Comparison

Oxygen Advantage® vs Second Brain Grappling

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

Head to head
About

Oxygen Advantage®

This app offers a personalized daily breathing plan with guided exercises, meditations, and mindfulness coaching to improve physical and mental well-being. It focuses on functional nasal breathing to enhance performance, reduce anxiety, and promote better sleep. Suitable for all ages and fitness levels, it helps build healthy breathing habits.

Highlights
  • Customizable daily breathing plan
  • Guided meditations and breathwork
  • Instructional videos library
  • Breathing pacer with adjustable speed
  • Progress tracking with charts and graphs
  • Reminders and custom notifications
  • Buteyko Breathing Method for kids
Features
Read full description

The Oxygen Advantage® app is designed to be your virtual breathing instructor. Control your breathing with a fully customizable daily breathing plan that combines key breathing exercises, guided meditations, paced breathing, and mindfulness coaching to deliver a tailored approach to improve your physical and mental well-being. Use the OA™ App to learn functional nasal breathing as a foundation for health & performance: ● Breathe easy, even during exercise ● Achieve deep, restful sleep ● Reduce anxiety and panic attacks ● Feel happier, healthier and stronger ● Recover faster after training ● Stop gassing out before the finish line ● Boost oxygen delivery and enhance performance ● Calm your mind for laser focus ● Push past your personal best ● Open your airways for efficient breathing ● Strengthen your breathing muscles ● Strengthen your core ● Stimulate the vagus nerve Stay focused, energized, and calm with a variety of breathing exercises suitable for beginners and intermediate users, regardless of age, fitness or state of health. These exercises include: ● Breathing light ● Paced and slow breathing ● Diaphragm activation ● Vagus nerve stimulation ● Light and strong breath holds ● Voluntary hyperventilation ● Physical movement ● Using the OA™ breathing accessories OA™ APP FEATURES ● Choose your challenge and measure your BOLT score to get a personalized daily breathing plan. Each day, you will receive scientifically tailored exercises based on your specific health requirements. ● Enjoy a variety of meditations and breathwork exercises with guided support from Patrick McKeown. ● Improve your breathing skills with our instructional videos. The app has a library of over 100 videos covering various topics to help you optimize your breathing. ● Follow the breathing pacer and adjust the speed to create the perfect breathing exercise for you. ● Choose the perfect sound from our music library. Guided sessions that feature impactful sounds make it easier for you to find your rhythm and relax. ● Track your progress with detailed charts and graphs and build healthy habits. With our progress tracking feature, you will find it easy to set goals, track your progress regularly and measure how much time you invested since the very beginning. ● Easily manage your daily routines. Stay on top of your day-to-day tasks with our reminders feature that lets you set multiple alarms per day. Our custom notifications will remind you to breathe correctly. ● Share accomplishments with friends through social media and encourage them to take the journey with you. ● Develop positive breathing habits early with the Buteyko Breathing Method program for kids. With regular practice, the OA™ App will help you achieve healthier and more productive days with less stress and more focus. The app comes with a day-by-day plan of 30 minutes per day: meaning it’s perfect for people with busy schedules. Download the Oxygen Advantage® free breathing app and discover why breathing is the foundation of health and performance. *Disclaimer: If you have a serious medical condition, DO speak to your doctor or a certified breathing instructor before you begin using the app.

About

Second Brain Grappling

Read full description

Your grappling game is bigger than what you can keep in your head. Build a second brain for it. Second Brain Grappling is an AI-powered ecosystem built to help grapplers capture, connect, understand, and develop their game. Build a visual knowledge graph of your positions, techniques, transitions, submissions, escapes, and concepts. Connect everything together and create a living representation of how your game actually works. MAP YOUR GAME Turn your grappling knowledge into an interconnected graph. Start small and keep building as your game develops. FIND THE GAPS See how complete different areas of your game are, discover weak spots, and understand where to focus next. CAPTURE WHAT YOU LEARN Add techniques and concepts as you learn them. The AI-powered ecosystem helps transform your thoughts, training notes, and discoveries into structured knowledge. ANALYZE YOUR ROLLS Use video analysis to break down your grappling and turn what happens on the mats into insights you can actually use. PREPARE WITH BATTLE CARDS Turn your knowledge into actionable Battle Cards built around positions, situations, and problems in your game. BUILT AROUND YOU Your athlete profile, knowledge, strengths, gaps, and preferences work together to create an experience that becomes more personal as your Second Brain grows. Whether you're trying to remember what you learned yesterday or map years of grappling knowledge, Second Brain Grappling gives your game somewhere to live. Build it. Connect it. Evolve it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Oxygen Advantage®4 screens
Second Brain Grappling4 screens

Verdict

The call

The clearest difference is in-app purchases: Oxygen Advantage® at none against Second Brain Grappling's 4. Oxygen Advantage® also leads on iOS requirement (11.0 vs 15.0). 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. Second Brain Grappling sells 4 in-app purchases, starting at $9.99 per month. Oxygen Advantage® asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Oxygen Advantage® versus Second Brain Grappling: the parameters behind the verdict, then further details
ParameterOxygen Advantage®Second Brain Grappling
PriceFreeFree
Rating4.3 (106 ratings) — better—
Positive reviews74.6% of reviews—
Number of ratings106 — better—
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size75 MB95 MB
Age rating17+4+
DeveloperOxygen Research Institute Ltd.Maximilian Boscha

In-app purchases

None

Oxygen Advantage®

No in-app purchases

4 purchases

Second Brain Grappling

Subscriptions1
  • Second Brain Grappling Monthly Pro7 Days trial$9.991 Month
One-time3
  • 500 Brain Credits$3.99
  • 1,500 Brain Credits$14.99
  • 5,000 Brain Credits$41.99

Questions

Is Oxygen Advantage® free?
Oxygen Advantage® is free to download, with no in-app purchases.
Is Second Brain Grappling free?
Second Brain Grappling is free to download, with in-app purchases available.
Do Oxygen Advantage® or Second Brain Grappling have ads?
Neither Oxygen Advantage® nor Second Brain Grappling shows ads.

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