Side by side
AppSignal vs TrackJS
Both stand on error monitoring 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 trial APIWeb
TrackJS focuses on contextual frontend error monitoring with privacy controls, integrations, APIs, and optional AI analysis. Its paid plans, retention periods, and per-minute error limits should guide plan selection.
Visit TrackJSThe facts
| AppSignal | TrackJS | |
|---|---|---|
| Free plan | Yes | A free trial |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Web |
| Lowest paid plan | Paid plan: $279 a year | Starter: $45 a month |
| Plans published | 2 | 4 |
| Maker | Not published | Not published |
| Website | appsignal.com | trackjs.com |
| On error monitoring software | #6 of 29 | #26 of 29 |
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.
TrackJS: what it does well
- Captures several frontend error types automatically
- Timeline provides events before an error
- Optional AI debugger suggests fixes
- Small dependency-free asynchronous agent
- Offers framework and library integrations
What to know first
- No free plan is listed
- Starts at $45 a month billed yearly
- Starter retains data for 10 days
- Session replay is not included
Alternatives to AppSignal Alternatives to TrackJS The whole list