How to use Castiron's Tap to Pay App on Android

With Castiron’s Tap to Pay, you can easily take payments from NFC-enabled credit and debit cards and a wide range of digital wallets. Whether at a market, event, or your store, the Castiron Tap to Pay app lets you accept payments anytime, anywhere, on your Android device.

What is Tap to Pay?

Tap to Pay is a technology that allows users to make payments by tapping or hovering their contactless card or NFC (Near Field Communication)-enabled device over a payment terminal. It’s a fast, secure, and convenient way to handle transactions.

How does Tap to Pay work?

Tap to Pay uses Near Field Communication (NFC) technology, a wireless system that enables data transfer between devices that are close to each other. The customer’s payment details are securely stored on the NFC chip and sent to the merchant’s terminal for approval. This method is quick, secure, and doesn't need physical contact between the card or smartphone and the payment terminal.

Getting started is easy

• System Requirements:
  • Check Compatibility: Ensure your Android device is running Android 9 or higher.
  • Enable NFC: Go to your device’s Settings > Connections > NFC and Contactless Payments, then toggle on NFC.
• Download the Castiron app from the Google Play Store, sign in, and activate Tap to Pay on your Android device. You'll be all set to accept payments in no time!
• Download here on the Google Play Store: https://play.google.com/store/apps/details?id=com.castiron.seller.app&pcampaignid=web_share

Setting Up Tap to Pay on your device

• After clicking "Install" to download the app, you'll log in with your Castiron Email and Password.

• Go through any prompts that come up, click next, and you'll be taken to the Home page:

• You're ready to take payments! Click "Charge a Card" to begin.

  • You'll be taken to the "Create a Payment" screen.
  • Here you can add the amount to charge, a description for the sale (optional), and a customer (optional).
  • You can either select from your customer contact list in Castiron, or add a new one.
  • Then click "Next" at the bottom.

• The next screen will show the total payment with the transaction fees added.

  • When the next screen pops up, and you see "Hold Here to Pay," you can ask your customer to hold their card or device close to your device to "tap" to pay.

• You're done!

• Having trouble or need assistance? Email us anytime at help@shopcastiron.com

Safe & Secure

When you use Tap to Pay on Android, your device's security features make sure that all transactions are safe and private. Your customers' payment details are not stored on the device, so their information stays completely private and secure. During a transaction, all screenshot and screen recording functions are temporarily disabled to protect sensitive information.

Having issues?

If you encounter issues such as "Reader Failed to Connect" or "Developer Options Not Supported," make sure that Developer options are turned off in your device settings.

To Disable Developer Mode:

1. Go to Settings > System > Developer Options.
2. Turn off Developer Options.
3. Restart the Castiron app and your device.

FAQ

• Where is my payment being deposited?
  • All payments you accept with Tap to Pay on Android are processed by Stripe and then deposited to the account or card you've set up with them.
• What device can I use?
  • Tap to Pay on Android requires Android 9 or higher.
• What payment types can I accept?
  • With Tap to Pay on Android, you can accept any form of contactless payment, including other digital wallet and payment services, and contactless debit and credit cards.
• Will using Tap to Pay affect the battery life of my device?
  • No. Tap to Pay on iPhone won't have a noticeable impact on battery life.
• What if a contactless payment card is not being read?
  • The performance of contactless cards can vary based on the card design, such as the card material or the location of the antenna. As a result, some cards connect more easily than others. Try the following to ensure a successful card read:
    • First, ask the customer to hold their contactless payment card directly on the device with the chip on the left side and the longer side of the card lined up with the edge of the tap area for several seconds.
    • If the card still doesn't read, ask the customer to slide the card to center the chip directly over the notch on the device.
    • If the contactless card remains unread without any feedback from the interface, the card might have a damaged antenna or might not work with contactless payments.