Overview

Founded in 2017 and headquartered in Germany, ilert is an alert management and on-call scheduling platform within the monitoring, alerting, and incident response ecosystem. Rather than providing native monitoring, ilert functions as an "alert hub" — it ingests alerts from 100+ monitoring systems including Prometheus, Grafana, Zabbix, Nagios, Datadog, and AWS CloudWatch, then routes, deduplicates, and escalates them to the right on-call personnel via flexible scheduling policies.

ilert serves over 5,000 enterprise customers globally and is the primary PagerDuty alternative in the European market. The platform emphasizes GDPR compliance and data residency, with all data stored in German data centers.

Key Strengths

  • 100+ Monitoring Integrations: Pre-built connectors for Prometheus, Grafana, Zabbix, Nagios, Datadog, AWS CloudWatch, Azure Monitor, Sentry, Checkmk, and more. See Monitoring & Alerting Guide.
  • Flexible On-Call Scheduling Engine: Supports 4+ scheduling modes including daily/weekly rotations, ad-hoc scheduling, and holiday skipping. Multi-level escalation policies (e.g., 5 min unacknowledged → escalate to manager, 10 min → escalate to director).
  • Global Notification Delivery: Phone voice alerts, SMS, mobile push, Slack, Microsoft Teams, email, Webhook. Phone alerts achieve a 99.9% global delivery rate with customizable notification templates and quiet hours.
  • Alert Analytics & Status Pages: Built-in analytics dashboard tracking 2 key metrics — MTTA and MTTR. Auto-generated status pages for external service availability display.

Product Ecosystem

Core Alert Management Workflow

Alert ingestion → deduplication & aggregation → route to on-call → multi-channel notification → acknowledge & escalate → resolve & postmortem.

On-Call Scheduling

Supports daily/weekly/custom rotations, ad-hoc scheduling, and holiday schedules. Syncs with Google Calendar and Outlook so on-call personnel can view schedules without logging into ilert.

Integration Marketplace

100+ pre-built integrations including monitoring tools (Prometheus, Grafana, Zabbix), ITSM platforms (ServiceNow, Jira Service Management), collaboration tools (Slack, Teams), and CI/CD tools.

Limitations

  • No Native Monitoring: ilert is a pure alert management platform requiring external monitoring tools. If your team lacks monitoring infrastructure, start with Prometheus or Grafana.
  • Higher Cost for Small Teams: Free tier supports only 5 users; paid plans at €15/user/month. For 3-5 person teams, Opsgenie or PagerDuty may offer more flexible pricing.
  • Limited China Market Presence: No DingTalk or WeCom notification channels; incomplete Chinese documentation and UI localization. Chinese users should evaluate local alternatives.
  • Lower Brand Awareness vs. PagerDuty: Brand recognition in North America and Asia-Pacific markets trails PagerDuty and Opsgenie.

Use Cases

  • Mid-to-Large DevOps Teams (★★★★★): Teams needing structured alert management, on-call scheduling, and automatic escalation.
  • 7×24 NOC Teams (★★★★☆): Network operations centers requiring automated scheduling and multi-level escalation.
  • EU GDPR Compliance (★★★★☆): Data stored in Germany, meeting GDPR data residency requirements.
  • Multi-Cloud/Hybrid Environments (★★★★☆): Unified alert management across diverse cloud platforms and monitoring tools.

Pricing

Plan Price Key Features
Free $0 5 users, basic alert management, email notifications
Team €15/user/mo Unlimited alerts, phone+SMS+Slack, on-call scheduling
Enterprise Custom SSO, audit logs, 99.99% SLA, dedicated support

FAQ

  • How is ilert different from PagerDuty? ilert offers GDPR compliance advantages in the EU market with data stored in Germany. Pricing is more flexible with 100+ integrations. PagerDuty has a more mature ecosystem in North America.; see alert fatigue and on-call practice.
  • Which monitoring systems does ilert support? 100+ integrations including Prometheus, Grafana, Zabbix, Nagios, Datadog, AWS CloudWatch, Azure Monitor, Sentry, and Checkmk.; see cloud monitoring services comparison.
  • Is ilert a monitoring platform or pure alerting? ilert is a pure alert management and on-call scheduling platform without native monitoring. It requires integration with monitoring tools like Prometheus or Grafana. See Prometheus + Grafana Guide.
  • Does ilert support Chinese? Partial UI localization is available but incomplete. No DingTalk or WeCom notification channels.; see cloud monitoring services comparison.