Software · head to head
Spline vs Subframe
The short version
- Each has a real cost: Spline aI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks; 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 Spline and Subframe actually diverge.
Identical on both: starting price (Free), pricing model (freemium), 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 Spline
- 3D modeling
- Real-time collaboration
- Animations
- Interactions
- Code export
- React
- Next.js
- Webflow
Only in Subframe
Nothing recorded that Spline does not also cover.
What people use each for
The jobs each tool is most often brought in to do.
Spline
- Web 3D experiencesnot Subframe
- Interactive prototypesnot Subframe
- Product visualizationnot 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.
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
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
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
Subframe
FreeNo published plan breakdown. See the Subframe review.
Which should you pick?
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.
Questions people ask
- Is Spline or Subframe better?
- Neither clearly leads. Spline 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, Spline or Subframe?
- Spline starts at Free and Subframe at Free.
- Does Spline or Subframe run on more platforms?
- Spline runs on Web, iOS, Android, visionOS. Subframe runs on Web.
- Can I use Spline for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Spline best used for?
- Spline is most often used for web 3d experiences, interactive prototypes, product visualization. Of those, web 3d experiences and interactive prototypes are not what Subframe is typically brought in for.
- What can Spline do that Subframe cannot?
- Spline covers 3D modeling, Real-time collaboration, Animations, Interactions.
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.
SourceSpline: 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