Ultraviolet Observability vs QuietDiff

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Ultraviolet Observability compared with QuietDiff
Detail	Ultraviolet Observability	QuietDiff
What it does	Self-hosted observability platform for Kubernetes that keeps all telemetry data within your firewall	Only alerts that matter
Stage	Startup	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Paid	Freemium
Pricing	Evaluation: Free for 30 days with full-function core and unlimited nodes during trial. Connected: $25 per node per month with 10-node minimum, billed on node-minutes. Air-gapped: Annual hand-carried license with no call-home. No per-GB, per-span or per-user fees.	Free: $0/month with 10 monitors and daily checks. Starter: $9/month with 100 monitors and hourly checks. Pro: $29/month with 500 monitors and 10-minute checks. Agency: $99/month with 3,000 monitors and 5-minute checks.
Key features	Distributed traces and APM with automatic instrumentation across HTTP, gRPC, DNS and databases Logs correlated to traces with severity faceting and live tail Metrics pipeline supporting Prometheus remote-write and Fluent Bit Kubernetes and infrastructure monitoring with node and workload health Dashboards, SLOs with error budgets and Datadog dashboard import Local alerting rules evaluated inside the core routed to Slack, PagerDuty, Teams or email Real user monitoring with Core Web Vitals, session replay and browser to backend trace stitching Multi-site support with remote clusters dialing home over outbound mTLS OpenTelemetry-native support for OTLP over gRPC and HTTP No code instrumentation required for application tracing	AI Significance Filtering Structured Field Diffs Confirmation Re-checks REST API and OpenAPI MCP Server for AI Agents Monitor Health Tracking Multi-Channel Alerts JavaScript Rendering with Headless Chromium HMAC-signed Webhooks AI Summaries
What makes it different	Zero telemetry egress and all data stays on customer infrastructure Predictable pricing based on node-minutes with no per-GB or per-span charges Automatic instrumentation with no code changes required	Re-checks every change before alerting to confirm they are real Filters out noise like timestamps, rotating ads, and footer years Shows side-by-side old and new values with AI summaries Native integration with AI agents via MCP server More monitors and faster checks per dollar than competitors
Community votes	0	0
DR (Domain Rating by Ahrefs)	23 +5 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	20	0
Referring domains (Majestic)	5	0

5 details filled in for both companies.

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