Yes: Business and up
Signed SLA statements
Each period's attainment, signed and checkable by anyone without an account.
CompareOneUptime
Observer vs OneUptime
OneUptime is an open-source, all-in-one observability platform: monitoring, on-call, incidents, logs, and a status page. Observer is the opposite shape, a thin verdict layer over the telemetry you already have.Checked against OneUptime's own public pages.
Observer ahead on
7of 9
- Signed SLA statementsPartly:
- Per-customer statusPartly:
- AI updates from evidenceNo:
- Incident evidence exportNo:
- What drives statusPartly:
- Built-in monitoringYes:
- Signal source & data localityPartly:
- Pricing modelPartly:
- Open source & engineer surfaceYes:
OneUptime's answers from its own public pages, checked .
Verdict
The short answer.
OneUptime is built for
Monitoring, on-call, incidents, logs and a status page in one platform you run.
Observer instead
A thin verdict layer over the telemetry you already collect. The only thing you run is one agent.
Pick
Choose OneUptime if you want to run a full observability platform yourself. Choose Observer if you want a status page that reads your existing telemetry without standing up another system.
At a glance
The record first, then the mechanics.
What your customers can check comes first. How the page runs follows.
The record
Signed SLA statements
- Observer
- Yes: Pro plan
- OneUptime
- Partly: SLA tracking
Per-customer status
- Observer
- Yes: from Pro
- OneUptime
- Partly: public and private
AI updates from evidence
- Observer
- Yes: drafts, you publish
- OneUptime
- No: not listed
Incident evidence export
- Observer
- Yes: signed JSON + PDF
- OneUptime
- No: not listed
The mechanics
What drives status
- Observer
- Yes: metric + threshold
- OneUptime
- Partly: its own monitors
Built-in monitoring
- Observer
- Yes: telemetry + probes
- OneUptime
- Yes: full platform
Signal source & data locality
- Observer
- Yes: inside your network
- OneUptime
- Partly: send it your data
Pricing model
- Observer
- Yes: flat per tier
- OneUptime
- Partly: per user + usage
Open source & engineer surface
- Observer
- Yes: agent, Apache 2.0
- OneUptime
- Yes: Apache 2.0
Yes: does itPartly: partlyNo: does notMethod: each answer is graded against a status page with a record customers can check, using the vendor's own public pages. Checked .
Side by side
Line by line.
The same 9 dimensions on every comparison, each with the question it answers.
Dimension
Observer
OneUptime
The record
Signed SLA statements
Can a customer check the SLA figure without taking your word for it?
Yes: Pro plan
Each period's attainment, with the working shown, hashed and signed. Your customer checks it at /reliability/verify without an account.
SLA tracking
Its homepage mentions SLA tracking and automated reports. Signing or an outside check is not listed.
Per-customer status
Can each customer see their own status?
Yes: from Pro
One probe can publish a different verdict per customer, with its own SLO target, subscribers and access.
public and private
Public and private status pages, unlimited on paid cloud plans.
AI updates from evidence
Who writes the customer update, and from what?
Yes: drafts, you publish
AI drafts the customer update from the incident's measured status changes and earlier updates. It leaves the cause to your team, and a person publishes.
not listed
Its AI agent watches and opens fix pull requests. Drafting incident updates is not listed.
Incident evidence export
Can one incident go in the file, with proof?
Yes: signed JSON + PDF
From Business, an incident exports with detection time, affected services, the measured impact window, the update timeline and notification receipts. It verifies on the same page as SLA statements.
not listed
Its homepage describes audit-ready incident timelines. An export is not listed.
The mechanics
What drives status
What flips a component from up to down?
metric + threshold
Reads the metric your engineers already watch, applies your threshold, and publishes the verdict.
its own monitors
Its monitors drive status, including metric and log monitors that apply thresholds to telemetry sent into OneUptime. Updates can also be posted by hand.
Built-in monitoring
What does it check on its own?
Yes: telemetry + probes
Prometheus, OpenTelemetry, CloudWatch, Loki, Elasticsearch and SQL/NoSQL, plus HTTP, TCP, DNS, TLS, ICMP, gRPC and WebSocket probes.
Yes: full platform
Website, API, server, database, Kubernetes and cloud monitors, plus logs, metrics and traces you ingest into OneUptime.
Signal source & data locality
Where does the signal come from, and where does it go?
inside your network
The agent runs next to your data and sends readings and verdicts outbound. Database and source credentials stay on the host.
send it your data
You run the platform, self-hosted or cloud, and send your telemetry into it.
Pricing model
How does the bill grow?
flat per tier
Free, then $19, $79 or $199 a month, then Enterprise. No per-seat or per-subscriber fees.
per user + usage
Free to self-host. The cloud has a free tier, then paid plans, with active monitors billed per monitor and telemetry per GB ingested.
Open source & engineer surface
What can engineers read, script and extend?
Yes: agent, Apache 2.0
Open-source agent on every plan; public API, CLI, MCP server and AI-assistant skills from Starter.
Yes: Apache 2.0
Self-hostable core, with enterprise features under a separate licence. The broadest scope of the group.
Beyond the page
What Observer adds after the incident.
The reporting customers, procurement and auditors ask for, built on the same measurements as the page.
Yes: Business and up
Reliability Center
Public commitments and attainment, and a private portal per customer.
Yes: Pro and up
Executive summary
Attainment, risk and MTTR across every service, for the board.
Yes: Starter and up
SLOs and error budgets
Budgets read from the same metrics, with burn alerts.
Yes: Starter and up
Customer updates from evidence
AI drafts the update from what was measured; a person publishes.
Yes: Pro and up
Status per customer
One probe, each customer judged against their own SLO.
Fair to say
When OneUptime is the better pick.
One platform
You want monitoring, on-call, incidents, logs and traces in a single system.
Self-host everything
You want to run the whole stack yourself. Observer's control plane is hosted.
Migration
Moving from OneUptime.
Run the agent
One container next to the systems you already monitor. It dials out; nothing in your network accepts a connection from Observer.
Map what you watch
Point the agent at the telemetry you already send to OneUptime, and turn each monitor into a metric with two thresholds.
Publish and route
Group metrics into services and publish the page. Send flips to Slack, PagerDuty, Teams or a webhook; recoveries always deliver.
Switch over
Keep OneUptime live until the page matches what you would have posted. Then point your status domain at Observer (custom domains are on paid plans).
Questions
Asked before switching.
Is Observer a OneUptime alternative?
For the status-page use case, yes. OneUptime is a whole platform you host or send data to; Observer is a focused status page that reads the metrics you already collect.
Do I have to self-host Observer like OneUptime?
No. Observer's control plane is hosted; only the lightweight agent runs in your network. It sends readings and verdicts outbound, and your credentials stay on your hosts.
Does Observer ingest logs and traces like OneUptime?
Observer reads metrics and log-derived metrics to compute status. It is not a full logs and traces store; it sits on top of the observability stack you already run.
Sources
Where the facts come from.
Every statement about OneUptime on this page was checked against these public pages, most recently on .
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