AppSignal vs BugSnag

AppSignal is a cloud application-monitoring service for developers, with error tracking, performance monitoring, logs, and tracing. Error tracking groups exceptions with backtraces and the deployment linked to each issue. Performance monitoring covers response times, throughput, slow endpoints, and slow queries. Log management provides full-text search, attribute filters, saved queries, live tail, and pattern-based alerts. Distributed tracing, transaction tracing, and log correlation are available. AppSignal lists support for Ruby, Elixir, Node.js, JavaScript, Python, Go, Java, PHP, and Rust, with integrations including Slack, GitHub, Jira, Linear, GitLab, and PagerDuty. Its MCP server lets AI assistants such as Claude, Cursor, and Zed query production errors, traces, and deploys. The free plan costs nothing and includes 30K requests, 1GB logging, five-day retention, and unlimited users, teams, applications, and dashboards. Paid access is $279 a year, billed yearly at $23.25/month, with 250K requests per month. A 30-day full-featured trial requires no credit card. AppSignal says it does not charge overages or stop monitoring when limits are crossed.

BugSnag monitors mobile and web applications to help development teams find errors, resolve them, and deploy stable releases. Its error inbox groups issues by root cause and sorts them by user impact. Captured diagnostics can include stack traces, threads, breadcrumbs, device details, and user information. Stability Center provides a 30-day stability score and trend analysis for each application, while performance monitoring captures app starts, screen loads, and Web Vitals. BugSnag provides error-reporting libraries for more than 50 platforms, including Android, iOS, JavaScript, macOS, Flutter, and React Native. Integrations named include Slack, Microsoft Teams, PagerDuty, OpsGenie, GitHub, GitLab, Jira, Splunk, and Amazon SQS. The Free plan lists one user, 7,500 events and 1 million spans per month, and seven days of data retention; a 14-day free trial is also listed. Select and Preferred list 60 days of retention. Enterprise offers custom retention and can be hosted on customer infrastructure or a cloud instance. Enterprise security features include two-factor authentication, SAML single sign-on, sensitive data management, and user audit logs.