# 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](/low-code-no-code/mobile-apps/finix-checkout-ios/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](/low-code-no-code/mobile-apps/finix-checkout-ios/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.


Finix Checkout iOS app Checkout screen with keypad for entering a payment amount
1. Tap **Next**.
  - The transaction details screen displays.
2. Optionally, tap **Add Description** to add a description for the transaction.
3. 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.


Finix Checkout iOS app transaction details screen showing the Add Buyer option
Finix Checkout iOS app buyer selection list when adding a buyer to a transaction
Finix Checkout iOS app new buyer form
Finix Checkout iOS app transaction details screen with a buyer added
1. Tap **Confirm and Pay**.
  - A screen displays asking how you would like to collect payment.


Finix Checkout iOS app payment method selection screen showing Card Reader, Enter Card Manually, and Payment Link options
## Step 2: Collect Payment

Select the payment method that applies to your situation.

Card Reader
### Prerequisites

- The D135 is [set up and connected](/low-code-no-code/mobile-apps/finix-checkout-ios/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.


Finix Checkout iOS app showing Tap or Insert Card on Reader prompt
1. Have the buyer tap, insert, or swipe their card on the D135.
  - A processing screen displays while the transaction is being submitted.


Finix Checkout iOS app processing screen while the D135 transaction is being submitted
Enter Card Manually
### Steps

1. Tap **Enter Card Manually**.
2. Enter the buyer's card details.
3. Tap **Charge $X.XX**.
  - A processing screen displays while the transaction is being submitted.


Payment Link
### Steps

1. Tap **Create a Payment Link**.
2. If prompted, select a merchant from the list.
  - The **Create Payment Link** form displays.
3. Fill out the form fields. For field descriptions, see [Payment Link Form Fields](/low-code-no-code/mobile-apps/finix-checkout-ios/payment-links#payment-link-form-fields).
4. Tap **Create** to generate the link.
5. Share the link with your buyer. For sharing options, see [Payment Links](/low-code-no-code/mobile-apps/finix-checkout-ios/payment-links).


## 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**.


Finix Checkout iOS app Sale Approved screen with receipt options
- **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).


Finix Checkout iOS app Failed Transaction screen showing the reason for failure
Tap **Done** to return to the Checkout screen.