On the box for the Striiv Band, it states that this device is compatible with Windows XP & newer, but with an additional accessory required. Where is this additional accessory? I looked on your website, and I can find nothing under the devices page. I only have a computer and you do not have a computer app listed on your page. Either fix the faulty advertising or make a compatible app. I am highly upset that I cannot get needed information from my new device.