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

This app helps you manage your diet and fitness by calculating your daily calorie needs, tracking your macronutrients, and offering personalized meal plans. It also includes a step counter, water tracker, and a library of workout guides to support your health goals.

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😊(762K ratings)
FreeAdsIn-App Purchases
#15in 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 app helps users achieve their weight loss goals by tracking calorie intake, nutrition, and exercise. It offers features like AI-powered meal logging, barcode scanning, and personalized diet plans to simplify the journey to a healthier lifestyle.

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

This AI-powered app helps you achieve your health and fitness goals by tracking calories, macros, and water intake. It offers a comprehensive food database, workout logging, personalized goals, and meal planning to monitor your progress.

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: Exercise App
7 Minute Workout: Exercise App
7 Minute Workout: Exercise App
Home Workout & Fitness Planner
Free

This app offers short, effective workouts designed to improve your health. It provides guided exercises with voice and video instructions, suitable for beginners and requiring no equipment. Users can also build custom routines and integrate with Apple Health.

Short and effective workoutsNo equipment neededVoice and video instructions
💪 Health & Fitness
(123K)
free with in-app purchases
5
FitCloudPro
FitCloudPro
FitCloudPro
by 欣 黄
Free

Track your daily activity, sleep patterns, and health metrics with a connected smartwatch. Receive timely notifications, set reminders, and control your phone's camera remotely. Sync your data with Apple Health for a comprehensive view of your well-being.

Standard sports data tracking (steps, calories, distance)Sleep monitoringApp notification reminders
💪 Health & Fitness
(3.6K)
free
6
JustFit: Lazy Workout & Fit
JustFit: Lazy Workout & Fit
JustFit: Lazy Workout & Fit
Female Fitness and Exercise
Free

This app offers fun, beginner-friendly workouts, including unique wall Pilates routines, designed for women. Track your progress and get personalized tips to achieve your fitness goals without needing any equipment. Make fitness enjoyable and accessible from anywhere.

Personalized workout plansWall Pilates exercisesBelly and core workouts
💪 Health & Fitness
(213K)
subscription
7
Keelo - Strength HIIT Workouts
Keelo - Strength HIIT Workouts
Keelo - Strength HIIT Workouts
Functional Fitness Training
Free

This app offers high-intensity functional fitness training combining strength and conditioning. It uses an AI algorithm to personalize your workouts, track progress, and provide instructional videos. Workouts can be done anywhere, with or without equipment.

AI-personalized workoutsStrength and conditioningFull body training
💪 Health & Fitness
(5.9K)
free with in-app purchases
8
Macro Calculator By Fittur
Macro Calculator By Fittur
Macro Calculator By Fittur
Calculate Macros Accurately
Free

This app calculates personalized macronutrient targets for fat loss, muscle gain, or weight maintenance. It uses body fat percentage for greater accuracy than traditional BMI-based calculators. Achieve your fitness goals with precise nutrition guidance.

Body fat-based macro calculationPersonalized nutrition targetsSupports fat loss, muscle gain, weight maintenance
💪 Health & Fitness
(4.1K)
free
9
Blood Oxygen | O2 Monitor app+
Blood Oxygen | O2 Monitor app+
Blood Oxygen | O2 Monitor app+
Saturation Level + Pulse Rate
Free

Track your blood oxygen saturation (SpO2) and pulse rate daily. Log readings from your oximeter, monitor your normal range, and stay informed about your health. Features include a log diary, multi-profile support, and Apple Health synchronization.

Log oxygen saturation (SpO2) and pulse rateFast and accurate pulse measurementMulti-profile support for family members
🏥 Medical
(379)
freemium
10
PrO2 Fit
PrO2 Fit
PrO2 Fit
Breathe Easier. Train Harder.
Free

This app pairs with a respiratory muscle trainer to help users measure and improve their breathing strength and performance. It guides users through resisted breathing exercises to enhance respiratory function.

Measure respiratory strengthImprove breathing performanceResisted breathing exercises
💪 Health & Fitness
(4)
free
11
Keep Trainer: Gym Workout Log
Keep Trainer: Gym Workout Log
Keep Trainer: Gym Workout Log
by Calorie Tech Ltd.
Free

This app offers a comprehensive fitness coaching experience with a vast library of exercises and expert-designed workout routines. It provides personalized training plans, video guidance, and options for all fitness levels, allowing users to achieve their health and fitness goals at home.

400+ exercises database100+ expert-designed workoutsVideo guidance from trainers
💪 Health & Fitness
(14K)
free with in-app purchases
12
Da Fit
Da Fit
Da Fit
by MO YOUNG LIMITED
Free

Track your fitness with accurate motion recording, detailed sleep analysis, and comprehensive exercise insights. This app encourages a healthy lifestyle and helps you discover more fun through connected smart devices and personal reminders.

Accurate motion recordingDetailed sleep trackingExercise analysis
💪 Health & Fitness
(209K)
ad-supported
13
Orangetheory Fitness
Orangetheory Fitness
Orangetheory Fitness
The smartest one-hour workout
Free

This app offers a science-backed, coach-inspired group workout experience. It allows users to easily book classes, track workout statistics in real-time, and manage their fitness progress. Achieve life-changing results with this streamlined fitness companion.

Book and cancel classesSearch and manage favorite studiosTrack workout stats in real time
💪 Health & Fitness
(487K)
free
14
iFIT Workouts
iFIT Workouts
iFIT Workouts
Cardio Classes, Abs, Treadmill
Free

Access over 10,000 immersive cardio and strength workouts led by expert trainers in stunning global locations. Personalized plans adapt to your fitness level and goals, whether you use equipment or just your bodyweight.

10,000+ on-demand workoutsExpert trainer-led sessionsGlobal location filming
💪 Health & Fitness
(66K)
free with in-app purchases
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

Track your daily activity, sleep patterns, and set personal fitness goals. Receive smart notifications and use helpful tools like sedentary reminders and remote camera control. All data is for personal reference and not a substitute for professional medical advice.

Activity tracking (steps, distance, calories)Sleep monitoring and analysisGoal setting and progress reports
🌟 Lifestyle
(8)
free
17
JEFIT Workout Plan Gym Tracker
JEFIT Workout Plan Gym Tracker
JEFIT Workout Plan Gym Tracker
Strength Log Gym Planner
Free

This app helps you achieve fitness goals with personalized workout plans, detailed exercise instructions, and progress tracking. Log your weight, reps, and sets, and gain insights into your training effectiveness. It supports strength tracking and syncs with Apple Health and smartwatches.

Personalized daily workout plans1,400+ exercises with HD videoWorkout logging and progress tracking
💪 Health & Fitness
(47K)
free with in-app purchases
18
Volt: Gym & Home Workout Plans
Volt: Gym & Home Workout Plans
Volt: Gym & Home Workout Plans
Fitness Training for Any Goal
Free

This app provides AI-powered, personalized workout plans that adapt weekly to your fitness goals and available equipment. It offers structured training for general fitness, sport performance, and tactical readiness, with over 3,000 exercises and HD video demonstrations.

AI-powered adaptive workout plansHome and gym training optionsSport-specific training programs
💪 Health & Fitness
(17K)
free with in-app purchases
19
Fitplan®: Gym & Home Workouts
Fitplan®: Gym & Home Workouts
Fitplan®: Gym & Home Workouts
#1 Personal Trainer App
Free

Access personalized workout plans from elite trainers, whether you're at home or in the gym. Track your progress, get step-by-step video guidance, and join a supportive community to achieve your fitness goals.

Elite trainer-led workout programsHome and gym workout optionsStep-by-step HD video instruction
💪 Health & Fitness
(11K)
free with in-app purchases
20
HIIT • Workouts & Timer
HIIT • Workouts & Timer
HIIT • Workouts & Timer
24 Hour Fitness,Tabata,Cardio
Free

This app offers short, high-intensity interval training (HIIT) workouts that can be done anywhere with no equipment. It provides scientifically proven exercises, custom timer templates, and progress tracking to help users achieve fitness results quickly.

Short, high-intensity workoutsCustomizable timer templatesStep-by-step instructions
💪 Health & Fitness
(31K)
freemium

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