PagerTree is described as 'On-Call. Simplified. Intelligent alert routing for the modern team' and is an app. There are more than 10 alternatives to PagerTree for a variety of platforms, including Web-based, Android, iPhone, SaaS and Mac apps. The best PagerTree alternative is Cabot, which is both free and Open Source. Other great apps like PagerTree are TaskCall, Squadcast, PagerDuty and OpenDuty.
Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerDuty, Server Density, Pingdom and Nagios without their cost and complexity.
TaskCall is an incident response system for IT and DevOps that reduces your resolution time by automating the response process.
Squadcast is an end-to-end incident response platform that helps tech teams adopt SRE best practices to maximize service reliability, accelerate innovation velocity and deliver outstanding customer experiences.
Full-Stack Visibility and Actionable Insights for Better Software and Better Customer Experiences
Zenduty is an incident management platform that provides cross-channel (Email, Phone/SMS, Slack) alerts to your team when critical incidents occur and help your team preempt, minimize and resolve downtime to ensure that your customers stay happy.
Splunk On-Call is incident management software purpose-built for DevOps. From fast forensics to rapid remediation, we empower engineering and operations teams to work together, solve problems faster, and continuously improve in high-velocity deployment environments.
iLert is an incident and on-call management platform for DevOps teams. iLert helps you to respond to incidents faster by adding on-call schedules, SMS, and voice alerts to your existing monitoring tools.
Pager Team is a simple, robust, zero-config on-call rotation management system that you only pay for when you need it. It's easy to use, so you can't mess up and leave nobody on-call. It respects shift swaps between two members, and won't move the schedule leaving...
Callgoose SQIBS is a next-gen IT automation & incident management platform. It offers real-time alerts, auto-remediation, on-call scheduling & seamless integrations.
OnPage is the industry leading Secure Incident Management System with its unique ALERT-UNTIL-READ technology. Built around the incident resolution life-cycle, the platform enables organizations to automate the incident notification process.
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They do more than just on-call and alerting. They have a lot of features around SRE and Incident Management like SLO dashboard, executable runbooks, postmortems, automated incident timeline and status page.