Cryotherapy plunges have been a part of an athletes recovery process for centuries. But, now thanks to ColdTubâ„¢ it is a quick, convenient, inexpensive and bacteria-free modality. If you are looking for a Coldtub this app contains lots of product information. If you already own a Coldtub this app will serve as a remote control, allowing you to view the status of your spa, turn pumps on and off, even change and modify settings!