Side by side
Loadster Synthetic Monitoring vs Sentinel
Both stand on api monitoring tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIExtensionLinux+4
Loadster combines scripted monitoring, diagnostics, alerts, and status pages, with options for public or self-hosted checks. Consider its listed starting price and whether your monitoring needs require a self-hosted engine.
Visit Loadster Synthetic Monitoring Free plan APIExtensionMac+1
Choose Sentinel if you need multi-region website and infrastructure monitoring with broad checks, alerts, and status pages. The Free plan covers up to 10 monitors, while paid monthly plans add capacity and features; check the plan limits that fit your monitor and status-page needs.
Visit SentinelThe facts
| Loadster Synthetic Monitoring | Sentinel | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | No | No |
| Runs on | API, Extension, Linux, Mac, Self-hosted, Web, Windows | API, Extension, Mac, Web |
| Lowest paid plan | Monitoring Plans: $29 a month | Starter: $14 a month |
| Plans published | 18 | 4 |
| Maker | Not published | Not published |
| Website | loadster.com | sentinel.rootstuff.io |
| On api monitoring tools | #4 of 27 | #11 of 27 |
Loadster Synthetic Monitoring: what it does well
- Checks can run as frequently as every minute.
- Supports multi-step scripted journeys.
- Offers eight locations across five continents.
- Retains logs, traces, and relevant check details.
- Hosted status pages support private or public sharing.
What to know first
- Pricing is listed from $29/mo.
- Some sites require a self-hosted Loadster Engine.
- Hosted custom domains require control of DNS.
Sentinel: what it does well
- Checks cover uptime, certificates, DNS, domains, page keywords, APIs, ports, and jobs.
- Checks run from four regions as often as every 30 seconds.
- Alerts reach email, SMS, Slack, Discord, Telegram, Teams, or webhooks.
- Customizable status pages include incident history.
- MCP access lets compatible AI agents query monitors and assist with incident triage.
What to know first
- Free checks run every five minutes and cover up to 10 monitors.
- Free includes one public status page.
- The macOS app requires macOS 13.0 or later and a read-only API token.
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