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Software · head to head

Amplitude vs LangSmith

Amplitude logo

Amplitude

Software

The digital analytics platform to understand your users

From
Free
Rated
-
Full reviewWebsite
L

LangSmith

Software

Know what your agents are really doing

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Amplitude has a free tier, so it costs nothing to try first.
  • 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; LangSmith usage beyond the included trace allotment is billed in LangChain Compute Units at $1.50 per LCU and Storage Units at $1.00 per LSU, an unfamiliar metering unit compared to flat per-seat pricing, as of August 2026.

Where they differ

Only the attributes on which Amplitude and LangSmith actually diverge.

Attributes where Amplitude and LangSmith differ
AttributeAmplitudeLangSmith
Starting priceFreeOn request
Pricing modelUnknownsubscription
Free tierYesNo
PlatformsWeb, Ios, Android, ApiWeb
Founded2012Unknown

Identical on both: 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 LangSmith

Nothing recorded that Amplitude does not also cover.

What people use each for

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

Amplitude

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

LangSmith

No use cases recorded yet. See the LangSmith review.

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

LangSmith

  • Usage beyond the included trace allotment is billed in LangChain Compute Units at $1.50 per LCU and Storage Units at $1.00 per LSU, an unfamiliar metering unit compared to flat per-seat pricing, as of August 2026.

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

LangSmith

On request

No published plan breakdown. See the LangSmith review.

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 LangSmith if

Nothing in the data separates LangSmith from Amplitude on the points above - pick on price and on how each one feels to use.

LangSmith review

Questions people ask

Is Amplitude or LangSmith better?
Neither clearly leads. Amplitude starts at Free and LangSmith at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Amplitude or LangSmith?
Amplitude has a free tier; the other does not. Paid plans start at Free for Amplitude and On request for LangSmith.
Does Amplitude or LangSmith run on more platforms?
Amplitude runs on Web, Ios, Android, Api. LangSmith runs on Web.
Can I use Amplitude for free?
Yes. Amplitude has a free tier, so you can try it without paying. LangSmith starts at On request.
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 LangSmith is typically brought in for.
What can Amplitude do that LangSmith cannot?
Amplitude covers Event tracking, User segmentation, Funnel analysis, Retention analysis.

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
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
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
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