Comparison

Vayu vs NutriScience AI

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

Head to head
About

Vayu

This app offers guided breathing exercises with haptic and audio feedback to promote relaxation and mindfulness. It features personalized sessions, reminders, and an AI chatbot for wellness guidance, all accessible from your Apple Watch.

Highlights
  • Personalized breathing sessions
  • Haptic and audio guidance
  • Mindfulness reminders
  • Health app integration
  • AI-powered wellness chatbot
  • Breathing analytics dashboard
Features
Read full description

Vayu is your breathing companion for a calmer mind and body, now on iPhone and iPad. Close your eyes and follow the breath. Vayu guides every inhale, hold, and exhale with gentle haptics and immersive sound, so you can practice with your eyes closed instead of staring at a screen. A few quiet minutes is enough to settle your nervous system, ease stress, sharpen focus, or wind down for sleep. WHY VAYU Screen-free guidance. Gentle taps lead each phase of the breath, so the practice comes to you. Tuned to you. Your heart rate and HRV inform the sessions Vayu suggests, so the practice fits where your body is right now. Built for real life. Two minutes between meetings, or a longer session before bed. There is nothing to catch up on. WHAT'S INSIDE - Guided techniques: box breathing, alternate nostril, 4-7-8, physiological sigh, and more classic pranayama. - Curated sessions for stress, sleep, focus, and energy. - Heart rate and HRV insights that show how each session calms your body. - A personal AI coach that suggests the right practice for this moment. - A private journal for your mood and reflections. - Streaks and a simple dashboard to see your progress over time. - An Apple Watch companion for breathwork on your wrist. - Breathe better, live better. Take a breath, and begin. Privacy Policy: https://vayu-prana.com/privacy Terms of Use: https://vayu-prana.com/terms

About

NutriScience AI

Features
Read full description

Discover how your body responds to food, exercise, sleep, and stress with NutriScience-AI — a complete metabolic health platform powered by intelligent insights and personalized coaching. Track your habits, understand your body, and make smarter health decisions with real-time data and AI-driven recommendations. Key Features: - Track nutrition, activity, sleep, and stress - AI-powered insights - Personalised recommendations - Clean and intuitive UI Subscription Details: - Weekly Plan: $0.99/week - Monthly Plan: $2.99/month - Yearly Plan: $29.99/year Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Vayu4 screens
NutriScience AI4 screens

Verdict

The call

The clearest difference is ads: NutriScience AI at none against Vayu's shown. Vayu's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement 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. Vayu sells 3 in-app purchases, starting at $8.99 per month and NutriScience AI sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Vayu ships an update every 4 days, NutriScience AI every 3 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Vayu versus NutriScience AI: the parameters behind the verdict, then further details
ParameterVayuNutriScience AI
PriceFreeFree
Rating3.9 (17 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings17 — better—
Update frequencyEvery 4 daysEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS16.6 — better17.6
Further details — not scored
Size196 MB20 MB
Age rating12+17+
DeveloperPrana Labs Inc.Aditya Rai

In-app purchases

3 purchases

Vayu

Subscriptions2
  • Vayu Pro Plan$8.991 Month
  • Vayu Pro Plan7 Days trial$59.991 Year
One-time1
  • Vayu by Prana Lifetime$499.99
3 purchases

NutriScience AI

Subscriptions3
  • NutriScience AI Weekly$0.997 Days
  • NutriScience AI Monthly$2.991 Month
  • NutriScience AI Annual$29.991 Year

Questions

Is Vayu free?
Vayu is free to download, with in-app purchases available.
Is NutriScience AI free?
NutriScience AI is free to download, with in-app purchases available.
Do Vayu or NutriScience AI have ads?
Vayu shows ads; NutriScience AI does not.
Which is updated more often, Vayu or NutriScience AI?
Vayu ships an update every 4 days, and NutriScience AI every 3 days. Most recently, Vayu was updated on October 5, 2026 and NutriScience AI on October 10, 2026.

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