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SEMrush vs Spline

SEMrush logo

SEMrush

All industries

Do SEO, content marketing, competitor research, PPC and social media marketing from just one platfor

From
Free
Rated
-
Full reviewWebsite
Spline logo

Spline

Design Tools

3D design tool for the web

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: SEMrush free tier limited to 10 reports per day across all tools; Spline aI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks
  • They diverge on capability: SEMrush covers Keyword research, Spline covers 3D modeling.

Where they differ

Only the attributes on which SEMrush and Spline actually diverge.

Attributes where SEMrush and Spline differ
AttributeSEMrushSpline
PlatformsWeb, Mobile appWeb, iOS, Android, visionOS
CategoryAll industriesDesign Tools
Founded20082020

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated).

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 SEMrush

  • Keyword research
  • Site audit
  • Competitor analysis
  • Backlink analytics
  • Rank tracking
  • Content marketing
  • PPC research
  • Social media tools

Only in Spline

  • 3D modeling
  • Real-time collaboration
  • Animations
  • Interactions
  • Code export
  • React
  • Next.js
  • Webflow

Both cover

  • SSL encryption

What people use each for

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

SEMrush

  • SEO keyword research and competitor analysisnot Spline
  • Website performance tracking and auditingnot Spline
  • Content marketing optimizationnot Spline
  • PPC advertising researchnot Spline

Spline

  • Web 3D experiencesnot SEMrush
  • Interactive prototypesnot SEMrush
  • Product visualizationnot SEMrush

Where each one falls short

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

SEMrush

  • Free tier limited to 10 reports per day across all tools
  • Keyword tracking capped at 500 per month on entry tiers (SEO and Starter plans)
  • Additional users cost £45/month per user above base subscription
  • Most advanced features require Advanced plan (£455.67/month), making entry cost significant for small teams

Spline

  • AI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks
  • Limited to simpler designs - not suitable for high-poly, detailed production models
  • Performance degrades with complex scenes containing many objects and materials
  • Limited non-Apple platform coverage compared to cross-platform design tools
  • Tutorials are either too fast for beginners or too basic for advanced users

Pricing, plan by plan

SEMrush

Free

No published plan breakdown. See the SEMrush review.

Spline

Free
  • FreeFree
    • Unlimited projects
    • Basic exports
    • Community support
  • Pro$9/month
    • Advanced exports
    • Custom domains
    • Password protection
  • Team$19/month
    • Team collaboration
    • Version control
    • Admin controls

Which should you pick?

Choose SEMrush if

  • You need keyword research.
  • You want to start without paying.
  • You work on Web, Mobile app.
  • You also want site audit.
SEMrush review

Choose Spline if

  • You need 3d modeling.
  • You want to start without paying.
  • You work on Web, iOS, Android, visionOS.
  • You also want real-time collaboration.
Spline review

Questions people ask

Is SEMrush or Spline better?
Neither clearly leads. SEMrush starts at Free and Spline at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, SEMrush or Spline?
SEMrush starts at Free and Spline at Free.
Does SEMrush or Spline run on more platforms?
SEMrush runs on Web, Mobile app. Spline runs on Web, iOS, Android, visionOS.
Can I use SEMrush for free?
Both have a free tier, so you can try either at no cost before committing.
What is SEMrush best used for?
SEMrush is most often used for seo keyword research and competitor analysis, website performance tracking and auditing, content marketing optimization, ppc advertising research. Of those, seo keyword research and competitor analysis and website performance tracking and auditing are not what Spline is typically brought in for.
What can SEMrush do that Spline cannot?
SEMrush covers Keyword research, Site audit, Competitor analysis, Backlink analytics. Spline covers 3D modeling, Real-time collaboration, Animations, Interactions. Both handle SSL encryption.

Answered from the vendors’ own pages

Spline: What is Spline's pricing?

Spline offers a Free plan with watermarked web exports, Starter at $12/month (billed annually) removing watermarks, Professional at $20/month with unlimited projects, and Enterprise with custom pricing. Viewers are unlimited on all plans.

Source
Spline: Can Spline export 3D models to other tools?

Spline's export/import format support is more limited compared to traditional 3D tools like Blender. It focuses on web-first exports and native app code generation.

Source
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Related pages

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