What Tablif read on Ultraviolet Observability's site
Ultraviolet Observability describes itself as: “Ultraviolet Observability — self-hosted observability for Kubernetes, behind your firewall”
- Price model: Monthly · free tier
- Free tier: Free for a trial
- Stage: Live, no waitlist
- Alternative to: Datadog
- How it differs: “Ultraviolet is built to run entirely inside your environment from the start — on every plan, air-gapped included — so nothing about it depends on us being reachable.”
What it is
Calls itself “observability”.
- Calls itself: observability
“Ultraviolet Observability delivers full-stack observability running entirely inside your environment.”
Where it puts itself
Positions itself as an alternative to Datadog. Rules out “vendor egress”. Publishes a comparison page.
- Alternative to: Datadog
- Says it will not: vendor egress
“Ultraviolet is built to run entirely inside your environment from the start — on every plan, air-gapped included — so nothing about it depends on us being reachable.”
“Datadog and Groundcover are good products with the same structural problem”
What it costs
Monthly subscription. Free for a trial period. Trial: “30 days”. Sales on request. No yearly plan. Prices quoted: $25/node/month.
- Monthly: yes
- Yearly: no
- Free plan: free for a trial
- Price: $25/node/month
- Trial: 30 days
- Contact sales: yes
“$25 per node per month.”
“Signed annual .lic file, carried in”
“$25 per node per month. We sample your active node set every 30 seconds and sum it into node-minutes.”
Who it sells to
Sells to businesses.
- Sells to: businesses
“For regulated, defense, and on-prem workloads, that is where the evaluation ends.”
How it runs
A web app for Kubernetes. Can be self-hosted.
- Kind: web
- Runs on: Kubernetes
- Runs where: self-hosted
“It installs as a Helm chart and runs like any other workload in your cluster.”
“Ultraviolet Observability delivers full-stack observability running entirely inside your environment.”
What it works with
Integrates with Fluent Bit, OpenTelemetry and Prometheus. Names Datadog, Grafana and 2 more on its pages.
- Integrates with: Fluent Bit · OpenTelemetry · Prometheus
- Names: Datadog · Grafana · Groundcover · +1
“Datadog and Groundcover are good products with the same structural problem: your telemetry — request payload shapes, internal hostnames, customer identifiers leaking through log lines — has to leave your perimeter to be useful.”
“The platform supports air-gapped deployments, OpenTelemetry, Prometheus, and Fluent Bit, and correlates signals across services and real user sessions.”
What it offers as proof
Live, no waitlist. Trying it asks for an email. Publishes docs and a blog.
- Instant signup: yes
- Trial asks for: an email address
“Request a demo”
“Email Open the live demo No spam. You will get a login link”
Sources
Tablif read these pages, last on 19 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.
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