Needle vs. Babylon.JS vs. Reality Composer Pro

See how Needle, Babylon.JS, and Reality Composer Pro compare across key features and capabilities for usage on the web and creating XR experiences for designers, developers and teams.

View all platform comparisons
Web-first runtime integrated with Unity and Blender plugins, complemented by Needle Cloud for optimization and hosting.
Needle
Open-source engine/framework with integrated visual tools, focusing on ease of use and comprehensive features for games and applications.
Babylon.JS
Apple's advanced visual authoring tool integrated with Xcode for creating 3D scenes and spatial computing experiences for Apple platforms (especially visionOS) using RealityKit.
Reality Composer Pro
Core Platform & Workflow
Solution Type
3D Engine
Cloud Platform
Authoring Tool
Optimization Tool
Web Component
Needle
Solution Type: 3d-engine, cloud-platform, authoring-tool, optimization-tool, web-component
A comprehensive suite including a runtime engine, cloud services for optimization/hosting, authoring via Unity/Blender plugins, and embeddable web component output.
3D Engine
Web Component
Authoring Tool
Babylon.JS
Solution Type: 3d-engine, web-component, authoring-tool
A comprehensive framework providing an engine, rendering capabilities, and integrated tools like the Node Material Editor and Inspector.
Authoring Tool
Reality Composer Pro
Solution Type: authoring-tool
A visual editor for creating RealityKit scenes, tightly integrated with Xcode for Apple platform development.
Made for the web
Needle
Made for the web: Yes
Built from the ground up for the web, focusing on fast loading, efficient rendering, and cross-platform web deployment.
Babylon.JS
Made for the web: Yes
Specifically designed and optimized for high-performance web rendering.
N/A (Native Apple)
Reality Composer Pro
Made for the web: N/A (Native Apple)
Optimized exclusively for performance on Apple hardware (iOS, macOS, visionOS).
Typical Workflows
Unity Editor
Blender Editor
Code
HTML
Asset Upload
Needle
Typical Workflows: Unity Editor, Blender Editor, Code, HTML, Asset Upload
Primary workflow involves using Unity or Blender as the authoring environment, exporting scenes and logic. Custom scripts (TypeScript/JavaScript) extend functionality.
Code
Web Editor
Babylon.JS
Typical Workflows: Code, Web Editor
Supports both code-based development (TypeScript/JavaScript) and visual tools like the Node Material Editor and Inspector for scene/material configuration.
Standalone Editor
Reality Composer Pro
Typical Workflows: Standalone Editor
Provides a visual interface within Xcode for assembling scenes, materials, and basic behaviors. Complex logic requires Swift code.
Use with Unity
Needle
Use with Unity: Yes
Deep integration with Unity Editor via dedicated plugin, allowing export of scenes, C# scripts (transpiled), materials (Shader Graph), animations, and components.
Babylon.JS
Use with Unity: No
No direct integration. Assets from Unity require export (e.g., glTF).
Reality Composer Pro
Use with Unity: No
Direct competitor/alternative for native Apple development.
Use with Blender
Needle
Use with Blender: Yes
Integration with Blender via addon, supporting export of scenes, materials, animations, and custom logic nodes.
Babylon.JS
Use with Blender: Yes
Provides an official exporter plugin for Blender to facilitate asset transfer.
Reality Composer Pro
Use with Blender: No
Primarily consumes USDZ format. Assets from Blender need conversion.
Interactivity Building Blocks
Needle
Interactivity Building Blocks: Yes
Includes a rich set of components for common interactions, animations, and UI elements.
Limited
Babylon.JS
Interactivity Building Blocks: Limited
Offers various built-in behaviors and components for camera controls and similar, but interactions need to be created either through code or graph-based systems.
Reality Composer Pro
Interactivity Building Blocks: Yes
Provides components for common AR interactions and behaviors integrated with the broader Apple ecosystem.
Extensible with Coding
Needle
Extensible with Coding: Yes
Uses TypeScript with full IDE support in both Unity and standalone projects.
Babylon.JS
Extensible with Coding: Yes
Supports JavaScript or TypeScript development with comprehensive API.
Reality Composer Pro
Extensible with Coding: Yes
Can be extended with Swift programming, but only for Apple platforms.
Engine Capabilities
Physically-Based Rendering
Needle
Physically-Based Rendering: Yes
Supports Physically Based Rendering (PBR), custom shaders (via Unity Shader Graph export), lighting, and post-processing effects.
Babylon.JS
Physically-Based Rendering: Yes
Offers advanced rendering features including PBR, IBL, advanced lighting and shadowing techniques, and post-processing effects.
Reality Composer Pro
Physically-Based Rendering: Yes
Leverages RealityKit's USD-based rendering engine optimized for Apple platforms.
Component System
Needle
Component System: Yes
Leverages the component-based architecture of Unity/Blender, extended with custom web-specific components.
Babylon.JS
Component System: Yes
Uses an Entity Component System pattern (Nodes and Components).
Reality Composer Pro
Component System: Yes
Built on RealityKit's Entity Component System.
Built-in Networking
Needle
Built-in Networking: Yes
Built-in real-time networking for multiplayer and collaborative applications.
Babylon.JS
Built-in Networking: No
Requires external libraries or custom implementation for real-time networking.
Via Native Frameworks
Reality Composer Pro
Built-in Networking: Via Native Frameworks
Networking is handled using standard Apple frameworks (e.g., Network.framework).
Timelines and Sequencing
Needle
Timelines and Sequencing: Yes
Supports timeline-based sequencing, complex animations, animator state machines, blending, and more.
Babylon.JS
Timelines and Sequencing: No
Sequencing animations involves programming, not via a timeline or dedicated tools.
Reality Composer Pro
Timelines and Sequencing: Yes
Supports timeline-based animation and sequencing through OpenUSD.
Animation Controls
Needle
Animation Controls: Yes
Supports complex animations authored in Unity (Animator, Timeline) or Blender and exports them for the web.
Babylon.JS
Animation Controls: Yes
Includes an advanced animation system supporting keyframes, skeletal animation, and blending.
Reality Composer Pro
Animation Controls: Yes
Supports creating and controlling animations within RealityKit scenes.
Animated Materials
Needle
Animated Materials: Yes
Supports material animations, shader graph, and procedural material effects.
Babylon.JS
Animated Materials: Yes
Rich support for material animation, dynamic textures, and shader effects.
Reality Composer Pro
Animated Materials: No
Material properties can't be animated, but some shader-based animations are possible.
Audio Playback
Needle
Audio Playback: Yes
Supports spatial audio configured via Unity/Blender components.
Babylon.JS
Audio Playback: Yes
Features a comprehensive audio engine with support for spatial audio and effects.
Reality Composer Pro
Audio Playback: Yes
Leverages RealityKit's spatial audio features.
Video Playback
Needle
Video Playback: Yes
Supports video textures and playback controlled via components.
Babylon.JS
Video Playback: Yes
Supports video textures.
Reality Composer Pro
Video Playback: Yes
Supported via RealityKit.
Physics Integration
Needle
Physics Integration: Yes
Integrates with physics engines, configured via Unity/Blender components.
Babylon.JS
Physics Integration: Yes
Offers built-in physics integration with plugins for Havok and other engines.
Reality Composer Pro
Physics Integration: Yes
Integrates with RealityKit's physics simulation capabilities.
glTF 3D Support
Excellent
Needle
glTF 3D Support: Excellent
Uses glTF as its core runtime format and supports import of various formats (FBX, USD, VRM etc.) which are converted.
Excellent
Babylon.JS
glTF 3D Support: Excellent
Support for the glTF 2.0 standard, including many extensions.
Reality Composer Pro
glTF 3D Support: No
Focuses on OpenUSD content; glTF requires manual conversion.
Custom User Interfaces
Needle
Custom User Interfaces: Yes
Facilitates creation of UI using standard HTML/CSS and frontend frameworks, integrated with the 3D scene.
Babylon.JS
Custom User Interfaces: Yes
Includes a dedicated 2D GUI system (Babylon GUI) for creating interfaces in 3D space or screen space.
Reality Composer Pro
Custom User Interfaces: Yes
Integrates with SwiftUI for creating user interfaces in spatial contexts.
Web Integration & Deployment
Web Component
Needle
Web Component: Yes
Exports projects as standard web components (<needle-engine> tag) for easy embedding into any HTML page or web application.
Babylon.JS
Web Component: Yes
Offers the Babylon Viewer, a web component for easily embedding models.
Reality Composer Pro
Web Component: No
Strictly for native Apple platform development.
PWA Support
Needle
PWA Support: Yes
Being web-native, Needle Engine projects can be easily included in Progressive Web Apps for offline capabilities and installation.
Babylon.JS
PWA Support: No
As a web-native JavaScript library, it can be used within Progressive Web Apps but provides no specific PWA features itself.
Reality Composer Pro
PWA Support: No
Not applicable.
HTML/CSS Integration
Excellent
Needle
HTML/CSS Integration: Excellent
Designed to seamlessly integrate with HTML, CSS, and frontend frameworks (React, Vue, Svelte etc.), allowing blending of 2D UI and 3D content.
Babylon.JS
HTML/CSS Integration: Yes
Designed for the web, allowing integration with standard HTML/CSS and frontend frameworks.
Reality Composer Pro
HTML/CSS Integration: No
Operates entirely within the native Apple ecosystem.
Host Anywhere
Needle
Host Anywhere: Yes
The core runtime can be self-hosted on any static server. Needle Cloud features (optimization, hosting, analytics) require the cloud service.
Babylon.JS
Host Anywhere: Yes
Typically deployable on static web servers.
Reality Composer Pro
Host Anywhere: No
Tool is part of the Xcode development environment.
Asset Hosting
Needle
Asset Hosting: Yes
Needle Cloud provides managed hosting and CDN delivery for optimized assets.
Babylon.JS
Asset Hosting: No
Requires external hosting for assets.
Reality Composer Pro
Asset Hosting: No
Assets are bundled with the application.
App Hosting
Needle
App Hosting: Yes
Needle Cloud provides managed hosting and CDN delivery for optimized applications.
Babylon.JS
App Hosting: No
Requires external hosting for the application files. Quick experiments can be hosted in the Playground.
Reality Composer Pro
App Hosting: No
Not a hosting platform; used for creating applications.
Performance & Optimization
Engine Size
Medium
Needle
Engine Size: Medium
Optimized runtime aims for minimal footprint, size depends on included features.
Medium
Babylon.JS
Engine Size: Medium
Core engine size is moderate, reflecting its rich feature set. Modular structure allows including only needed parts.
N/A (OS Framework)
Reality Composer Pro
Engine Size: N/A (OS Framework)
RealityKit is part of the operating system.
Loading Performance
Excellent
Needle
Loading Performance: Excellent
Rapid development cycles and fast loading times through optimized runtime and asset handling.
Moderate
Babylon.JS
Loading Performance: Moderate
Load times depend on included features and assets, generally good.
Fast
Reality Composer Pro
Loading Performance: Fast
Benefits from native code and tight OS integration.
Runtime Performance
Excellent
Needle
Runtime Performance: Excellent
Designed for efficient rendering performance across desktop, mobile, and XR devices.
High
Babylon.JS
Runtime Performance: High
Strong rendering performance, good WebGPU support.
High
Reality Composer Pro
Runtime Performance: High
Optimized for high performance on Apple silicon.
Smart Asset Optimization
Excellent
Needle
Smart Asset Optimization: Excellent
Needle Cloud provides significant automated optimization: LOD generation, mesh optimization, extensive texture compression (Basis Universal, WebP, JPG, PNG) and resizing options.
Babylon.JS
Smart Asset Optimization: Yes
Supports optimized formats (glTF, Draco, Basis Universal) and tools like the Inspector can aid optimization workflows. Some geometry/texture optimization possible.
Reality Composer Pro
Smart Asset Optimization: Yes
Works with the optimized USDZ format. Includes Object Capture (photogrammetry) for model creation.
Mesh and Texture LODs
Excellent
Needle
Mesh and Texture LODs: Excellent
Supports automatic mesh simplification, level-of-detail generation and automatic texture compression with multiple quality levels.
Babylon.JS
Mesh and Texture LODs: No
No automatic mesh or texture LOD generation, but imported assets can have mesh LODs.
Reality Composer Pro
Mesh and Texture LODs: No
No automatic LOD management or simplification.
XR Support (AR/VR/Spatial)
VR Support (WebXR)
Needle
VR Support (WebXR): Yes
Supports VR headsets via the WebXR standard.
Babylon.JS
VR Support (WebXR): Yes
Robust support for VR experiences via the WebXR standard.
Reality Composer Pro
VR Support (WebXR): No
Not supported.
AR Support (WebXR)
Needle
AR Support (WebXR): Yes
Supports markerless WebAR on compatible Android devices via the WebXR standard.
Babylon.JS
AR Support (WebXR): Yes
Supports markerless AR on Android via WebXR.
Reality Composer Pro
AR Support (WebXR): No
Not supported.
AR Support (iOS)
Needle
AR Support (iOS): Yes
Supports interactive markerless WebAR on iOS devices via WebXR.
Limited
Babylon.JS
AR Support (iOS): Limited
Non-interactive USDZ export of static assets via `USDZExportAsync().`
Reality Composer Pro
AR Support (iOS): Yes
Creates content for ARKit/RealityKit apps on iOS/iPadOS.
AR Support (visionOS)
Needle
AR Support (visionOS): Yes
Explicit support for creating spatial computing experiences deployable on visionOS.
Limited
Babylon.JS
AR Support (visionOS): Limited
Non-interactive USDZ export of static assets via `USDZExportAsync()`.
Reality Composer Pro
AR Support (visionOS): Yes
A primary tool for developing spatial computing experiences for visionOS.
AR Tracking Types
Surface
Image
Needle
AR Tracking Types: Surface, Image
Supports World Tracking via the WebXR standard on compatible devices. Image tracking is supported on iOS AR but requires a device-specific flag for Android AR.
Surface
Babylon.JS
AR Tracking Types: Surface
Supports World Tracking via WebXR, with extensions for other features like image/marker tracking.
Surface
Face
Object
Reality Composer Pro
AR Tracking Types: Surface, Face, Object
Leverages the full capabilities of ARKit (World, Image, Face, Body, Object, Location Anchors, etc.).
Ecosystem & Support
Official Support Availability
Needle
Official Support Availability: Yes
Dedicated support available for licensed users.
Babylon.JS
Official Support Availability: No
Community support is available, but official support is only provided for Enterprise customers.
Reality Composer Pro
Official Support Availability: No
Community support available through the Apple Developer Program.
Learning Resources
Needle
Learning Resources: Yes
Extensive documentation, tutorials, live samples, and active community support.
Babylon.JS
Learning Resources: Yes
Rich resources including the Playground for live coding, extensive documentation, examples, and tutorials.
Excellent
Reality Composer Pro
Learning Resources: Excellent
Extensive resources including official documentation, WWDC session videos, tutorials, and sample code.
License
Commercial
Needle
License: Commercial
Commercial license required for full features and deployment. Free evaluation available.
Open Source
Babylon.JS
License: Open Source
Available under the permissive Apache License 2.0.
Free
Reality Composer Pro
License: Free
Included free as part of Apple's developer tools.

FAQ – frequently asked questions

Needle Cloud arrow_upward

Needle Engine arrow_upward

Usecases arrow_upward

Licensing and Compliance arrow_upward

Company Roadmap FAQ Compare Solutions Report Problem

Send us a message

Send a message to the Needle team. Please describe any feedback you have, if you encountered any problem on the website or send us a feature request. We will get back to you as soon as possible.
Contact

Send us a message

Send a message to the Needle team. Please describe any feedback you have, if you encountered any problem on the website or send us a feature request. We will get back to you as soon as possible.
Imprint