# Taking a Payment with the Finix Checkout iOS App

From the Checkout screen, you can process a **Sale** or **Authorization**. Sale is selected by default.

- **Sale**: A one-step transaction that immediately charges the buyer.
- **Authorization**: A two-step transaction that places a hold on funds, which you can later capture or void.

The Finix Checkout iOS app supports three ways to collect payment:

| Method                | Description                                                                                                     |
|-----------------------|-----------------------------------------------------------------------------------------------------------------|
| **Card Reader**       | Collect payment using a paired [Pax D135](https://docs.finix.com/low-code-no-code/mobile-apps/finix-checkout/set-up-d135) card reader. The buyer taps, swipes, or dips their card on the device. |
| **Enter Card Manually** | Type the buyer's card details directly into the app. No device required.                                         |
| **Payment Link**      | [Create a payment link and share it](https://docs.finix.com/low-code-no-code/mobile-apps/finix-checkout/payment-links) with the buyer to pay from their own device.  |

## Step 1: Enter Transaction Details

1. Tap **Checkout** in the navigation bar if you are not already on that screen.
2. Select the **Sale** or **Authorization** tab.
3. Enter the payment amount using the keypad.

4. Tap **Next**.
   - The transaction details screen displays.
5. Optionally, tap **Add Description** to add a description for the transaction.
6. Optionally, tap **Add Buyer** to associate a buyer with the transaction.
   - Search for an existing buyer or tap **+** to create a new one.
   - Tap **Add Buyer** when done.

7. Tap **Confirm and Pay**.
   - A screen displays asking how you would like to collect payment.

## Step 2: Collect Payment

Select the payment method that applies to your situation.

- Card Reader
- Enter Card Manually
- Payment Link

### Prerequisites

- The D135 is [set up and connected](https://docs.finix.com/low-code-no-code/mobile-apps/finix-checkout/set-up-d135).

### Steps

1. Tap **Use Card Reader**.
   - The app displays **Tap or Insert Card on Reader**, indicating the device is ready.
   - You can optionally connect to a different device.

2. Have the buyer tap, insert, or swipe their card on the D135.
   - A processing screen displays while the transaction is being submitted.

## Step 3: Transaction Result

After the transaction is submitted:

- **Approved**: A **Sale Approved** or **Authorization Approved** screen displays. Choose to send a receipt by email, by text, or select **No Receipt**.

- **Failed**: A **Failed Transaction** screen displays with the reason for the failure (for example, the buyer did not complete payment in time, or there was an issue with the card).

Tap **Done** to return to the Checkout screen.