Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · IT Alerting Software

PagerDuty vs Alertmanager

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score PagerDuty #1 in IT Alerting Software 9.4/10 Free plan · 14-day trial Free planFree trial✓ 2 of 5 features Visit PagerDuty
Alertmanager #6 in IT Alerting Software 8.7/10 Free plan Free plan✓ 0 of 5 features Visit Alertmanager

PagerDuty leads on 0 checks, Alertmanager on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePagerDuty · 9.4/10
  • Free planboth
  • Free trialonly PagerDuty
  • Most featuresPagerDuty · 2 of 5

PagerDuty scores higher on our rubric for it alerting software: 9.4 against 8.7 out of 10; our editors rank them #1 and #6.

PagerDuty is the better fit for broad, mature enterprise incident response. Alertmanager is the better fit for teams routing alerts from self-hosted Prometheus.

  • PagerDuty fits best

    Broad, mature enterprise incident response

  • Alertmanager fits best

    Teams routing alerts from self-hosted Prometheus

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature PagerDuty 9.4/10 Visit ↗ Alertmanager 8.7/10 Visit ↗
At a glance
Editor score 9.4 8.7
Ranking #1 in IT Alerting Software #6 in IT Alerting Software
Best for Broad, mature enterprise incident response Teams routing alerts from self-hosted Prometheus
Pricing model Free plan + paid Free
Starting price $21/user/mo Free plan
Free plan ✓ ✓
Free trial 14 days —
Deployment Cloud, Mobile Self-hosted
Platforms Web, iOS, Android Web, Windows, macOS, Linux
Support Email, Docs, Community Community, Docs
Integrations 750+ integrations 17 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features PagerDuty 2/5 · Alertmanager 0/5
On-call scheduling ✓ (best) Not checked yet
Escalation policies ✓ (best) Not checked yet
Alert acknowledgment Not checked yet Not checked yet
Incident status pages Not checked yet Not checked yet
Mobile apps Not checked yet Not checked yet
Specs
Alert source integrations Not checked yet Not checked yet
Our review
Pros
  • 750+ integrations connect monitoring, chat, ticketing, and cloud tools.
  • On-call schedules and escalation policies route incidents automatically.
  • Status pages, workflows, and post-incident reviews support full response cycles.
  • Deduplicates and groups alerts before notification.
  • Routing trees direct notifications to configured receivers.
  • Supports silencing, inhibition and high-availability clustering.
Cons
  • The Free plan supports up to five users and one on-call schedule.
  • Advanced administration and ITSM integrations require the Business plan.
  • Professional and Business pricing is higher when billed monthly.
  • No native on-call scheduling.
  • Requires self-hosted deployment and configuration.
  • Support is through community resources and documentation.
Our verdict

PagerDuty is an incident management platform for IT operations, site reliability engineering, and developer teams. It routes alerts through on-call schedules and escalation policies, then supports coordination with incident workflows,…

Read the review →

Alertmanager handles alerts in the Prometheus ecosystem, receiving them from Prometheus and other clients before sending notifications to configured receivers. It is a fit for teams that operate their own monitoring infrastructure and need…

Read the review →
  1. PagerDutyIT Alerting Software 9.4Free plan · 14-day trial
  2. AlertmanagerIT Alerting Software 8.7Free plan

Strengths and trade-offs

  • PagerDuty — where it wins

    • 750+ integrations connect monitoring, chat, ticketing, and cloud tools.
    • On-call schedules and escalation policies route incidents automatically.
    • Status pages, workflows, and post-incident reviews support full response cycles.

    Where it doesn't

    • The Free plan supports up to five users and one on-call schedule.
    • Advanced administration and ITSM integrations require the Business plan.
    • Professional and Business pricing is higher when billed monthly.

  • Alertmanager — where it wins

    • Deduplicates and groups alerts before notification.
    • Routing trees direct notifications to configured receivers.
    • Supports silencing, inhibition and high-availability clustering.

    Where it doesn't

    • No native on-call scheduling.
    • Requires self-hosted deployment and configuration.
    • Support is through community resources and documentation.

More comparisons

All IT alerting software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update