Kuvasz Uptime vs Spectate

Kuvasz Uptime is free, open-source, self-hosted monitoring software for uptime, SSL certificates, keywords, servers, and infrastructure checks. HTTP monitors support adjustable intervals, headers, keyword matching, expected status codes, and response-time checks. Other monitor types include SSL certificate, push, ICMP ping, TCP port, and DNS monitoring. You can create public or private brandable status pages and schedule maintenance windows manually, by recurring cron schedule, or as one-off events to pause affected checks. Notifications can use email, Slack, Discord, Telegram, Microsoft Teams, Apprise, Pushover, PagerDuty, or custom webhooks, configured per monitor. Metrics export to Prometheus or OTLP-compatible tools, and an official Home Assistant integration is available. Monitors can be managed through the Web UI, REST API, or YAML. Deployment uses Docker, Docker Compose, or an official Helm chart and requires PostgreSQL; PostgreSQL 14 is the minimum tested version listed. The Free plan costs nothing, with the monitor limit not stated.

Spectate monitors websites, APIs, servers, infrastructure, and applications, and provides tools for managing incidents. Website checks track uptime and performance, run globally, capture screenshots, and alert on SSL certificate expiry. A custom-built server agent is described as open source, dependency-free, and designed to add no server load. Incident features include merging incidents, collaboration, AI-assisted root cause analysis, postmortems, interactive alerts, and status page publishing. Status pages support branding, custom domains, user issue reports, subscriptions, and postmortems. Alerts can go through Slack, Discord, or Pushover, or be sent by voice or SMS. Spectate is available on Android, iOS, and web. The free Hobby tier allows five monitors or servers and one status page. Paid tiers list monitor or server limits from 15 to 250; Solo is $12.00 per month, billed $144 yearly. On-call scheduling and incident escalation policies are marked as coming soon.