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Amplitude vs Axiom

Amplitude logo

Amplitude

Software

The digital analytics platform to understand your users

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: Amplitude metered on event volume, so instrumenting more of a product raises the bill even if the audience does not grow; Axiom no self-hosted or air-gapped deployment option for compliance-sensitive workloads
  • They diverge on capability: Amplitude covers Event tracking, Axiom covers Serverless architecture.

Where they differ

Only the attributes on which Amplitude and Axiom actually diverge.

Attributes where Amplitude and Axiom differ
AttributeAmplitudeAxiom
PlatformsWeb, Ios, Android, ApiWeb (Chrome, Edge, Firefox, Safari), API
Founded20122017

Identical on both: starting price (Free), pricing model (Unknown), 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 Amplitude

  • Event tracking
  • User segmentation
  • Funnel analysis
  • Retention analysis
  • Cohort analysis
  • A/B testing
  • Revenue analytics
  • Predictive analytics

Only in Axiom

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

What people use each for

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

Amplitude

  • User behavior analysisnot Axiom
  • Feature adoption trackingnot Axiom
  • Conversion rate optimizationnot Axiom
  • Customer journey mappingnot Axiom
  • Retention improvementnot Axiom

Axiom

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

Where each one falls short

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

Amplitude

  • Metered on event volume, so instrumenting more of a product raises the bill even if the audience does not grow
  • The free plan covers 2M events a month
  • The Plus plan scales to 70M events, above which pricing is custom
  • Growth and Enterprise pricing is not published

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

Amplitude

Free
  • StarterFree
    • 2 million events per month
  • Plus$49/month
    • $0.049 per MTU
    • Up to 300k MTUs
    • Advanced analytics
  • GrowthFree
    • Causal insights
    • Feature experimentation
    • Real-time streaming
  • EnterpriseFree
    • Cross-product analysis
    • Advanced permissions
    • Dedicated account manager

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 Amplitude if

  • You need event tracking.
  • You want to start without paying.
  • You work on Web, Ios, Android, Api.
  • You also want user segmentation.
Amplitude 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 Amplitude or Axiom better?
Neither clearly leads. Amplitude 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, Amplitude or Axiom?
Amplitude starts at Free and Axiom at Free.
Does Amplitude or Axiom run on more platforms?
Amplitude runs on Web, Ios, Android, Api. Axiom runs on Web (Chrome, Edge, Firefox, Safari), API.
Can I use Amplitude for free?
Both have a free tier, so you can try either at no cost before committing.
What is Amplitude best used for?
Amplitude is most often used for user behavior analysis, feature adoption tracking, conversion rate optimization, customer journey mapping. Of those, user behavior analysis and feature adoption tracking are not what Axiom is typically brought in for.
What can Amplitude do that Axiom cannot?
Amplitude covers Event tracking, User segmentation, Funnel analysis, Retention analysis. Axiom covers Serverless architecture, Log aggregation, Real-time processing, AplLog query language.

Answered from the vendors’ own pages

Amplitude: Does Amplitude have a free plan?

Yes, Amplitude offers a free Starter plan with 2 million events per month and access to the entire platform including analytics, session replay, and experimentation features.

Source
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
Amplitude: What is Amplitude's pricing based on?

Amplitude's pricing is based on the number of monthly tracked users (MTUs), data volume, and advanced features selected. The Plus plan starts at $49 per month with a rate of $0.049 per MTU.

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
Amplitude: What analytics features does every Amplitude plan include?

Every plan includes access to the full platform: analytics, session replay, feature experimentation, web experimentation, guides and surveys, activation, and AI tools like AI Feedback and AI Assistant.

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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