Comparison

3motionAI Pro vs Eigen Running

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

Head to head
About

3motionAI Pro

Analyze human motion with advanced biomechanics technology using just your smartphone. Get real-time insights into range of motion and functional movement with easy-to-understand data visualizations and summary reports.

Highlights
  • Real-time motion tracking
  • Range of motion analysis
  • Functional movement scoring
  • Smartphone-only operation
  • Data visualizations
  • Summary reports
  • Science-driven insights
Features
Read full description

Discover a new way to evaluate human motion using 3motionAI’s revolutionary technology. Our Lite app offers essential insights into human movement, making it accessible for all applications. FOCUSED FUNCTIONALITY Experience the core of our advanced biomechanics analysis. Track key data points in real-time, focusing on fundamental aspects of motion like range of motion and basic functional movement including summary scoring. EFFORTLESS AND ACCESSIBLE Get started without any specialized hardware. Our app works with just your smartphone, enabling movement analysis anytime, anywhere. It's designed for simplicity, ensuring anyone can benefit from our technology. PRACTICAL INSIGHTS Turn complex biomechanical data into understandable and useful information. The app provides essential data visualizations and summary reports, laying the groundwork for more detailed analyses and recommendations in subsequent versions. SCIENCE-DRIVEN Built on a foundation of 15 years of biomechanics research, our app offers reliable and scientifically-validated insights. As we evolve, expect continuous enhancements rooted in the latest scientific advancements. 3motionai provides products and services designed for general fitness, wellness and athletic performance purposes. 3motionai products and services are not intended to treat or diagnose any disease, and should not be used as a substitute for professional medical advice, diagnosis or treatment. All content available through 3motionai products and services is for general informational purposes only.

About

Eigen Running

Features
Read full description

Eigen helps runners find better shoes using their own biomechanics. Scan your feet, record a short running video, add your injury history and preferences, and get personalized shoe recommendations with clear explanations. Built for runners who want less guesswork and a better fit from day one.

Screenshots

3motionAI Pro4 screens
Eigen Running4 screens

Verdict

The call

The clearest difference is update cadence: 3motionAI Pro at every 3 weeks against Eigen Running's every 5 months. 3motionAI Pro also leads on iOS requirement (15 vs 18.6). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

3motionAI Pro ships an update every 3 weeks, Eigen Running every 5 months. The most recent releases landed on September 19, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 7 level
3motionAI Pro versus Eigen Running: the parameters behind the verdict, then further details
Parameter3motionAI ProEigen Running
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15 — better18.6
Further details — not scored
Size143 MB70 MB
Age rating4+12+
Developer3MotionAI Inc.Eigen Running GmbH

In-app purchases

None

3motionAI Pro

No in-app purchases

None

Eigen Running

No in-app purchases

Questions

Is 3motionAI Pro free?
3motionAI Pro is free to download, with no in-app purchases.
Is Eigen Running free?
Eigen Running is free to download, with no in-app purchases.
Do 3motionAI Pro or Eigen Running have ads?
Neither 3motionAI Pro nor Eigen Running shows ads.
Which is updated more often, 3motionAI Pro or Eigen Running?
3motionAI Pro ships an update every 3 weeks, and Eigen Running every 5 months. Most recently, 3motionAI Pro was updated on September 19, 2026 and Eigen Running on October 30, 2026.

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