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Software · head to head

RudderStack vs Subframe

RudderStack logo

RudderStack

Software

The open-source customer data platform

From
Free
Rated
-
Full reviewWebsite
S

Subframe

Software

The AI-native design tool built for code

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: RudderStack on the free plan data processing stops after a second consecutive overage rather than being billed, so exceeding 250,000 events twice breaks the pipeline; Subframe the free plan is capped at 1 project, 10 pages, and 2 prototypes with limited AI usage and only 24 hour version history, versus unlimited AI on the $29 per editor per month Pro plan, as of August 2026.

Where they differ

Only the attributes on which RudderStack and Subframe actually diverge.

Attributes where RudderStack and Subframe differ
AttributeRudderStackSubframe
Pricing modelusage-basedfreemium
PlatformsWeb, Self-hostedWeb
Founded2018Unknown

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 RudderStack

  • Data collection
  • Event tracking
  • Audience segmentation
  • Warehouse ingestion
  • Real-time sync
  • Data transformation
  • Privacy controls
  • 200+ destinations

Only in Subframe

Nothing recorded that RudderStack does not also cover.

What people use each for

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

RudderStack

  • Collecting event data from apps and websites and routing it to warehouses and toolsnot Subframe
  • Building a warehouse first customer data pipelinenot Subframe

Subframe

No use cases recorded yet. See the Subframe review.

Where each one falls short

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

RudderStack

  • On the free plan data processing stops after a second consecutive overage rather than being billed, so exceeding 250,000 events twice breaks the pipeline
  • The free plan allows 250,000 events a month
  • Growth starts at $265 a month for 1 million events, with volume sold in tiers up to 25 million
  • Overage is charged as the gap to the next tier's price rather than per event, so a small excess costs a full tier step

Subframe

  • The free plan is capped at 1 project, 10 pages, and 2 prototypes with limited AI usage and only 24 hour version history, versus unlimited AI on the $29 per editor per month Pro plan, as of August 2026.

Pricing, plan by plan

RudderStack

Free
  • Open SourceFree
    • Self-hosted
    • Community support
  • Cloud$100/month
    • Cloud hosted
    • Email support
  • Enterprise$500/month
    • Dedicated support
    • Advanced features

Subframe

Free

No published plan breakdown. See the Subframe review.

Which should you pick?

Choose RudderStack if

  • You need data collection.
  • You want to start without paying.
  • You work on Web, Self-hosted.
  • You also want event tracking.
RudderStack review

Choose Subframe if

  • You want to start without paying.
Subframe review

Questions people ask

Is RudderStack or Subframe better?
Neither clearly leads. RudderStack starts at Free and Subframe at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, RudderStack or Subframe?
RudderStack starts at Free and Subframe at Free.
Does RudderStack or Subframe run on more platforms?
RudderStack runs on Web, Self-hosted. Subframe runs on Web.
Can I use RudderStack for free?
Both have a free tier, so you can try either at no cost before committing.
What is RudderStack best used for?
RudderStack is most often used for collecting event data from apps and websites and routing it to warehouses and tools, building a warehouse first customer data pipeline. Of those, collecting event data from apps and websites and routing it to warehouses and tools and building a warehouse first customer data pipeline are not what Subframe is typically brought in for.
What can RudderStack do that Subframe cannot?
RudderStack covers Data collection, Event tracking, Audience segmentation, Warehouse ingestion.
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