The Yoyo-powered app is available on iOS and Android.
To register you need a valid email address It's completely up to you whether you use your personal or professional email address. You will then be asked to verify your phone number and link a payment card to your app. And that's pretty much it.
[YOYO APP ONLY]
To add a retailer to Yoyo Wallet, tap on Places in the navigation bar at the bottom of your screen. If you use Yoyo at university or at your workplace, tap on Add my university / Add my workplace and type in the name of your university / workplace. If you want to use Yoyo on the high street, simply scroll through the list of high street retailers that use Yoyo and tap on the heart next to the retailer you want to add to your app.