Comparison

ARMOR vs Sidecar ML

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ARMOR

Simulate robot dynamics with a powerful physics engine and visualize them in augmented reality. Load and inspect URDF robot files, edit them, and export for further development. Ideal for engineers, students, and researchers working with robotics.

Highlights
  • MuJoCo physics engine
  • Advanced URDF viewer
  • Built-in editor and export
  • Humanoid and spatial robot visualization
  • Robot arm kinematics
  • Augmented Reality (AR) integration
  • ROS workflow integration
Features
Read full description

ARMOR brings real MuJoCo physics simulation to your pocket. Load any URDF (Unified Robot Description Format) robot, simulate true dynamics, and place it in AR — directly on iPhone, iPad, and Mac. Built for robotics engineers, students, and researchers, ARMOR bridges the gap between desktop-grade simulation and mobile accessibility — inspect joint kinematics, fine-tune a humanoid's balance, or demo a collaborative robot arm, all without a workstation. KEY FEATURES: • MuJoCo Physics Engine: Leverage the industry-standard MuJoCo engine for high-fidelity physics simulations. ARMOR makes it easy to visualize joint dynamics and collisions on mobile hardware. • Advanced URDF Viewer: Load and inspect your own URDF robot files—the standard XML format produced by ROS and XACRO workflows. ARMOR handles complex links, joints, and geometries with ease, providing a comprehensive engineering view of your robot's structure. • Built-In Editor & Export: Create and edit links and joints with guided wizards, then export your project as a ROS-style URDF package or a MuJoCo MJCF file to continue your work on the desktop. • Humanoid & Spatial Robot Visualization: Perfect for visualizing cutting-edge platforms. Load models similar to the Boston Dynamics Atlas or open-source humanoids like the Reachy Mini to study their form and motion in a spatial context. • Robot Arm Kinematics: A vital tool for industrial automation and cobot development. Inspect robot arms like the ABB YuMi and other multi-axis systems with precision. • Augmented Reality (AR): Move from the screen to the real world. Place your robot models in your physical environment at 1:1 scale to assess spatial dimensions and workplace layout. • Engineering Workflow Integration: Designed for the modern robotics professional. ARMOR supports standard file formats, making it the perfect companion for ROS (Robot Operating System) workflows. WHY ARMOR? ARMOR was built by engineers, for engineers. By bridging the gap between desktop simulation and mobile accessibility, ARMOR allows you to present your robotics projects to clients, teach engineering concepts in the classroom, or debug kinematics during a field test—all from your mobile device. COMPATIBILITY: ARMOR supports a wide range of URDF configurations, including those used for humanoid robots, industrial grippers, and mobile platforms. Optimized for the latest iOS hardware to ensure smooth, fluid rendering even for complex assemblies. Disclaimer: ARMOR is an independent third-party application and is not affiliated with, sponsored by, or endorsed by Boston Dynamics, ABB, or the MuJoCo project. References to third-party trademarks and robot models are for nominative and descriptive purposes only, to indicate compatibility and visualization capabilities. All other trademarks are the property of their respective owners. Terms and Conditions: https://armor.dc-engineer.com/terms.html

About

Sidecar ML

Features
Read full description

Turn your iPhone into a private, on-device AI server for your whole network. Sidecar ML runs a lightweight HTTP server on your iPhone that exposes Apple's built-in machine-learning models to any device on your local network. Tap Start Server, scan the QR code, and your Mac, PC, Raspberry Pi, or browser can call powerful on-device AI over plain REST — no cloud, no accounts, no API keys, no usage fees, and no data leaving your network. Everything runs on the phone. Nothing is uploaded to a server and there's nothing to pay for. (The one exception, music recognition, matches against Apple's catalog and tells you so up front.) ONE IPHONE, A DOZEN AI CAPABILITIES • Chat with the on-device large language model through a chat-completions endpoint that's compatible with the popular OpenAI API format — streaming, JSON mode, and structured output included. Point existing tools and SDKs at your phone and they just work. • Generate images from a text prompt in a choice of art styles. • OCR — pull text out of photos, receipts, and screenshots with per-line boxes and multi-language support. • Read barcodes and QR codes (EAN, Code128, and more). • Classify images across roughly a thousand categories, or produce image embeddings for similarity search. • Remove backgrounds and isolate subjects or people as clean PNG cut-outs. • Detect faces and facial landmarks, body pose, and hand pose. • Scan documents with automatic edge detection and perspective correction. • Convert speech to text and text to speech, with a wide range of voices (including Personal Voice). • Translate text between languages completely offline. • Analyse text: language, sentiment, named entities, tokens, and embeddings. • Classify sounds across hundreds of categories, or identify the music that's playing. BUILT FOR DEVELOPERS AND MAKERS • Clean REST + Server-Sent Events API — call it from curl, Python, JavaScript, or any HTTP client. • Chat endpoint compatible with the OpenAI format, so many existing tools and SDKs work unchanged. • Automatic discovery on your network via Bonjour. • Honest capability reporting: ask the server what it can do and it tells you exactly what's available on your device, and why. • Optional bearer-token authentication to lock the server down on shared networks. FREE WEB CONSOLE AND CODE EXAMPLES A ready-to-use web console — plus Python examples, a command-line client, and full API documentation — is free and open-source. Download the single-file console and browse the source here: https://github.com/AndersFB/Sidecar-ML-Console/ Open the console in any browser, enter your phone's address, and try every capability with a friendly UI — nothing to install. GOOD TO KNOW • The on-device large language model and image generation require an Apple Intelligence-capable iPhone. The other capabilities run on a much wider range of devices. • The server runs while the app is in the foreground; a keep-awake option helps during longer sessions. • Some features (offline translation language pairs and certain speech models) download their models on first use. Turn the iPhone in your pocket into a private AI endpoint for your projects, your home lab, and your prototypes — Sidecar ML.

Screenshots

ARMOR4 screens
Sidecar ML4 screens

Verdict

The call

The clearest difference is in-app purchases: Sidecar ML at none against ARMOR's 3. ARMOR's advantage is update cadence (every 2 weeks vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ARMOR sells 3 in-app purchases, starting at $4.99 per month. Sidecar ML asks for nothing beyond the download.

UpkeepUpdate frequency

ARMOR ships an update every 2 weeks, Sidecar ML monthly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
ARMOR versus Sidecar ML: the parameters behind the verdict, then further details
ParameterARMORSidecar ML
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS18.0 — better26.0
Further details — not scored
Size36 MB4 MB
Age rating4+4+
DeveloperEliott RadcliffeAnders Fog Bunzel

In-app purchases

3 purchases

ARMOR

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Yearly$49.991 Year
One-time1
  • Premium Lifetime$99.99
None

Sidecar ML

No in-app purchases

Questions

Is ARMOR free?
ARMOR is free to download, with in-app purchases available.
Is Sidecar ML free?
Sidecar ML is free to download, with no in-app purchases.
Do ARMOR or Sidecar ML have ads?
Neither ARMOR nor Sidecar ML shows ads.
Which is updated more often, ARMOR or Sidecar ML?
ARMOR ships an update every 2 weeks, and Sidecar ML monthly. Most recently, ARMOR was updated on October 31, 2026 and Sidecar ML on October 29, 2026.

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