Spline
Whimsical
| Feature | Spline | Whimsical |
|---|---|---|
| Pricing | Free / from $9/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.5 / 5 |
| Best For | web-designers, product-designers, front-end-developers, creative-agencies | product-managers, startup-teams, ux-designers, strategists |
| Founded | 2020 | 2017 |
| 3d Modeling | ✓ | ✗ |
| Real Time Collaboration | ✓ | ✗ |
| Animations | ✓ | ✗ |
| Interactions | ✓ | ✗ |
| Web Export | ✓ | ✗ |
| Materials | ✓ | ✗ |
| Physics | ✓ | ✗ |
| Flowcharts | ✗ | ✓ |
| Wireframes | ✗ | ✓ |
| Mind Maps | ✗ | ✓ |
| Sticky Notes | ✗ | ✓ |
| Docs | ✗ | ✓ |
| Ai Assistant | ✗ | ✓ |
| Templates | ✗ | ✓ |
| Collaboration | ✗ | ✓ |
✓ Spline Pros
- Browser-based with no installation required
- Easy to learn compared to traditional 3D tools
- Real-time collaboration like Figma for 3D
- Direct export to web (React, iframe, vanilla JS)
✗ Spline Cons
- Limited to simpler 3D scenes (not production rendering)
- Performance issues with complex models
- Fewer modeling tools than dedicated 3D software
✓ Whimsical Pros
- Multiple workspace types (flowcharts, wireframes, mind maps) in one tool
- AI-powered features for generating and organizing content
- Exceptionally clean and fast interface
- Great for rapid wireframing and prototyping
✗ Whimsical Cons
- Free plan limited to certain number of files
- Less detailed wireframing than Figma or Sketch
- Fewer integrations than larger platforms
The Verdict
Spline is built for web designers and product designers, with a focus on 3d-modeling and real-time-collaboration. Whimsical targets product managers and startup teams and leads with flowcharts and wireframes.
Pricing is close: Spline starts at $9/mo versus $10/mo for Whimsical — not a deciding factor on its own.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Whimsical offers broader built-in capabilities (8 features vs 7), while Spline takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.