Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.
from $49.99/mo
About AppSignal
What is AppSignal?
AppSignal is a unified application performance monitoring (APM) platform that combines error tracking, performance monitoring, logging, and distributed tracing into one interface. It helps developers quickly identify and resolve issues in their applications, from the first deploy to large-scale production systems.
Who is it for?
AppSignal is built for developers and engineering teams who need a reliable, low-noise monitoring solution. It's ideal for startups, side projects (with a generous free plan), and growing teams that want to avoid expensive, fragmented monitoring stacks. It's not designed for non-technical stakeholders or teams that need heavy business analytics dashboards.
Key use cases
Catch exceptions before users do with grouped error tracking. Identify slow database queries and N+1 queries with automatic performance monitoring. Search logs without SSH, trace requests end-to-end across services, and create custom metrics dashboards. Used by teams at all stages to reduce downtime and debug faster.
Key features
- Error Tracking — Every exception grouped by pattern, with backtrace and deploy info, so you see trends not noise.
- Performance Monitoring — Automatic response times, throughput and slow query detection from first deploy.
- Distributed Tracing — End-to-end request tracing across services to find bottlenecks.
- Log Search & Filter — Full-text search across logs with attribute filters, no SSH needed.
- Custom Metrics & Dashboards — Send any metric; dashboards auto-build and can be customized.
- Anomaly Detection — Smart alerts on metrics with warmup/cooldown periods.
- Uptime Monitoring — Free public status page with ping from four locations and downtime alerts.
SaaSpartout Score
8.1
/10
Editorial score from our review methodology — not user ratings.
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AppSignal Pricing
AppSignal pricing: from $0/mo (free plan). Billing model: Freemium.
For comparison: the median starting price in Developer Tools is $19.99/month, measured across 301 tools we track. See the full SaaS Pricing Index →
Free Plan
$0/mo — 50K requests, 1GB logging, 5-day retention. Ideal for startups, hobbies, or side projects.
Paid Plan (yearly)
€219/year (€18.25/month) — 250K requests/month, 1GB logging included, plus all APM features. 30-day full-featured free trial available, no credit card needed.
Paid Add-ons
Long-term log storage (€89/month) — automatic export to S3-compatible storage. HIPAA Compliance (€89/month) — protect sensitive data. Business features including SAML SSO and US hosting available on request.
Frequently asked questions
Is AppSignal free?
Yes, AppSignal offers a permanent free plan with 50K requests, 1GB logging, and 5-day retention.
How much does AppSignal cost?
The paid plan starts at €219/year (€18.25/month) billed yearly for 250K requests/month. A 30-day full-featured free trial is available.
Who is AppSignal best for?
It's best for developers and engineering teams who need all-in-one APM with error tracking, performance monitoring, and logging in a single tool.
What are top alternatives to AppSignal?
Popular alternatives include Datadog, New Relic, Sentry, and Scout APM. AppSignal is often chosen for its simpler pricing and developer-friendly interface.
Does AppSignal support distributed tracing?
Yes, AppSignal offers distributed tracing (beta) that traces every request end-to-end across services to identify bottlenecks.
What is AppSignal used for?
It is used for error tracking, performance monitoring, log management, distributed tracing, and custom metrics dashboards to monitor applications in production.
