How to Use Tap to Pay on Square in the Sparkforge Mobile App

Tap to Pay on Square turns a supported iPhone into a contactless payment terminal inside the Sparkforge mobile app. No reader, no dongle — the customer taps their card or wallet on the back of the phone.

What Tap to Pay on Square does

It accepts in-person contactless payments through Square inside the Sparkforge iPhone POS. It runs alongside other Sparkforge payment options like Cards on File, Manual Card Entry, and Square Readers, so you can pick the right method for each transaction.

Why use it

• No extra hardware — iPhone is the terminal.
• Accepts Apple Pay, Google Pay, and contactless credit/debit cards.
• Built into Sparkforge POS and the mobile app.
• Fits mobile service businesses, pop-ups, and events.
• Standard Square processing fees apply — Sparkforge adds none.

Set up Tap to Pay

Step 1: Connect Square

1. In the Sparkforge web app, open Payments > Integrations.
2. Connect your Square account.
3. Pick an active Square location in Live Mode.

Step 2: Update the mobile app

1. Open the Sparkforge mobile app on a supported iPhone.
2. Make sure you’re on v3.98 or higher.
3. Switch to the sub-account that owns the Square connection.

Step 3: Start a sale

1. Tap POS.
2. Tap Start a Sale.
3. Add items via the keypad or catalog.
4. Optionally link a contact.
5. Apply taxes or discounts.

Step 4: Take payment

1. Tap Payment Instruments.
2. Choose Square Payments.
3. Choose Tap to Pay on iPhone.
4. Have the customer tap a card or mobile wallet on the iPhone.

On success, the app shows a confirmation and offers receipt options.

Supported devices and prerequisites

• iPhone XS or newer running iOS 16.4+.
• Sparkforge mobile app v3.98 or higher.
• Active Square account with processing enabled.
• Active Square location connected to your Sparkforge sub-account.
• Whitelabelled mobile apps must request the v3.98 update through Support.

Tap to Pay is iOS-only at this time. Android support is not yet available.