AppSignal vs Axiom
AppSignal
appsignal.comAxiom
axiom.coSide by side
| Figure | AppSignal | Axiom |
|---|---|---|
| Price from | $23.25/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 2 | 4 |
| Spec score · Monitoring Observability | 8.6 (#6) | 8.9 (#4) |
| Headquarters | Amsterdam, Netherlands and Austin, Texas (dual headquarters) | San Francisco, California, United States |
| Integrations | The site highlights Slack, GitHub, Jira, Linear, GitLab, and PagerDuty integrations. | The integrations page lists OpenTelemetry, Vector, Fluent Bit, AWS services, Vercel, Cloudflare, Kubernetes, and SDKs including Go, Python, Node.js, Rust, Java, Ruby, .NET, and Flutter. |
| Intended users | The free plan is described as suitable for startups, hobby projects, and side projects. | Axiom describes its Personal plan as intended for individual developers and small projects, and Axiom Cloud as for teams scaling from first deployment to hyperscale. |
| Product | AppSignal is an all-in-one application monitoring product for developers, with error tracking and performance monitoring. | Axiom is a machine data platform for ingesting, storing, querying, and monitoring logs, traces, metrics, and events. |
| Security | AppSignal states that it is ISO 27001 certified and GDPR and HIPAA compliant. | Axiom states that it uses TLS 1.2+ in transit and AES-256 encryption at rest, and provides tenant isolation and query-time redaction. |
| Support | AppSignal says customers can contact a real engineer through live chat or support email. | Axiom Cloud includes email support, with paid SLA and dedicated support available; the Personal plan includes community support. |
Plans
In their own words
AppSignal
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.