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SPECIFICTION
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HeyOnCall

heyoncall.com

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Spec score 8.4 #7 of 25 in On-Call Scheduling Software

What it is

HeyOnCall combines website and API monitoring with incident management and on-call paging. Checks cover HTTP and HTTPS availability and performance, response assertions, redirects, and request or response inspection. SSL monitoring validates certificates and chains and can warn before expiration; heartbeat and cron monitoring are also included. Teams can set timezone-aware rotations, change or trade shifts, and sync Google Calendar, Outlook, or iCalendar feeds. Unacknowledged incidents can escalate to another user, a rotation, or everyone in a rotation. Its iOS and Android Critical Alerts can bypass Do Not Disturb, silent or vibrate modes, and volume settings, and repeat until acknowledged. Alert sources include Datadog, Prometheus Alertmanager, Uptime Kuma, and other webhook-capable tools; notifications can be sent through Slack, email, Telegram, or webhooks. The API supports custom triggers, incident resolution, and custom payloads. Plans are billed monthly: Free Trial for evaluating is free, Solo is $3 a month, and Pro is $32 a month. The evaluation plan limits users and triggers, while paid plans are limited to 1000 triggers of each listed type.

Spec sheet

Product
HeyOnCall combines website and API monitoring, heartbeat and cron monitoring, SSL checks, incident management, on-call schedules, escalations, and alert delivery.Read 30 Sep 2026 · heyoncall.com
Audience
The product is for small engineering teams and solo founders seeking reliable paging, simple setup, and fewer moving parts.Read 30 Sep 2026 · heyoncall.com
API
Custom application triggers can fire alerts and resolve incidents through the API, and the product supports custom payloads.Read 30 Sep 2026 · heyoncall.com
Integrations
Listed monitoring sources include Datadog, Prometheus Alertmanager, Uptime Kuma, and other webhook-capable tools; alert channels include Slack, email, Telegram, and webhooks.Read 30 Sep 2026 · heyoncall.com
Support
The maker directs users with pricing questions to [email protected] and invites feature questions by email.Read 30 Sep 2026 · heyoncall.com
Founded
2022Read 28 Sep 2026 · heyoncall.com
Company
HeyOnCall was built by two engineers who met at MIT EECS and launched the product in 2022.Read 30 Sep 2026 · heyoncall.com
Alerting
Its iOS and Android Critical Alerts can bypass Do Not Disturb, silent/vibrate modes, and volume settings, and repeat until acknowledged.Read 30 Sep 2026 · heyoncall.com
Escalations
Unacknowledged incidents can escalate through configurable levels to another user, rotation, or everyone in a rotation.Read 30 Sep 2026 · heyoncall.com
Monitoring
Website and API monitoring includes HTTP/HTTPS uptime and performance checks, response assertions, redirects, and request/response inspection.Read 30 Sep 2026 · heyoncall.com
Notable limit
The pricing page limits each paid plan to 1000 triggers of each listed type, while the free evaluation plan limits the user count to 10 and has fewer triggers.Read 30 Sep 2026 · heyoncall.com
On-call
On-call rotations support timezone-aware scheduling, shift edits and trades, and calendar integration with Google Calendar, Outlook, and iCalendar feeds.Read 30 Sep 2026 · heyoncall.com
Operator
The terms identify the operator as CircuitLab, Inc., a Delaware corporation.Read 30 Sep 2026 · heyoncall.com
SSL checks
SSL monitoring validates certificates and chains and can warn before a certificate expires.Read 30 Sep 2026 · heyoncall.com

Plans and prices

Free Trial for evaluating Free $0 / month total (not per user) 10 users · 3 outbound probe triggers · 1 each inbound liveness, Datadog, Prometheus, and manual trigger · all on-call scheduling · HEAD requests only; no request headers or body Read 30 Sep 2026 · heyoncall.com
Free Trial for evaluating Free $0 / year total (not per user) 10 users · 3 outbound probe triggers · 1 each inbound liveness, Datadog, Prometheus, and manual trigger · all on-call scheduling · HEAD requests only; no request headers or body Read 30 Sep 2026 · heyoncall.com
Solo for individuals $3 a month $3 / month total (not per user) 1 user · 1000 triggers per listed type · no on-call scheduling · HEAD/GET/POST/PUT/PATCH requests with custom headers and body Read 30 Sep 2026 · heyoncall.com
Solo for individuals $30 a year $30 / year total (not per user) 1 user · 1000 triggers per listed type · no on-call scheduling · HEAD/GET/POST/PUT/PATCH requests with custom headers and body Read 30 Sep 2026 · heyoncall.com
Pro for teams $32 a month $32 / month total (not per user) Unlimited users · 1000 triggers per listed type · all on-call scheduling · HEAD/GET/POST/PUT/PATCH requests with custom headers and body Read 30 Sep 2026 · heyoncall.com
Pro for teams $320 a year $320 / year total (not per user) Unlimited users · 1000 triggers per listed type · all on-call scheduling · HEAD/GET/POST/PUT/PATCH requests with custom headers and body Read 30 Sep 2026 · heyoncall.com

Every HeyOnCall plan and price →

Strong points and limits

Strong points

  • Monitors websites, APIs, SSL, heartbeats, and cron jobs
  • Timezone-aware rotations support shift edits and trades
  • Unacknowledged incidents can escalate through configurable levels
  • Critical Alerts can repeat until acknowledged
  • API supports custom triggers and payloads

Limits

  • Solo has no on-call scheduling
  • Evaluation plan is limited to 10 users
  • Paid plans cap each listed trigger type at 1000

Who it suits

It is aimed at small engineering teams and solo founders looking for monitoring, paging, and on-call scheduling. Solo has no on-call scheduling; Pro includes it and allows unlimited users.

Verdict

HeyOnCall lays out monitoring, paging, scheduling, integrations, and monthly plan limits. Compare the evaluation plan's restrictions with the scheduling and trigger needs of the intended team.

Where Specifiction places it

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