends on the SDK. Continuous and UI Profiling use separate profile-hour billing measures and are available through pay-as-you-go usage. Sentry lists a free plan and paid pricing from $26/mo. Its integrations include GitHub, Jira, Slack, GitLab, Linear, Microsoft Teams and PagerDuty. Sentry says its service is hosted on Google Cloud Platform and has SOC 2 Type 2 and ISO 27001 certification and a HIPAA attestation.