Comparison

VO2 Prime vs interfasting

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

Head to head
About

VO2 Prime

Features
Read full description

This app transforms VO2 Max and Resting Metabolic Rate (RMR) test results into daily guidance for nutrition and recovery optimization. Users can track how their body burns fat vs carbs, monitor biological age, and receive tailored insights for training and lifestyle. It provides access to personalized meal plans, recipes, and workout builders — all powered by personal metabolic analysis and breath-based testing. Key Features: • Dashboard with activity, nutrition, recovery, and metabolic data. • Personalized nutrition planning with meal plans and smart recommendations. • Training builder aligned with VO2 Max and RMR test results. • Recovery tracking with biological age and fat vs carb burn metrics.

About

interfasting

This app helps users achieve wellness goals through intermittent fasting. It offers custom fasting plans, real-time progress tracking, and detailed statistics on fasting success and weight changes. The app prioritizes privacy with local data storage and no account creation required.

Highlights
  • Custom fasting plans (16:8, 18:6, 20:4)
  • Real-time progress countdown
  • Session history and statistics
  • Weight tracking and visualization
  • Success/failure tracking
  • Data export for healthcare providers
  • Local data storage for privacy
Features
Read full description

https://www.apple.com/legal/internet-services/itunes/dev/stdeula/I nterFasting - Your Complete Fasting Companion Transform your health journey with InterFasting, the ultimate fasting timer designed to help you achieve your wellness goals through intermittent fasting. CORE FEATURES: • Custom Fasting Plans: Choose from popular protocols like 16:8, 18:6, 20:4, or create your own custom fasting schedule • Real-Time Progress Tracking: Beautiful circular progress indicator shows your fasting progress with live countdown • Session History & Statistics: Track your fasting success rate, longest streaks, and overall progress over time • Weight Tracking: Monitor your weight changes with detailed statistics and progress visualization • Personalized Experience: Get personalized greetings and insights based on your profile COMPREHENSIVE TRACKING: • Success/Failure Tracking: Automatically marks sessions as successful or failed based on your goals • Detailed Statistics: View your current streak, longest streak, success rate, and total sessions • Weight Progress: Track weight changes with weekly averages and total progress • Export Your Data: Share your fasting history and statistics with healthcare providers BEAUTIFUL DESIGN: • Clean, intuitive interface optimized for both iPhone and iPad • Smooth animations and transitions • Dark mode support • Responsive design that adapts to your device HELPFUL RESOURCES: • Built-in Help & FAQ section with fasting tips and guidance • Educational content about intermittent fasting benefits • Best practices for successful fasting PRIVACY FIRST: • All data stored locally on your device • No account creation required • Your health data stays private and secure Perfect for beginners and experienced fasters alike, InterFasting provides everything you need to make intermittent fasting a sustainable part of your healthy lifestyle. Start your fasting journey today and discover the benefits of time-restricted eating. Download InterFasting and take control of your health journey!

Screenshots

VO2 Prime4 screens
interfasting4 screens

Verdict

The call

The clearest difference is in-app purchases: VO2 Prime at none against interfasting's 2. VO2 Prime also leads on iOS requirement (15.1 vs 18.5). interfasting's advantage is update cadence (every 5 days vs monthly). On price, ads 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. interfasting sells 2 in-app purchases, starting at $9.99 per month. VO2 Prime asks for nothing beyond the download.

UpkeepUpdate frequency

VO2 Prime ships an update monthly, interfasting every 5 days. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
VO2 Prime versus interfasting: the parameters behind the verdict, then further details
ParameterVO2 Primeinterfasting
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.1 — better18.5
Further details — not scored
Size62 MB3 MB
Age rating17+4+
DeveloperEndoMedical IncIvan Morel

In-app purchases

None

VO2 Prime

No in-app purchases

2 purchases

interfasting

Subscriptions2
  • InterFasting Pro$9.991 Month
  • InterFasting Pro (Yearly)$108.991 Year

Questions

Is VO2 Prime free?
VO2 Prime is free to download, with no in-app purchases.
Is interfasting free?
interfasting is free to download, with in-app purchases available.
Do VO2 Prime or interfasting have ads?
Neither VO2 Prime nor interfasting shows ads.
Which is updated more often, VO2 Prime or interfasting?
VO2 Prime ships an update monthly, and interfasting every 5 days. Most recently, VO2 Prime was updated on October 21, 2026 and interfasting on October 9, 2026.

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