To keep track of the number of uses remaining by scanning the consumables of the Simeox device. Tracking your sessions is made easy with the "Simeox" application. All you have to do is bring the NFC reader of your mobile phone to the filter of the consumable of your Simeox device. Once the filter is read, the number of remaining uses is displayed. This way you can keep track of the history of each consumable scanned.