Key takeaways
- OneUptime is a real open-source platform, Apache 2.0, fully self-hostable for free, covering uptime monitoring, logs, traces, metrics, status pages, on-call, and incident management in one codebase. Its managed cloud starts free and adds usage-based fees on top: $1/month per active monitor, $0.10/GB for telemetry, and on-call scheduling itself only becomes available on the $22/month Growth plan.
- FluidifyAI Regen is the stronger pick for the on-call, incident lifecycle, and AI post-mortem work specifically. It's open source under AGPLv3, self-hosted or SaaS, with no per-seat pricing and on-call, escalation, and AI-generated post-mortems included free on every tier, not gated behind a paid plan the way OneUptime gates on-call behind Growth and SSO behind Scale.
- Better Stack and Hyperping bundle monitoring with on-call the way OneUptime does, but neither one self-hosts. incident.io and PagerDuty cover the incident and on-call side well but charge per seat and don't touch monitoring at all. None of the four match Regen on combined price, deployment flexibility, and included AI.
Why teams look for OneUptime alternatives
OneUptime's pitch is genuinely different from most of this list. The whole platform, monitoring, logs, traces, on-call, incidents, and status pages, is licensed Apache 2.0, with no paid tier holding back the core code the way open-core competitors structure things. You can run all of it yourself for the cost of your own infrastructure. That's rare, and it's why OneUptime shows up on self-hosted shortlists next to tools like Uptime Kuma and GoAlert that only cover one slice of the stack.
The friction shows up once a team tries to use the managed cloud version, or once the self-hosted install needs a feature the free build doesn't have. On-call scheduling and escalation, the actual on-call product, only turns on at $22/month Growth. SSO, which several compliance-minded teams need on day one, sits behind the $99/month Scale plan. Add active monitors at $1 each, telemetry at $0.10/GB, and SMS and call alerts billed per unit, and a team that just wants dependable on-call and incident coordination ends up paying for and configuring an observability stack they may not need, or already have somewhere else.
The other recurring reason: OneUptime is one platform trying to do the work of six. Monitoring, logs, traces, metrics, infrastructure agents for Kubernetes and Proxmox, RUM, workflows, and incident response all live in the same product. Teams that already run Prometheus, Grafana, or Datadog for monitoring don't need a second monitoring stack bolted to their on-call tool. They need the on-call and incident half done well, on its own.
Top picks at a glance
- Best overall: FluidifyAI Regen. Full incident lifecycle, on-call, AI post-mortems, no per-seat pricing, self-hosted or SaaS.
- Best for teams that want OneUptime's on-call without a paid gate: FluidifyAI Regen.
- Best for teams that already run their own monitoring stack: FluidifyAI Regen.
- Best for compliance-driven self-hosting without an SSO tax: FluidifyAI Regen.
- Best for AI-generated post-mortems included at every tier: FluidifyAI Regen.
- Best for enterprise-scale on-call without a per-seat contract: FluidifyAI Regen.
Feature comparison
| Tool | Starting price | Self-hosted option | AI-generated post-mortems | Per-seat pricing |
|---|---|---|---|---|
| FluidifyAI Regen | Free (AGPLv3), $100/mo managed | Yes | Yes, included on every tier | No |
| OneUptime | Free (self-hosted, Apache 2.0), $22/mo managed | Yes | No, AI Reliability Agent does RCA and auto-fix PRs instead, metered per token | No, usage-based |
| Better Stack | Free tier limited, $29 to $34/responder/mo for on-call | No | No, AI SRE add-on is metered per token, not a generated post-mortem | Yes, per responder |
| Hyperping | Free to $249/mo flat | No | No | No, flat by plan tier |
| incident.io | Free tier, $15 to $19/user/mo, on-call and AI billed as add-ons | No | Yes, on Pro plan and above only | Yes |
| PagerDuty | Free up to 5 users, about $21/user/mo | No | No | Yes |
1. FluidifyAI Regen
Immutable incident timeline with Slack-synced updates, generated as the incident progresses.
Perfect for: teams that already have monitoring, through Prometheus, Grafana, CloudWatch, or a webhook source, and want the on-call, incident coordination, and AI post-mortem layer OneUptime gates behind a paid plan, without adopting a second monitoring stack or paying per seat.
Notable features
- Alert ingestion from Prometheus Alertmanager, Grafana, AWS CloudWatch, or a generic webhook, with pattern matching that learns from historical incidents
- On-call scheduling with layer-based rotations, overrides, holidays, exceptions, and leave, included free on every tier. Global timezone and multi-language support
- Escalation policies with multi-step timeouts
- Immutable incident timelines with bidirectional Slack and Microsoft Teams sync
- AI-generated incident summaries, post-mortems, and handoff digests, using your own model key. BYOK with OpenAI, Anthropic, or Ollama
- SSO/SAML 2.0 with Okta, Azure AD, Google Workspace, or any compliant IdP, included free, not gated to a paid tier
- 1-click migration from Grafana OnCall, Opsgenie, or PagerDuty
Why Regen over OneUptime
OneUptime's monitoring-to-status-page bundle is real and genuinely open source, but the on-call product specifically only activates on its $22/month Growth plan, and SSO waits until the $99/month Scale plan. Regen includes on-call scheduling, escalation policies, and SSO/SAML free on the self-hosted community edition, with no paid plan required to turn them on. OneUptime's postmortem output is a timeline built from incident events; Regen generates the narrative post-mortem itself, using a model key you already hold, included on every tier rather than metered per token the way OneUptime's separate AI Reliability Agent is. Full details on the Regen product page.
Where it falls short
Regen isn't a monitoring or observability platform the way OneUptime is. It ingests alerts from Prometheus, Grafana, CloudWatch, and webhooks rather than running its own uptime checks, log storage, or traces, so teams that specifically want monitoring and on-call in one product should weigh that gap first.
Pricing
Free under AGPLv3 for the self-hosted tier: unlimited users, incidents, and schedules, includes SSO/SAML and BYOK AI. Managed Cloud starts at $100/month (Pro) and $200/month (Business, which adds Reflex and Gills on top of Regen and Neuri). Enterprise is a custom annual contract. No per-user pricing on any tier.
Choose Regen if: you already have a monitoring stack and want on-call, incident coordination, and AI post-mortems included free, not gated behind a $22/month plan just to schedule a rotation.
2. Better Stack
Also considered: teams comparing OneUptime against another all-in-one bundle that skips the self-hosted option entirely.
Notable features
- Uptime monitoring, logs, traces, and metrics in one telemetry platform
- On-call scheduling and escalation tied to a per-responder license
- Branded status pages with subscriber notifications
- AI SRE feature for incident investigation, billed per token
Where Better Stack fits, and where Regen still wins
Better Stack bundles the same categories OneUptime does, monitoring, logs, status pages, and on-call, but it's SaaS only with no self-hosted build at any price. Its on-call license runs $29 to $34 per responder per month on top of whatever telemetry bundle you're already paying for, still headcount-linked the way OneUptime's usage pricing isn't. Regen matches its on-call and incident coordination depth without a per-responder bill or a cloud-only deployment.
Where it falls short
No self-hosted option at any price. On-call is a separate per-responder license stacked on top of telemetry and status page add-ons. AI SRE is metered per token rather than an included, generated post-mortem.
Pricing
Free tier for personal projects: 10 monitors, 1 status page, 3GB logs. Responder license (uptime plus telemetry access) is $34/month, or $29/month billed yearly. Additional monitors, status pages, and channel-based Slack workflows are priced separately on top.
Choose Regen instead if: you want OneUptime-style bundling without a per-responder license that grows every time you add someone to the rotation.
3. Hyperping
Also considered: smaller teams comparing OneUptime against a lighter, flat-priced monitoring and status page bundle.
Notable features
- HTTP, TCP, DNS, SSL, ICMP, cron, and browser-based monitoring
- On-call escalation chains via Slack, SMS, phone, email, and webhook
- Status pages on a custom domain, included even on lower-cost plans
Where Hyperping fits, and where Regen still wins
Hyperping is priced flat by plan tier rather than by seat, which puts it closer to OneUptime's usage model than to per-seat competitors. But it stops at monitoring, status pages, and fixed escalation chains. There's no rotation scheduling, no incident timeline, and no self-hosted build. Regen covers the on-call and incident depth Hyperping doesn't reach, also without per-seat pricing.
Where it falls short
No self-hosted option. No incident lifecycle tracking or AI-assisted post-mortem generation, alerts stop at getting someone paged.
Pricing
Free plan for testing. Essentials at $24/month, Pro at $74/month (adds phone alerts), Business at $249/month billed yearly, or $299/month monthly (adds SSO, audit logs, and compliance features).
Choose Regen instead if: you want a lighter bundle than OneUptime that still includes real on-call scheduling, escalation policies, and AI post-mortems.
4. incident.io
Also considered: teams comparing OneUptime's incident and on-call half against a narrower, Slack-native specialist that doesn't touch monitoring at all.
Notable features
- Slack and Microsoft Teams native incident declaration and response coordination
- AI-drafted post-mortems built from captured timeline data, on Pro plan and above
- Automated status page updates tied to incident state
Where incident.io fits, and where Regen still wins
incident.io skips monitoring entirely and focuses on incident response, which narrows it compared to OneUptime's full bundle. Its AI post-mortem drafting is real and genuinely useful, but it's gated to the Pro plan and priced per seat, and on-call is billed as a separate add-on on top of the base plan. Regen includes on-call and AI-generated post-mortems on every tier, including the free self-hosted one, with no per-seat pricing at any point.
Where it falls short
On-call scheduling is a separate add-on, not included in the base price. AI post-mortem generation requires the Pro tier specifically. No self-hosted option.
Pricing
Free plan for a single team's on-call and one status page. Team plan from $15 to $19/user/month, on-call adds $10 to $12/user/month more. Pro plan at $25/user/month adds AI features and on-call at $20/user/month more. Enterprise is custom.
Choose Regen instead if: you want AI-generated post-mortems and on-call included on the same plan, not stacked as separate per-seat add-ons.
5. PagerDuty
Also considered: large organizations comparing OneUptime's on-call and incident half against the market's default enterprise on-call platform.
Notable features
- Mature on-call scheduling and escalation policies
- Broad third-party integration ecosystem
- AIOps, Advance AI, and status pages sold as separate add-on products
Where PagerDuty fits, and where Regen still wins
PagerDuty covers on-call and escalation at enterprise scale, the same ground OneUptime's on-call module targets at a fraction of the price. But PagerDuty charges per seat and then sells status pages, AIOps, and its Advance AI product as separate line items on top of that. Regen matches its escalation depth without per-seat pricing or a stack of paid add-ons for features OneUptime and Regen both include by default.
Where it falls short
Per-seat pricing that compounds with every hire. Status pages, AIOps, and Advance AI are all billed separately from the base plan. No self-hosted option.
Pricing
Free for up to 5 users. Professional at about $21/user/month annual ($25 monthly). Business at about $41/user/month annual ($49 monthly). Enterprise custom. Status pages add about $89/month, AIOps starts around $699/month, Advance AI around $415/month.
Choose Regen instead if: you want PagerDuty-grade escalation without the per-seat bill or a growing list of paid add-ons for status pages and AI.
Head-to-head decisions
Regen versus OneUptime: OneUptime's self-hosted, Apache 2.0 bundle is the closest thing to Regen's own open-source positioning, but its on-call product requires the $22/month Growth plan and SSO requires the $99/month Scale plan. Regen includes both free on the self-hosted build, plus AI-generated post-mortems OneUptime's separate, metered AI agent doesn't produce.
Regen versus Better Stack: both bundle broadly, but Better Stack has no self-hosted option at any price and charges per responder on top of a telemetry bill. Regen covers the same on-call and incident ground without either constraint.
Regen versus incident.io: incident.io's AI post-mortem drafting is a genuine feature, but it's Pro-tier only and priced per seat, with on-call billed separately again. Regen includes both, on-call and AI post-mortems, on the free self-hosted tier.
Decision framework
By team size
Under 20 people: Regen, free self-hosted with no seat limits and on-call included from the start, not gated behind a paid plan. 20 to 100 people: Regen, no per-seat pricing means the math gets more favorable as headcount grows, not less. 100+ people: Regen, the same cost as a 5-person rotation, with escalation policies and immutable timelines standardizing process at scale.
By workflow
Already running Prometheus, Grafana, or CloudWatch for monitoring: Regen, ingest those alerts directly instead of running a second monitoring stack. Slack-native coordination: Regen, bidirectional sync with Slack and Microsoft Teams. Compliance or data residency requirements: Regen, self-hosted, VPC, or air-gapped, with SSO included rather than requiring a Scale-tier plan.
By budget (20-person team, annual)
Regen: $0 self-hosted, or $1,200 to $2,400/year on Pro or Business managed. OneUptime: $0 self-hosted, or roughly $5,280/year managed once 20 active monitors, Growth-tier on-call, and typical telemetry usage are added up. Hyperping: $288 to $2,988/year depending on tier. incident.io: about $3,600 to $9,600/year with on-call added. PagerDuty: about $5,040 to $9,840/year. Better Stack: about $6,960/year for 20 responder licenses alone, before telemetry and add-ons.
Full list of OneUptime alternatives considered
| Tool | Pricing model | Self-hosted |
|---|---|---|
| FluidifyAI Regen | Free, no per-seat managed tiers | Yes |
| Better Stack | Per-responder plus telemetry add-ons | No |
| Hyperping | Flat, per plan tier | No |
| incident.io | Per-user, on-call and AI billed separately | No |
| PagerDuty | Per-user, add-ons billed separately | No |
| Squadcast | Per-user | No |
| Rootly | Per-user | No |
| Opsgenie | Per-user | No |
| xMatters | Per-user | No |
| Grafana OnCall | Free, archived March 2026 | Yes |
| GoAlert | Free | Yes |
| Uptime Kuma | Free, monitoring only, no incident or on-call layer | Yes |
Common mistakes when leaving OneUptime
Assuming every bundled alternative is also open source. OneUptime's Apache 2.0 license is unusual among the tools that compete with it. BetterStack and Hyperping bundle similar categories but are SaaS only, so a team switching for self-hosting reasons needs to confirm that specifically, not assume it carries over.
Comparing OneUptime's free tier to a competitor's paid one. OneUptime's free self-hosted build doesn't include on-call scheduling, that's a Growth-tier feature at $22/month. Price out the tier that actually has the features you need on both sides before comparing numbers.
Replacing the whole bundle when only the on-call half is the problem. Teams that are happy with OneUptime's monitoring but frustrated by its on-call pricing or depth don't need to migrate off the entire platform. Keeping existing monitoring and pairing it with a dedicated on-call and incident tool is often the smaller change.
FAQ
What's the best OneUptime alternative? FluidifyAI Regen, for the on-call, incident lifecycle, and AI post-mortem work specifically. It's open source, self-hosted or SaaS, with no per-seat pricing and on-call included free on every tier, not gated behind a paid plan.
Why do teams look for OneUptime alternatives? Mostly because OneUptime's core on-call and SSO features sit behind paid tiers ($22/month Growth for on-call, $99/month Scale for SSO), and because running one platform for monitoring, logs, traces, on-call, and incidents at once is more than some teams need, especially ones that already have a monitoring stack in place.
Does Regen replace OneUptime's monitoring too? No, and it isn't trying to. Regen ingests alerts from Prometheus, Grafana, CloudWatch, and webhooks rather than running its own uptime checks or log storage. For the on-call, incident coordination, and AI post-mortem work those alerts feed into, Regen is the stronger choice: included on-call, included AI, no per-seat pricing, and a real self-hosted option.
Try Regen against your own incidents
The self-hosted community edition is on GitHub, running in a few minutes via Docker Compose. Talk to us if you'd rather walk through pairing Regen with the monitoring stack you already run.