If you have a mobile phone other than a supported iPhone or Android, you can still use Perka via text message.
To check in with Perka via SMS (texting), visit a participating merchant and ask for their unique store-specific code. Text the code to (330) 400-3300 and you'll receive a reply that you're checked in.
If it's your first time checking in, you'll get a message back asking for your name. Enter your name, then let the clerk know you're checked in with Perka.
Follow any prompts to create your account with your email address. If you already have a Perka account, text "Addphone" to the Perka sms number and respond with your email when prompted. This will link your Perka email account with your phone number.