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Best O2Fit Apps

222+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated May 2026

If you already know O2Fit, this is the deeper bench. 222+ o2fit apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.

Top Picks for O2Fit

O2Fit - Diet & Calorie Counter#1

O2Fit - Diet & Calorie Counter by ladan fazel

Weight, fitness & workout
Editor's Choice
💪 Health & Fitness
4.6😊(358 ratings)
Free
O2Fit - Diet & Calorie Counter screenshot 1
O2Fit - Diet & Calorie Counter screenshot 2
O2Fit - Diet & Calorie Counter screenshot 3
O2Fit - Diet & Calorie Counter screenshot 4
O2Fit - Diet & Calorie Counter screenshot 5
O2Fit - Diet & Calorie Counter screenshot 6

O2Fit is a comprehensive diet and fitness app that helps users set personalized goals, track their food intake, and monitor their exercise routines. Achieve your fitness objectives with ease using O2Fit.

What We Love

  • 👍 User-friendly and easy to navigate
  • 🎯 Comprehensive food database with accurate calorie information
  • 💪 Effective for weight loss and diet tracking
  • 🍽️ Flexible calorie-based approach without food restrictions

Room to Improve

  • 💰 Expensive subscription pricing
  • 🐢 App performance is slow
  • 🔍 Food search functionality is tedious and cumbersome
Lose It! – Calorie Counter#2

Lose It! – Calorie Counter by FitNow, Inc.

Food Tracker for Weight Loss
Strong Contender
💪 Health & Fitness
4.8😊(757K ratings)
FreeAdsIn-App Purchases
#14in Health & Fitness
Lose It! – Calorie Counter screenshot 1
Lose It! – Calorie Counter screenshot 2
Lose It! – Calorie Counter screenshot 3
Lose It! – Calorie Counter screenshot 4
Lose It! – Calorie Counter screenshot 5

This application is a powerful tool for weight loss, offering calorie counting, nutrition tracking, and intermittent fasting features to help users reach their goals. With a comprehensive food library, barcode scanner, and other useful tools, it's a convenient way to achieve a healthier lifestyle and track progress. Start your weight loss journey now!

What We Love

  • 👍 Easy to use
  • 🚀 Comprehensive food database
  • 💡 Helpful for weight loss
  • 🚀 Syncs with fitness trackers

Room to Improve

  • 🐛 Inaccurate calorie/nutrition data
  • 💰 Paywall for basic features
  • 📢 Intrusive ads and upselling
MyFitnessPal: Calorie Counter#3

MyFitnessPal: Calorie Counter by MyFitnessPal, Inc.

Food, Fitness & Weight Tracker
Worth Considering
💪 Health & Fitness
4.7😐(2.3M ratings)
FreeAdsIn-App Purchases
#1in Health & Fitness
MyFitnessPal: Calorie Counter screenshot 1
MyFitnessPal: Calorie Counter screenshot 2
MyFitnessPal: Calorie Counter screenshot 3
MyFitnessPal: Calorie Counter screenshot 4
MyFitnessPal: Calorie Counter screenshot 5
MyFitnessPal: Calorie Counter screenshot 6

Track your daily food intake, exercise, and weight goals with a user-friendly calorie counting app. Stay on top of your macros and diet while monitoring your progress towards a healthier lifestyle. Start your wellness journey today!

What We Love

  • 💪 Effective for weight loss/healthy eating
  • 🔍 Extensive food database
  • 📊 Helpful tracking and progress features
  • 🤝 Social features and community support

Room to Improve

  • 🐛 Buggy and glitchy app performance
  • 💰 Aggressive push for premium subscription
  • 📋 Inaccurate food data and calculations

More O2Fit apps to explore

4
7 Minute Workout: Health Coach
7 Minute Workout: Health Coach
7 Minute Workout: Health Coach
Home Workout & Fitness Planner
Free

Get a personalized home fitness coach with a 7 Minute Workout app. Achieve your fitness goals with quick and effective exercise routines tailored to your needs. Download now and start your fitness journey today!

💪 Health & Fitness
(123K)
5
FitCloudPro
FitCloudPro
FitCloudPro
by 欣 黄
Free

Stay on top of your health with FitCloudPro! Track your exercise, sleep, receive notifications, set reminders, monitor hydration, control camera, and more with this smart watch app. Join FitCloudPro now for a healthier lifestyle.

💪 Health & Fitness
(3.6K)
6
JustFit: Lazy Workout & Fit
JustFit: Lazy Workout & Fit
JustFit: Lazy Workout & Fit
Female Fitness and Exercise
Free

Get in shape effortlessly with our innovative workout app: discover personalized routines, track your progress, and stay motivated on your fitness journey. Start your transformation today!

💪 Health & Fitness
(9.8K)
7
Keelo - Strength HIIT Workouts
Keelo - Strength HIIT Workouts
Keelo - Strength HIIT Workouts
Functional Fitness Training
Free

Get real, measurable results with our high-intensity functional fitness app. As featured by top health and fitness publications, it's your go-to for strength and conditioning workouts. Start your fitness journey today!

💪 Health & Fitness
(5.9K)
8
Macro Calculator By Fittur
Macro Calculator By Fittur
Macro Calculator By Fittur
Calculate Macros Accurately
Free

Calculate accurate macros for fat loss, muscle building, or weight maintenance with this advanced macro calculator. Ditch outdated tracking methods and try the world's most precise macro tracker - download now to transform your nutrition goals!

💪 Health & Fitness
(4.1K)
9
Blood Oxygen | O2 Monitor app+
Blood Oxygen | O2 Monitor app+
Blood Oxygen | O2 Monitor app+
Saturation Level + Pulse Rate
Free

Monitor your oxygen saturation levels and pulse rate daily with this essential tracker app. Keep track of your health, set normal levels, sync data to Apple Health, and enjoy features like multi-profile support and daily reminders. Stay informed and stay healthy!

🏥 Medical
(379)
10
PrO2 Fit
PrO2 Fit
PrO2 Fit
Breathe Easier. Train Harder.
Free

This companion app helps users breathe easier and train harder with a device that measures and increases respiratory strength through resisted breathing exercises. Download the app to get started and take control of your respiratory health, but be sure to consult a physician before use if you have a medical condition.

💪 Health & Fitness
(4)
11
Keep Trainer: Gym Workout Log
Keep Trainer: Gym Workout Log
Keep Trainer: Gym Workout Log
by Calorie Tech Ltd.
Free
💪 Health & Fitness
(14K)
12
Da Fit
Da Fit
Da Fit
by MO YOUNG LIMITED
Free

Get accurate motion tracking, detailed sleep analysis, and exercise insights with this app. Connect to multiple devices, monitor your health, and stay motivated to lead an active lifestyle. Download now for a better, healthier you.

💪 Health & Fitness
(205K)
13
Orangetheory Fitness
Orangetheory Fitness
Orangetheory Fitness
The smartest one-hour workout
Free

Experience an innovative fitness solution with a science-backed group workout designed for transformative results and a vibrant life. Easily book classes, track stats in real time, manage workouts, and sync data with your favorite devices. Join now for a life-changing fitness journey!

💪 Health & Fitness
(487K)
14
iFIT Workouts
iFIT Workouts
iFIT Workouts
Cardio Classes, Abs, Treadmill
Free

Get personalized workout plans, live virtual training sessions, and yoga classes with real trainers through this innovative fitness app. Elevate your at-home workout experience and achieve your fitness goals effectively. Start your journey to a healthier lifestyle today!

💪 Health & Fitness
(66K)
15
H2O Fitness Collaborative
H2O Fitness Collaborative
H2O Fitness Collaborative
by H2O Fitness Collaborative LLC,P.A.
Free
💪 Health & Fitness
(0)
16
XOfit
XOfit
XOfit
by Shenzhen United Power Technology Co., Ltd.
Free

This application helps users track their physical activity, sleep patterns, and receive reminders to stay healthy and connected. It provides personalized insights and suggestions to improve overall well-being, but emphasizes that its data should not be used for medical decisions without consulting a professional doctor.

🌟 Lifestyle
(8)
17
JEFIT Workout Plan Gym Tracker
JEFIT Workout Plan Gym Tracker
JEFIT Workout Plan Gym Tracker
Strength Log Gym Planner
Free
💪 Health & Fitness
(47K)
18
Volt: Gym & Home Workout Plans
Volt: Gym & Home Workout Plans
Volt: Gym & Home Workout Plans
Fitness Training for Any Goal
Free

Get fit and stay motivated with our all-in-one fitness app. Track your workouts, set goals, and join challenges to reach your fitness milestones. Download now and start your fitness journey today!

💪 Health & Fitness
(17K)
19
Fitplan®: Gym & Home Workouts
Fitplan®: Gym & Home Workouts
Fitplan®: Gym & Home Workouts
#1 Personal Trainer App
Free

Get personalized workout plans and fitness guidance from top trainers with detailed exercise routines, progress tracking, and nutrition tips. Achieve your fitness goals with ease - download now and start your fitness journey today!

💪 Health & Fitness
(11K)
20
HIIT • Workouts & Timer
HIIT • Workouts & Timer
HIIT • Workouts & Timer
24 Hour Fitness,Tabata,Cardio
Free

An intense HIIT workouts app designed to boost fitness levels with quick, effective routines. Enhance your endurance, strength, and overall health with our customizable high-intensity training programs. Start transforming your fitness today!

💪 Health & Fitness
(31K)

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