Side by side
AppSignal vs HyperDX
Both stand on application performance & observability - midmarket software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
AppSignal covers errors, performance, logs and tracing, with a free plan and annual-billed paid access. Its stated limits and five-day free-plan retention are useful details to weigh when choosing a plan.
Visit AppSignal Free plan Open source APILinuxSelf-hosted+1
HyperDX combines several production signals with search, visualization, alerts, and linked session replays. Check the plan’s retention and usage limits against your needs, since extra data and metrics can add charges.
Visit HyperDXThe facts
| AppSignal | HyperDX | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | API, Web | API, Linux, Self-hosted, Web |
| Lowest paid plan | Paid plan: $279 a year | Starter: $20 a month |
| Plans published | 2 | 3 |
| Maker | Not published | Not published |
| Website | appsignal.com | hyperdx.io |
| On application performance & observability - midmarket software | #4 of 26 | #1 of 26 |
AppSignal: what it does well
- Free plan includes unlimited users and dashboards.
- 30-day full-featured trial needs no credit card.
- Supports nine listed programming languages.
- MCP server lets AI assistants query production data.
- No overage charges or monitoring stops at plan limits.
What to know first
- Free plan retains data for five days.
- Paid access starts at $23.25 per month with annual billing.
- Free plan includes 30K requests and 1GB logging.
HyperDX: what it does well
- Free plan includes 3 GB monthly.
- Searches events without complex query syntax.
- Links session replays to backend logs and traces.
- Alerts can notify through Slack, email, or PagerDuty.
- Supports cloud and self-hosted deployment.
What to know first
- Free plan retention is three days.
- Free plan allows up to one user.
- Starter charges extra for data above 50 GB monthly.
- Metrics usage can incur additional charges.
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