Side by side
Assertible vs Signalog
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.
Choose Assertible if you need HTTP service checks, deployment smoke tests, or API test synchronization with common specification formats and Postman collections. Look elsewhere if the Personal plan's service, test, result, or team limits do not fit; paid plans start at $25 a month.
Visit Assertible
Choose Signalog if you want monitoring, incident coordination, paging, and status pages together, with integrations for alert delivery and event ingestion. Free is a useful entry point for up to five monitors, while teams needing more monitors, status pages, regions, or shorter checks can consider the paid plans. Teams requiring SSO/SAML 2.0 need Business.
Visit SignalogThe facts
| Assertible | Signalog | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Web |
| Lowest paid plan | Standard: $25 a month | Starter: $19 a month |
| Plans published | 4 | 4 |
| Maker | Not published | Not published |
| Website | assertible.com | signalog.dev |
| On api monitoring tools | #7 of 27 | #16 of 27 |
Assertible: what it does well
- Creates HTTP assertions and shows request details and results.
- Runs smoke tests automatically after deployment to staging or production.
- Imports and syncs tests with OpenAPI, Swagger, and Postman.
- Integrates with GitHub, Slack, PagerDuty, and Zapier.
- Free tier can be used indefinitely.
What to know first
- The free Personal plan allows two web services and 10 tests per service.
- Personal retains 1,000 results and supports one to two members.
- Shorter monitoring intervals are available on paid plans.
- Paid plans start at $25 a month.
Signalog: what it does well
- Monitors endpoints, SSL certificates, heartbeats, and multi-step API workflows.
- Checks can run every 30 seconds and cover up to 10 regions.
- Groups related alerts and supports major-incident command and stakeholder updates.
- Status pages include widgets, multiple languages, and subscriber notifications.
- TOTP two-factor authentication is included on every plan.
What to know first
- Free is limited to five monitors and five-minute checks.
- Free includes one status page, two team members, and 30-day retention.
- SSO/SAML 2.0 is listed for Business.
- Additional on-call responders cost +$8/mo each on Pro and Business.
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