WHOOP Performance Optimization 4+


    • Free

iPhone Screenshots


WHOOP is a wearable that tracks sleep, strain, recovery, stress, and health biometrics 24/7, providing you with personalized coaching based on your goals to help unlock your best performance. WHOOP is screenless, so all of your data lives in the WHOOP app — for a distraction-free focus on your health. The WHOOP app requires a WHOOP wearable.

WHOOP does more than track your activity — it translates your data into clear next steps. WHOOP captures your biometrics 24/7 to calibrate specifically to your body’s unique physiology, then recommending everything from when to go to bed to what behaviors to adopt to help you reach your goals.

Here's how it works:

Sleep: Every night, WHOOP calculates your sleep performance by measuring the sleep you got
compared to the sleep your body needs. You'll wake up to a sleep score from 0 to 100%. Sleep Planner lets you know when you should go to bed to optimize your performance the following day. Now, with the release of WHOOP 4.0, Sleep Planner can also wake you when you've set an exact time, once you've reached your sleep goal, or when you're fully recovered using a quiet, vibrating haptic alarm.

Strain: WHOOP does more than just track your activity – it measures how much physical and mental stress you put on yourself throughout your day to calculate a daily Strain score ranging from 0 to 21. WHOOP measures both your cardiovascular and muscular load, even quantifying the impact of your strength training, to give you the most comprehensive view of the demands you put on your body. Every day, Strain Target will recommend your optimal target exertion range based on your Recovery score to help you maximize your gains without sacrificing your Recovery.

Stress: WHOOP gives you daily insight about your stress, and science-backed techniques to help manage it. Get a real-time stress score from 0-3, and based on your score, choose a breathwork session to either increase your alertness for performance, or increase relaxation in a stressful moment. See your stress trends over time to identify triggers.

Recovery: WHOOP lets you know how ready you are to perform by measuring your heart-rate variability, resting heart rate, sleep, and respiratory rate. You'll get a daily Recovery score on a scale of 0 to 100%. When you're in the green, you're ready for strain, when you're in the yellow or red, you may want to evaluate your training program.

Behaviors: Track the impact of over 140 daily habits and behaviors, like alcohol intake, medication, stress, and more, to better understand how these various behaviors help or hurt you.

WHOOP Coach: Ask questions about your health & fitness and get highly personalized, specific-to-you answers on demand. Using your unique biometric data, the latest in performance science, and OpenAI's technology, WHOOP Coach generates responses on everything from training plans to why you’re feeling tired.

What else you can do in the WHOOP app:

• Dig into the details: See a breakdown of your activities by heart rate zone, and even see trends across Sleep, Strain, and Recovery up to 6 months at a time to adjust your behaviors, training, plans and more
• Join a team: Stay motivated and accountable by joining a team. Chat directly with your teammates in the app, or as a coach, see how your team's training is going
• Apple Health: WHOOP integrates with Apple's Health app to sync activities and personalize your experience
• Get help: Membership Services is available to answer your questions directly from the app

WHOOP provides products and services designed for general fitness and wellness purposes. WHOOP products and services are not medical devices, not intended to treat or diagnose any disease, and should not be used as a substitute for professional medical advice, diagnosis or treatment. All content available through WHOOP products and services is for general informational purposes only.

What’s New

Version 4.6.249

Various bug fixes and performance improvements

Ratings and Reviews

4.7 out of 5
9.9K Ratings

9.9K Ratings

sgranlund ,

Great device. App could use few changes

I’m not an athlete. I’m a middle aged guy who needs to lose weight and get healthier. After exhaustive research of health and fitness devices and guides I decided to ge the whoop. I love the band and the metrics and data it provides, however, I would love to see some of the data presented in a way that is geared towards general fitness and wellness. I’m not an athlete and 99.9% of the app is geared towards sports and athletics. The data is the same it’s how it’s presented. I often feel bad becuase I’m not running 5 miles a day or engaged In powerlifting and that’s what the app pushes. I would like to see an option when you activate and pair the band which way you want the data and metrics presented. I would choose more Health and wellness oriented. Am easy Star would be letting users select and add activities. The band noticed I started an activity and asks me to log it but all the activities are sports related. That’s not the activities I’m doing so I never get to log any activity. The developers have an amazing product and good app they need to not omit a large percentage of people buying and lying for the subscription. Oh and I LOVE the AI coach. Awesome 👏

efeagler ,

Hits and Misses!

I've been using Whoop for a year and don't think I'll renew my membership. Let's start with the Hits: good software and app that is both intuitive and easy to use. Whoop does a good job of simplifying the concepts of output (strain) and recovery to guide your effort on a day to day basis. It also enables you to determine impact of specific activities, food, supplements etc on your recovery (albeit you are tied to what Whoop deems important vs being able to create your own categories...a big miss to tailoring the experience to what is important to individuals vs what Whoop thinks you should track).

Misses: 1/ the sensor is most effective in static situations (riding a bike) vs dynamic movements that hinder the sensor from accurate readings. The oblong optical shape is suboptimal and is easily disrupted during dynamic (arm movements) exercises. I've tried wrist and arm straps and the arm band and have the same issue. The sensor is finicky and I haven't found optional placement while working out. Ave workout HR is typically 5-10 bpm lower than other sensors. 2/ Also i haven't seen any correlation between recovery and quality sleep. I understand autonomic system but their recovery need to also account for quality sleeping not simoly HRV, resting HR and breathing rate. I've had 95% recovery and been very tired due to poor sleep. 3/ Walled garden... Can't share data with other apps / systems. 4/ no ability to customize categories for tracking impact.

Final3 ,

Great stuff, feel odd without it now.

The data that this product provides is simply invaluable for anyone who really wants to fine tune their athletic performance. It’ll make you more conscious of everything you do and how different things you do effect your life. If you know how to read the data properly (which admittedly takes some time and research) and use it to your advantage you’ll make huge strides in your athletic performance. It won’t be overnight and it doesn’t make the work that you have to put in ‘easier’, but it assures you that you are taking the right steps towards achieving your goals and can tell you when you’re overworking YOUR body. The personalization is one of the best features of this product, for sure. It’s helped me get my diet even better, my sleep has become more important to me, I’ve realized that it’s okay to take break days sometimes, and I’ve realized that there is a certain type of lifestyle I need to live to truly achieve my goals. Thank you for the great product. It’s not for everyone but it’s the golden ticket for many.

App Privacy

The developer, WHOOP, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data
  • Sensitive Info
  • Diagnostics
  • Other Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


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