Best O2Fit Apps

250+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated August 2026

If you already know PrO2 Fit, this is the deeper bench. 250+ o2fit apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.

Compare top O2Fit Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PrO2 FitPrO2 FitFree3.5★ (4)NoNoJul 2026
2Lose It! – Calorie CounterLose It! – Calorie CounterFree4.8★ (772K)YesYesAug 2026
37 Minute Workout: Exercise App7 Minute Workout: Exercise AppFree4.8★ (123K)YesYesAug 2026
4H2O Fitness CollaborativeH2O Fitness CollaborativeFreeNoNoJun 2026
5O2 Fitness AlbirO2 Fitness AlbirFreeNoNoMay 2026
6Orangetheory FitnessOrangetheory FitnessFree4.9★ (491K)NoNoAug 2026
7O₂MaxO₂MaxFreeNoNoMay 2026
8Google Fit: Activity TrackerGoogle Fit: Activity TrackerFree4.2★ (2.2K)NoNoAug 2026

Top Picks for O2Fit

PrO2 Fit#1

PrO2 Fit by PrO2HEALTH, INC.

Breathe Easier. Train Harder.
Editor's Choice
💪 Health & Fitness
3.5(4 ratings)
Free
PrO2 Fit screenshot 1
PrO2 Fit screenshot 2
PrO2 Fit screenshot 3
PrO2 Fit screenshot 4
PrO2 Fit screenshot 5

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.

Lose It! – Calorie Counter#2

Lose It! – Calorie Counter by FitNow

Food Tracker for Weight Loss
Strong Contender
💪 Health & Fitness
4.8😊(772K ratings)
FreeAdsIn-App Purchases
#22in 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
Lose It! – Calorie Counter screenshot 6

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
7 Minute Workout: Exercise App#3

7 Minute Workout: Exercise App by Fast Builder Limited

Lazy Workout for Weight Loss
Worth Considering
💪 Health & Fitness
4.8😊(123K ratings)
FreeAdsIn-App Purchases
7 Minute Workout: Exercise App screenshot 1
7 Minute Workout: Exercise App screenshot 2
7 Minute Workout: Exercise App screenshot 3
7 Minute Workout: Exercise App screenshot 4
7 Minute Workout: Exercise App screenshot 5
7 Minute Workout: Exercise App screenshot 6

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.

What We Love

  • 🚀 Effective workouts
  • 👍 Easy to follow instructions
  • 💪 Helps build strength and fitness
  • 🕰️ Quick 7-minute sessions

Room to Improve

  • 🐛 Occasional app freezing and crashes
  • 🔍 Limited variety of pre-designed workouts
  • 🔖 Difficulty creating custom workouts

More O2Fit apps to explore

4
H2O Fitness Collaborative
H2O Fitness Collaborative
H2O Fitness Collaborative
by H2O Fitness Collaborative LLC,P.A.
Free
💪 Health & Fitness
(0)
5
O2 Fitness Albir
O2 Fitness Albir
O2 Fitness Albir
by O2 Fitness Albir SL
Free
💪 Health & Fitness
(0)
6
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
(491K)
free
7
O₂Max
O₂Max
O₂Max
by Trinity Strength LLC
Free
💪 Health & Fitness
(0)
8
Google Fit: Activity Tracker
Google Fit: Activity Tracker
Google Fit: Activity Tracker
Track your health and fitness
Free

This app helps you achieve a healthier, more active lifestyle by tracking your physical activity and providing personalized goals. It awards points for moderate and intense exercise, aligning with recommendations from health organizations to improve heart health, sleep, and mental wellbeing.

Track workouts (runs, walks, bike rides)Monitor Heart Points and steps goalsManually add missed activities
💪 Health & Fitness
(2.2K)
free
9
Fitness App (ABC Trainerize)
Fitness App (ABC Trainerize)
Fitness App (ABC Trainerize)
by Trainerize.com
Free

This app connects fitness professionals with their clients, offering tools for online coaching, personalized training plans, nutrition guidance, and progress tracking. It aims to enhance client engagement and help individuals achieve their health goals through a comprehensive digital experience.

Client engagement toolsOnline training plan deliveryNutrition and habit coaching
💪 Health & Fitness
(66K)
freemium
10
O2 Black
O2 Black
O2 Black
by FitPhilia Solutions Private Limited
Free
💪 Health & Fitness
(0)
11
Fit2Health-O
Fit2Health-O
Fit2Health-O
by Marc Picco
Free
💪 Health & Fitness
(0)
12
Vita Fit and PT
Vita Fit and PT
Vita Fit and PT
by V2 FITNESS & PHYSICAL THERAPY, LLC
Free
💪 Health & Fitness
(0)
13
Shokz
Shokz
Shokz
Be Open
Free

Enhance your audio experience with customizable sound modes and a powerful equalizer. Effortlessly manage multiple Bluetooth devices, update firmware, and control playback. Access detailed information about your headphones and the brand.

Customizable sound modesEqualizer settingsMultipoint Bluetooth pairing
🎵 Music
(25K)
free with in-app purchases
14
Fat2Fit Personalized Meal Plan
Fat2Fit Personalized Meal Plan
Fat2Fit Personalized Meal Plan
Our Healthy Meal Plans for You
Free
🍔 Food & Drink
(0)
15
OxiTone
OxiTone
OxiTone
A closure focus
Free

This app allows users to monitor vital physiological data, including blood oxygen levels and pulse rate. It also tracks oxygen usage and includes a health assessment questionnaire. Data can be input manually or synced with compatible medical devices.

Track blood oxygen level (SpO2)Monitor pulse rateRecord activity levels
🏥 Medical
(1)
free
16
WhatsApp Messenger
WhatsApp Messenger
WhatsApp Messenger
Simple. Reliable. Private.
Free

Connect with friends and family globally through private messaging and high-quality calls. Share moments, documents, and stay in touch across devices, even on slow connections. Your conversations are secured with end-to-end encryption.

End-to-end encrypted messagingHigh-quality voice and video callsGroup chats and calls
🌐 Social Networking
(18M)
free with in-app purchases
17
O's NLF
O's NLF
O's NLF
Orryson Next Level Fitness
Free
💪 Health & Fitness
(0)
18
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
(11)
free
19
A2 Fit
A2 Fit
A2 Fit
by Arbox LTD
Free
💪 Health & Fitness
(0)
20
AIRO Controller
AIRO Controller
AIRO Controller
Control your AIRO System.
Free

Control your AIRO System for guided or self-guided workouts. Adjust oxygen concentration, monitor workout duration, and follow protocol instructions with built-in timers and cool-down periods.

Wireless AIRO System controlProtocol-guided workoutsSelf-guided workout options
💪 Health & Fitness
(1)
free

FAQ about O2Fit

What are the best o2fit apps for iPhone?
PrO2 Fit tops our o2fit apps ranking as of August 2026, with a 3.5-star average from 4 App Store ratings, and it's free to download.
Yes — 20 of the top o2fit apps we rank are free to download, including PrO2 Fit and Lose It! – Calorie Counter.
PrO2 Fit has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ o2fit apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
PrO2 Fit is the companion app for the PrO2Fit Inspiratory Muscle Trainer (IMT). It helps users measure and increase their respiratory strength and performance through guided resisted breathing exercises.
PrO2 Fit is compatible with iPhone, iPad, and iPod devices. It is designed to work on Apple's mobile operating system.

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