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Software · head to head

Rollbar vs Axiom

Rollbar logo

Rollbar

Software

Real-Time Error Tracking and Debugging

From
Free
Rated
-
Full reviewWebsite
Axiom logo

Axiom

Software

Serverless Log Analytics and Observability

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Rollbar the free plan allows 5,000 occurrences a month with 30 day retention; Axiom no self-hosted or air-gapped deployment option for compliance-sensitive workloads
  • They diverge on capability: Rollbar covers Error tracking, Axiom covers Serverless architecture.

Where they differ

Only the attributes on which Rollbar and Axiom actually diverge.

Attributes where Rollbar and Axiom differ
AttributeRollbarAxiom
Pricing modelusage-basedUnknown
PlatformsWeb, ApiWeb (Chrome, Edge, Firefox, Safari), API
Founded20122017

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Rollbar

  • Error tracking
  • Real-time alerts
  • Error grouping
  • Source maps

Only in Axiom

  • Serverless architecture
  • Log aggregation
  • Real-time processing
  • AplLog query language
  • Cost-effective indexing

Both cover

  • API
  • Webhooks
  • REST
  • Web support
  • Api support

What people use each for

The jobs each tool is most often brought in to do.

Rollbar

  • Tracking application errors and exceptions across deploymentsnot Axiom
  • Grouping and alerting on production error occurrencesnot Axiom

Axiom

  • Log monitoringnot Rollbar
  • Application performancenot Rollbar
  • Security analyticsnot Rollbar
  • Troubleshootingnot Rollbar

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Rollbar

  • The free plan allows 5,000 occurrences a month with 30 day retention
  • Retention is a paid ladder rather than a setting, at up to 90 days on Essentials and up to 180 on Advanced
  • Advanced alerting, the RQL analytics query language and SCIM provisioning are excluded from the free plan
  • Enterprise requires a $4M annual plan minimum
  • No price is published for Essentials or Advanced, so only the free tier has a visible cost

Axiom

  • No self-hosted or air-gapped deployment option for compliance-sensitive workloads
  • Vendor lock-in due to APL (Axiom Processing Language) not transferring to other platforms
  • Proprietary storage format limits data portability and external analytics access
  • Complex pricing model with multiple cost dimensions (ingestion, compute, storage) makes budgeting difficult at scale
  • Limited ecosystem integration; does not integrate deeply with existing observability stacks like Grafana for metrics and Jaeger for traces

Pricing, plan by plan

Rollbar

Free
  • FreeFree
    • Error tracking
    • Real-time alerts
    • Error grouping

Axiom

Free
  • PersonalFree
    • 500GB/month data loading
    • 10 GB-hours query compute
    • 25GB storage
  • Axiom Cloud$25/month
    • 1TB/month data loading included
    • 100 GB-hours compute included
    • 100GB storage included

Which should you pick?

Choose Rollbar if

  • You need error tracking.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want real-time alerts.
Rollbar review

Choose Axiom if

  • You need serverless architecture.
  • You want to start without paying.
  • You work on Web (Chrome, Edge, Firefox, Safari), API.
  • You also want log aggregation.
Axiom review

Questions people ask

Is Rollbar or Axiom better?
Neither clearly leads. Rollbar starts at Free and Axiom at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Rollbar or Axiom?
Rollbar starts at Free and Axiom at Free.
Does Rollbar or Axiom run on more platforms?
Rollbar runs on Web, Api. Axiom runs on Web (Chrome, Edge, Firefox, Safari), API.
Can I use Rollbar for free?
Both have a free tier, so you can try either at no cost before committing.
What is Rollbar best used for?
Rollbar is most often used for tracking application errors and exceptions across deployments, grouping and alerting on production error occurrences. Of those, tracking application errors and exceptions across deployments and grouping and alerting on production error occurrences are not what Axiom is typically brought in for.
What can Rollbar do that Axiom cannot?
Rollbar covers Error tracking, Real-time alerts, Error grouping, Source maps. Axiom covers Serverless architecture, Log aggregation, Real-time processing, AplLog query language. Both handle API, Webhooks, REST, Web support.

Answered from the vendors’ own pages

Axiom: Does Axiom offer a free tier with no time limit?

Yes, Axiom's Personal plan is permanently free and includes 500GB of data ingest per month, 10 GB-hours of query compute, and 25GB storage with 30-day retention. No credit card is required.

Source
Axiom: Can I self-host Axiom or use my own cloud infrastructure?

No, Axiom is cloud-only. There is no self-hosted option, air-gapped deployment, or Bring Your Own Cloud available. The platform is a fully managed service.

Source
Axiom: What is Axiom's query language and does it work with SQL?

Axiom uses APL (Axiom Processing Language), based on Kusto Query Language. It is not standard SQL, and APL skills and queries do not transfer to other platforms, creating vendor lock-in.

Source
Axiom: What integrations does Axiom support for alerting?

Axiom supports pre-built integrations with Slack and PagerDuty, plus custom webhooks. Alerts can be configured via threshold-based, anomaly detection, or match-based monitors.

Source
Axiom: How does Axiom's pricing scale with data volume?

Axiom uses consumption-based pricing with automatic volume discounts. Costs depend on data loading volume, query compute usage (measured in GB-hours), and storage. The Team plan starts at $25/month with included allowances, then overage charges apply per unit with volume-based discounts.

Source
Axiom: What platforms can access Axiom's web interface?

Axiom's web app supports Chrome, Edge, Firefox, and Safari. Mobile access is supported on iOS and Android, but some features like moving dashboard elements are unavailable on mobile.

Source
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