Comparison

Nouri vs Eigen

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

Head to head
About

Nouri

This app uses data from wearables like Whoop and Oura to provide personalized nutrition advice. It offers tailored food suggestions, grocery integration, and insights into how nutrients affect your body. Track your progress and achieve your health goals, from improved sleep to stress management.

Highlights
  • Wearable data integration (Whoop, Oura)
  • Personalized nutrition recommendations
  • Key Improvement Area (KIA) identification
  • Dietitian-designed guidance
  • Grocery delivery integration (Instacart)
  • Progress tracking against health metrics
Read full description

Optimize your health using the power of your Whoop & Oura data. Nouri translates your wearable metrics—HRV, RHR, Strain, Stress Score, Sleep Quality Metrics, Deep & REM Sleep, and more—into personalized nutrition insights that fuel recovery, boost energy, manage stress, improve sleep, and support cycle health. Why Nouri? -Wearable‑Driven: Automatic syncing with Whoop & Oura gives you real‑time, data‑backed nutrition feedback. -Personalized Recommendations: Nouri identifies your Key Improvement Area (KIA) and delivers targeted food and grocery suggestions—no guesswork required. -Dietitian‑Designed: Developed with certified dietitians to ensure balanced, science‑backed recommendations. -Progress Tracking: See how your nutrition moves the needle on your health metrics. -Seamless Delivery: Integrates with Instacart for instant grocery delivery of your tailored shopping list. Key Features 1. KIA Spotlight — Discover your most critical health metric and why it matters. 2. Nutrition Insights — Understand which nutrients (magnesium, electrolytes, omega‑3s, complex carbs, B‑complex vitamins, antioxidants) impact your body the most. 3. Boost Library — One‑click micro‑actions (hydration goals, breathing exercises, meal timing) that complement your meals for optimal results. 4. Long‑Term Goals — Support stress resilience, athletic performance, sleep quality, cycle health, immunity, mood & focus, weight management, and more. 5. Progress Tracking — Visualize correlations between diet changes and improvements in your wearable metrics. What Users Are Saying “Nouri’s wearable‑driven nutrition advice has transformed my recovery and sleep. The actionable boosts and nutrient insights keep me on track!” — Jamie T. Get Started 1. Download & open Nouri 2. Link your Whoop or Oura ring 3. Set your goals & explore your KIA Spotlight 4. Enjoy personalized nutrition recommendations—and see real results! Transform the way you eat and feel—download Nouri today! Privacy Policy: https://www.nourihealth.com/privacy-policy Terms of Use (EULA): https://www.nourihealth.com/terms-of-service

About

Eigen

This app acts as your personal trainer, offering real-time feedback on your workouts using your Apple Watch. It tracks your performance, analyzes your form to prevent injuries, and helps you set and achieve fitness goals.

Highlights
  • Real-time workout feedback
  • Form accuracy analysis
  • Injury risk alerts
  • Set fitness goals
  • Track workout history
  • Design workout programs
  • Connect with coaching partners
Features
Read full description

Take todays gym session to the next level with your new Personal Trainer on your Apple Watch. Achieving fitness goals has never been easier. Your Apple Watch tracks your every move, providing you with deep analytics on your performance and help you optimize your training routine for the best results. And if your lifting form is showing signs of potential injury, you’ll be alerted in real-time to correct your technique. Download today to get access to everything you need to make the most of todays gym session: + Set time-specific fitness goals and track your progress, + Keep insightful logs of your workout history + Design sophisticated workout programs + Reach your goals even quicker by connecting with our global network of Coaching Partners + Increase your strength by tracking exercise-specific working max. history + Download professional training programs curated by EigenFitness Coaching Partners + Allow access to Apple HealthKit for heart rate monitoring during sets The Eigen Apple Watch app Download the Eigen app today for your Apple Watch to get real-time audio feedback on: + Range of Motion (ROM) + Power Output + Velocity + Tempo + Automatic Rep Count + Form Accuracy + Rep Variation + Injury Risk Analysis + Joint Angles Workout like a pro today and get results quicker — without the risk of injury. Connect with Elite Strength Coaches EigenFitness partners with Elite Strength Coaches around the world, who trust Eigen to maximize their Athletes’ performance. Find a Coaching Partner that understands your goals and has a track record of successfully helping Athletes like you to excel in the gym. And with the Eigen Apple Watch app, your Coach stays up-to-date on your latest lifting performance, regardless of where in the world they are. For more information, check out https://eigenfitness.com.

Screenshots

Nouri4 screens
Eigen4 screens

Verdict

The call

The clearest difference is in-app purchases: Eigen at none against Nouri's 2. Eigen also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, review sentiment, update cadence 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. Nouri sells 2 in-app purchases, starting at $4.99 per month. Eigen asks for nothing beyond the download.

UpkeepUpdate frequency

Nouri ships an update weekly, Eigen every 4 days. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
Nouri versus Eigen: the parameters behind the verdict, then further details
ParameterNouriEigen
PriceFreeFree
Rating3.9 (8 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better—
Update frequencyWeeklyEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.013.0 — better
Further details — not scored
Size115 MB84 MB
Age rating4+4+
DeveloperNouri Health Inc.Connor Holowachuk

Customer experience

Nouri

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Eigen

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Nouri

Subscriptions2
  • Unlimited access3 Days trial$4.991 Month
  • Unlimited access3 Days trial$39.991 Year
None

Eigen

No in-app purchases

Questions

Is Nouri free?
Nouri is free to download, with in-app purchases available.
Is Eigen free?
Eigen is free to download, with no in-app purchases.
Do Nouri or Eigen have ads?
Nouri shows ads; Eigen does not.
Which is updated more often, Nouri or Eigen?
Nouri ships an update weekly, and Eigen every 4 days. Most recently, Nouri was updated on October 24, 2026 and Eigen on October 6, 2026.

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