UI App



Any exercise.

Ultimateinstability on the go, wherever you are.


The Ultimateinstability app allows you to complement workouts with Aquabags, Aquaballs and our Hydrovest. And every exercise is demonstrated with a 3D model.

Not only does it contain 180+ animated exercises – previously hosted on our Online Training Center – it also provides you with countless other training exercises. Every imaginable exercise can be found here, from olympic lifts, traditional lifts, functional training, core and many more.

Next to that the app provides you with an online UI-community where professionals gather, discuss and share their ideas. Joined by our UI Master Trainers that also share their knowledge and ideas on training and implementing UI tools and concepts, you’ve got yourself one platform te become Ultimateinstability.


Everything in one app.

The app provides you with additional information on how to set-up products and use them to get the most out of your workout.

Combine this with 2000+ 3D animated exercises which you can use to create your own workouts and programs, our UI Master Trainers to guide you, special webinars on specific themes, Q&A and more. The recipe for success is yours to take, everywhere you go.


Train and progress.

The app comes with pre-built stand-alone workout programs with the Aquabags, Aquaballs and our Hydrovest.

No matter your entry level, there are exercise programs specifically designed for you. Next to that the app features workout program’s using various training materials combined with UI Equipment on any level to help you integrate UI into your total practice.

“It is not the most intellectual or the strongest of species that survives; but the species that survives is the one that is able to adapt to and adjust best to the changing environment in which it finds itself”

Get 3 months of free access to the UI-app

Get 3 months of free access to the Ultimateinstability app by creating your account and joining the UI Tribe! If you want to continue using the app after this trial period, it only cost you € 9.95 per month.

IMPORTANT NOTE: Before you get access to this application, you have to create your personal account for the Ultimateinstability app (This account is completely independent of the account you used on our website). Once you created your account you will be able to use the application on your desktop and on your phone by downloading the app in the Apple store or Play store.

Register now!


Pay secured with