Side by side
Loadster Synthetic Monitoring vs Sysmos
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.
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
Choose Sysmos if you want API health checks, Linux observability, and alert routing in one monitoring service. The Free plan is sized for solo use; teams needing more monitors, regions, faster intervals, or longer retention can consider Team or Business. Business is the listed plan with unlimited monitors and flows, SSO, audit logs, and one-year retention.
Visit SysmosThe facts
| Loadster Synthetic Monitoring | Sysmos | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | No | Not published |
| Runs on | API, Extension, Linux, Mac, Self-hosted, Web, Windows | API, Linux, Web |
| Lowest paid plan | Monitoring Plans: $29 a month | Team: $29 a month |
| Plans published | 18 | 3 |
| Maker | Not published | Not published |
| Website | loadster.com | sysmos.org |
| On api monitoring tools | #4 of 27 | #17 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.
Sysmos: what it does well
- Checks APIs across multiple global regions.
- Breaks latency into five timing phases.
- API flows support variable extraction and assertions.
- Linux eBPF agent captures syscall and resource data.
- Alerts integrate with Slack, Discord, PagerDuty, email, and webhooks.
What to know first
- Free plan is limited to 10 API monitors and five flows.
- Free plan checks one region at a 60-second minimum interval.
- Free plan log retention is seven days.
- Linux agent supports x86_64 and arm64.
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