Software · head to head
Spline vs ProtoPie
The short version
- Each has a real cost: Spline aI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks; ProtoPie the free plan allows 2 prototypes, 8 scenes per prototype and 50MB of cloud storage
- They diverge on capability: Spline covers 3D modeling, ProtoPie covers Interactive prototyping.
Where they differ
Only the attributes on which Spline and ProtoPie actually diverge.
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 Spline
- 3D modeling
- Real-time collaboration
- Animations
- Interactions
- React
- Next.js
- Webflow
- Framer
Only in ProtoPie
- Interactive prototyping
- Data binding
- Advanced interactions
- Animation
- Collaboration
- Cloud sharing
- Device testing
- Figma
Both cover
- Code export
What people use each for
The jobs each tool is most often brought in to do.
Spline
- Web 3D experiencesnot ProtoPie
- Interactive prototypesnot ProtoPie
- Product visualizationnot ProtoPie
ProtoPie
- Building high fidelity interactive prototypes without codenot Spline
- Prototyping multi device and hardware interactionsnot Spline
- Sharing prototypes with stakeholders for testingnot Spline
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
ProtoPie
- The free plan allows 2 prototypes, 8 scenes per prototype and 50MB of cloud storage
- Free prototypes carry a watermark and shareable links require the Basic plan
- Saving prototypes locally requires the Pro plan
- Team libraries and handoff recordings require the Pro plan
- Basic caps storage at 500MB and prototypes at 20
- Single sign on, private servers, custom fonts and custom hardware integrations are Enterprise only
- Enterprise requires a minimum of 3 seats and is priced by quote
- Connect Core is a paid add on at $20 per user per month
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
ProtoPie
Free- FreeFree
- Limited prototypes
- Cloud storage
- Basic sharing
- Professional$25/month
- Unlimited prototypes
- Advanced interactions
- Collaboration
- Enterprise$75/month
- Everything in Professional
- Team features
- Advanced security
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.
Choose ProtoPie if
- You need interactive prototyping.
- You want to start without paying.
- You work on Windows, Macos, Web, Ios, Android.
- You also want data binding.
Questions people ask
- Is Spline or ProtoPie better?
- Neither clearly leads. Spline starts at Free and ProtoPie at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Spline or ProtoPie?
- Spline starts at Free and ProtoPie at Free.
- Does Spline or ProtoPie run on more platforms?
- Spline runs on Web, iOS, Android, visionOS. ProtoPie runs on Windows, Macos, Web, Ios, Android.
- 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 ProtoPie is typically brought in for.
- What can Spline do that ProtoPie cannot?
- Spline covers 3D modeling, Real-time collaboration, Animations, Interactions. ProtoPie covers Interactive prototyping, Data binding, Advanced interactions, Animation. Both handle Code export.
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