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Design Tools · head to head

Spline vs Structured

Spline logo

Spline

Design Tools

3D design tool for the web

From
Free
Rated
-
Full reviewWebsite
S

Structured

Productivity

Visual daily planner for time blocking

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Spline aI generation features produce inconsistent and often distorted results, failing at basic depth perception tasks; Structured no monthly view available, only daily and weekly views, limiting ability to preview long-term schedules
  • They diverge on capability: Spline covers 3D modeling, Structured covers Visual timeline.

Where they differ

Only the attributes on which Spline and Structured actually diverge.

Attributes where Spline and Structured differ
AttributeSplineStructured
Pricing modelfreemiumUnknown
PlatformsWeb, iOS, Android, visionOSiOS, iPadOS, macOS, Android, Web, Apple Watch
CategoryDesign ToolsProductivity

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), founded (2020).

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 Structured

  • Visual timeline
  • Time blocking
  • Calendar integration
  • Widgets
  • Recurring tasks
  • Apple Calendar
  • Google Calendar
  • Apple Reminders

What people use each for

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

Spline

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

Structured

  • Productivitynot Spline
  • Collaborationnot Spline
  • Task managementnot Spline
  • Organizationnot 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

Structured

  • No monthly view available, only daily and weekly views, limiting ability to preview long-term schedules
  • Cannot export to Excel, PDF, or other printable formats; only JSON export available on Apple devices
  • Calendar import requires Pro subscription (except on web where free import is available)
  • Android and web versions significantly lag behind iOS version in features and performance
  • One-way calendar sync only; cannot export Structured tasks back to Google Calendar or other external calendar apps

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

Structured

Free
  • FreeFree
    • Timeline tasks and all-day tasks
    • Task subtasks and notes
    • Icons and color coding
  • Pro$null/month or year or lifetime
    • Structured AI for smart planning
    • Calendar and reminders import
    • Recurring tasks

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.
Spline review

Choose Structured if

  • You need visual timeline.
  • You want to start without paying.
  • You work on iOS, iPadOS, macOS, Android, Web, Apple Watch.
  • You also want time blocking.
Structured review

Questions people ask

Is Spline or Structured better?
Neither clearly leads. Spline starts at Free and Structured at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Spline or Structured?
Spline starts at Free and Structured at Free.
Does Spline or Structured run on more platforms?
Spline runs on Web, iOS, Android, visionOS. Structured runs on iOS, iPadOS, macOS, Android, Web, Apple Watch.
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 Structured is typically brought in for.
What can Spline do that Structured cannot?
Spline covers 3D modeling, Real-time collaboration, Animations, Interactions. Structured covers Visual timeline, Time blocking, Calendar integration, Widgets.

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
Structured: Is Structured free to use?

Yes, Structured has a free tier that includes timeline tasks, all-day tasks, inbox tasks, subtasks, notes, icons, color coding, drag and drop, and calendar import on web (though calendar import requires Pro on iOS/Android). The app is free to download on iOS, Android, Mac, and web.

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
Structured: What does Structured Pro cost and what features does it add?

Structured Pro is available as a monthly or yearly subscription, or as a one-time lifetime purchase for $99.99 USD. Pro adds Structured AI, calendar import and reminders import (on iOS/Android), recurring tasks, replan functionality, custom notifications, and custom color palettes.

Source
Structured: Can I import my Google Calendar into Structured?

Yes, Structured supports importing calendars from Google Calendar, Outlook, Microsoft Exchange, Yahoo, and AOL. On iOS, it connects through Apple Calendar compatibility. On Android and web, you authenticate with your Google account and select which calendars to sync. This feature requires a Structured Pro subscription.

Source
Structured: Can I export my tasks from Structured and in what formats?

On Apple devices, you can export your data as a JSON file through Settings > About > Privacy & Permissions > Export Your Data. However, you cannot export tasks to external calendars, nor can you export to printable formats like Excel or PDF. Export is one-way only.

Source
Structured: Does Structured work across all my devices?

Yes, Structured syncs across iPhone, iPad, Mac, Apple Watch, and Android devices. However, users have reported that iCloud synchronization can be unreliable, and the Android and web versions have fewer features and slower performance compared to the iOS version.

Source
Structured: What calendar and reminder apps does Structured integrate with?

On iOS, Structured can import from Apple Calendar, Reminders, Google Calendar, Outlook, Microsoft Exchange, Yahoo, and AOL. On Android and web, it supports Google Calendar. Structured can import events and reminders, but cannot export tasks back to external calendars.

Source
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