Introducing Our Biggest App Update Ever

We are proud to announce a major revision of our app platform, the Exxentric App – replacing both the kMeter App & the Flywheel Training App and introducing a new workouts feature, an enhanced dashboard, subscription plans to match large client bases and much more. CEO Fredrik Correa takes you through the updates and one of his favorite metrics.

Two Apps in One: The Exxentric App

The new Exxentric App includes features from both previous apps – Flywheel Training App and kMeter App, and also more updates, without leaving any functionalities behind. Our all-in-one improved app allows you to:

  • Customize your own workouts:  Browse through our selection of workouts same as in our old Flywheel Training app, allowing for data tracking in real-time (previous kMeter App).
  • Cloud database: Use the Exxentric app on your mobile device, to easily record your training from any flywheel training device equipped with the kMeter. All training data is stored in the cloud and can be accessed through multiple devices.
  • Feedback system: The Exxentric App is supported by kMeter, a scientifically validated wireless feedback system for flywheel training, included in many Exxentric devices. It features training metrics of a set, such as average power and concentric peak power, among others.
  • Coaching: Coaches can access their athletes training data and register training sets for them, using a single account.
  • Group training: Train with multiple users in a single session.
  • Easy monitoring: With the Exxentric app on your mobile device, you have an improved group training interface for enhanced performance of your group training.

Zoom in on our new features: Workouts, Training Dashboard, Wishlist, and more!

Introducing Workouts: Train with Flywheel Training Experts

Tailored for your training needs and featuring flywheel training experts, allowing users to browse video workouts, either in pre-made categories or by a list with optional filtering. Each workout has an overview of the structure, duration, necessary equipment, training focus, experience level, and intensity. Users can also play the workouts in the app or airplay them on their TV. There will be a number of workouts accessible in the free plan, but to get full access to all workouts, the Premium subscription is required.

Dashboard feature: making it easy to get information at a glance. Acting as a new home screen, showcasing your training progression, including the number of sets & reps, power, and accumulated score in weekly and monthly views. It also provides quick access to your favorite workouts and an overview of suggested features for the app.

Wishlist feature: The place to share your ideas as we keep improving the Exxentric App. All your suggestions will be considered for the following updates.

SCORE feature: Easily monitor, guide, and compare your training metrics with our advanced scoring system. Read more below:

What is the Exxentric App SCORE?

What if you could boil down every rep, set, exercise, and even session into a number? This number would be representing force, power, and volume of work done so when it goes up for a specific exercise or session you know you are improving. This is exactly what we have done with our newly improved SCORE!

  • Use SCORE to monitor your performance in specific exercises or during sessions or track progression over time.
  • Use SCORE to guide you in how to improve your training and which variables to focus on to maximize results. 
  • Use SCORE to compare different exercises and how they contribute to your program. 

Metrics and data are great but it is also easy to get a bit lost in there and just keep on tracking things. If it is done in a completely automated way we can accept it not being 100% useful because we at least don’t invest time into it.

However, to be really effective it also needs to be valid and useful so we can use the information to draw conclusions from it and help us move forward. 

Our Exxentric kMeter App was designed for the coaches and trainers, i.e. professionals who in many cases also had professional clients where training is a part of their day. The App provides a lot of data like the range of motion, peak power, average power, force, velocity, energy, and so on. All of these are accepted in this field and are useful in different ways. Over the years I’ve been in this field, I’ve been asked by people ranging from home users to amateur athletes and physios some sort of variation of this question: “if I would only focus on one metric, which one should I pick?”. This has been tricky to answer but I drew two conclusions from it:

  1. Many want to use data but need it to be simplified and boiled down to a single or a few key metrics. 
  2. There is interest in tracking progression but progression can be different things. Are you training for power, strength, or just conditioning? 

At Exxentric we put our heads together and also got hold of a mathematician that competes in powerlifting and really understands how load, effort, and intensity are different things and the complications when being molded together in one metric. 

After some theoretical work, we had a framework that we could test, refine and then finally implement in our app. We call it the SCORE and it works like this: 

We have three different dimensions in your training that we already track and provide data for: 

  • FORCE: It is basically the tension in the band when you pull, where a grinding, heavy, slow rep would be the maximal tension possible. 
  • POWER: This is force x velocity so here we also have a speed component. If either force or velocity is close to zero (= very low load/tension or very low speed) power also ends up being low. Jumping high or sprinting fast is about POWER. 
  • ENERGY: This is the amount of work you have done. You can increase the load or amount of reps to increase energy but they are also connected. Going easier might allow you to do way more work in total. For example, lifting close to max and you would gas out pretty fast but at 70% you can go on for multiple reps and sets and in total be more work.

As you can see these aren’t isolated from each other. For example, increasing the load will provide higher force but power will probably go down. You might also get a reduced volume with a heavier load. Our SCORE lets all of these three factors contribute equally. The formula is also designed so you get more improvement of the SCORE to improve the “weakest” factor and get less back for improving the strongest one. So adding 10% more on the factor contributing the least will improve the SCORE more than improving 10% on the already dominating factor. 

For instance : You are doing 30 reps of squats with a really small flywheel. 

Lots of work, decent power but very low force. In this example you would benefit a lot from increasing the load (inertia) a bit while doing more reps doesn’t do anything for your strength or power development. The SCORE after adding some inertia would go up more than if you just did more reps. So the SCORE is not only telling you how you are doing but also how you are improving. In addition, it creates a tool to play around, find good ways for you to load with a balanced force, power and work output. 

The SCORE isn’t normalized which means that a squat for example is much more force, maybe power but also more work since you are shifting bigger inertias back and forth will give a much higher SCORE than a biceps curl could ever do. This way you can also use the SCORE to balance your sessions and also see where in the session you actually put your work. To get bang for your buck in training, sticking with exercises using a lot of muscle mass is beneficial both time-wise but also to improve overall strength. If you spend too much time on isolation exercises, it won’t be as effective and your SCORE progression will be lower. 

Examples how to use the SCORE function in your training program

  • Use it to check progression in a specific exercise. Check the SCORE progression for exercise X. If it is going up over time you are doing well. Your strength, power and work capacity have increased!
  • Monitor your progression in a program. If your total SCORE for a specific workout is going up, you are improving all factors needed, strength, power and work capacity. 
  • Curious about how different exercises compare in terms of work and strength needed? Check out their SCORE or browse your workouts in results to see how much each exercise contributed to your total SCORE. Spend time where it counts!
  • Who is training the hardest? Compare your total SCORE for a program with your friend or teammate? Are you doing more work, training with more power, or producing more force? SCORE will tell you. 
  • How can you improve your training? Play around with inertia, intensity and volume. If the SCORE improves from one set to another you did something good. Go in that direction!


So, check out our enhanced Exxentric App and let it guide you to new heights! 

Happy DOMS!

Fredrik Correa, M.D., CEO

Follow @fredrik_correa 





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