diff --git a/Vanilla/Vanilla.xcodeproj/project.pbxproj b/Vanilla/Vanilla.xcodeproj/project.pbxproj
index 15fab84..7d91b87 100644
--- a/Vanilla/Vanilla.xcodeproj/project.pbxproj
+++ b/Vanilla/Vanilla.xcodeproj/project.pbxproj
@@ -12,6 +12,7 @@
 		282B13122C1BE91F00FB13F1 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 282B13112C1BE91F00FB13F1 /* Assets.xcassets */; };
 		282B13152C1BE91F00FB13F1 /* Base in Resources */ = {isa = PBXBuildFile; fileRef = 282B13142C1BE91F00FB13F1 /* Base */; };
 		2867CE842C1BE96E004C821F /* FormTextField in Frameworks */ = {isa = PBXBuildFile; productRef = 2867CE832C1BE96E004C821F /* FormTextField */; };
+		28EE88A42C1C8020000EBFCF /* CreditCardDetailsController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 28EE88A32C1C8020000EBFCF /* CreditCardDetailsController.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -21,6 +22,8 @@
 		282B13112C1BE91F00FB13F1 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		282B13142C1BE91F00FB13F1 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		282B13162C1BE91F00FB13F1 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		28EE88A32C1C8020000EBFCF /* CreditCardDetailsController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CreditCardDetailsController.swift; sourceTree = "<group>"; };
+		28EE88A52C1C8231000EBFCF /* Vanilla.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = Vanilla.entitlements; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -55,8 +58,10 @@
 		282B13072C1BE91E00FB13F1 /* Vanilla */ = {
 			isa = PBXGroup;
 			children = (
+				28EE88A52C1C8231000EBFCF /* Vanilla.entitlements */,
 				282B13082C1BE91E00FB13F1 /* AppDelegate.swift */,
 				282B130C2C1BE91E00FB13F1 /* ViewController.swift */,
+				28EE88A32C1C8020000EBFCF /* CreditCardDetailsController.swift */,
 				282B13112C1BE91F00FB13F1 /* Assets.xcassets */,
 				282B13132C1BE91F00FB13F1 /* LaunchScreen.storyboard */,
 				282B13162C1BE91F00FB13F1 /* Info.plist */,
@@ -144,6 +149,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				28EE88A42C1C8020000EBFCF /* CreditCardDetailsController.swift in Sources */,
 				282B130D2C1BE91E00FB13F1 /* ViewController.swift in Sources */,
 				282B13092C1BE91E00FB13F1 /* AppDelegate.swift in Sources */,
 			);
@@ -287,6 +293,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CODE_SIGN_ENTITLEMENTS = Vanilla/Vanilla.entitlements;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				CODE_SIGN_STYLE = Manual;
 				CURRENT_PROJECT_VERSION = 1;
@@ -319,6 +326,7 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CODE_SIGN_ENTITLEMENTS = Vanilla/Vanilla.entitlements;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				CODE_SIGN_STYLE = Manual;
 				CURRENT_PROJECT_VERSION = 1;
diff --git a/Vanilla/Vanilla/CreditCardDetailsController.swift b/Vanilla/Vanilla/CreditCardDetailsController.swift
new file mode 100644
index 0000000..3f0071a
--- /dev/null
+++ b/Vanilla/Vanilla/CreditCardDetailsController.swift
@@ -0,0 +1,61 @@
+import UIKit
+import FormTextField
+
+class CreditCardDetailsController: UIViewController {
+    lazy var inputValidator: InputValidator = {
+        var validation = Validation()
+        validation.maximumLength = "1234 5678 1234 5678".count
+        validation.minimumLength = "1234 5678 1234 5678".count
+        let characterSet = NSMutableCharacterSet.decimalDigit()
+        characterSet.addCharacters(in: " ")
+        validation.characterSet = characterSet as CharacterSet
+        let inputValidator = InputValidator(validation: validation)
+        return inputValidator
+    }()
+
+    let formatter = CardNumberFormatter()
+
+    lazy var creditCardNumberTextField: UITextField = {
+        let textField = UITextField(frame: .zero)
+        textField.translatesAutoresizingMaskIntoConstraints = false
+        textField.backgroundColor = .secondarySystemBackground
+        textField.textColor = .label
+        textField.autocapitalizationType = .none
+        textField.autocorrectionType = .no
+        textField.keyboardType = .numberPad
+        textField.textContentType = .creditCardNumber
+        textField.placeholder = "Credit card number"
+        textField.delegate = self
+        textField.addTarget(self, action: #selector(textFieldDidUpdate(_:)), for: .editingChanged)
+        textField.clearButtonMode = .whileEditing
+        return textField
+    }()
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        view.addSubview(creditCardNumberTextField)
+        view.backgroundColor = .systemBackground
+
+        NSLayoutConstraint.activate([
+            creditCardNumberTextField.centerYAnchor.constraint(equalTo: view.centerYAnchor),
+            creditCardNumberTextField.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 12),
+            creditCardNumberTextField.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -12),
+        ])
+    }
+
+    @objc func textFieldDidUpdate(_ textField: UITextField) {
+        let creditCardNumber = creditCardNumberTextField.text ?? ""
+        textField.text = formatter.formatString(creditCardNumber, reverse: reverse)
+        creditCardNumberTextField.backgroundColor = self.inputValidator.validateString(creditCardNumber) ? .systemMint : .secondarySystemBackground
+    }
+
+    var reverse = false
+}
+
+extension CreditCardDetailsController: UITextFieldDelegate {
+    public func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
+        reverse = string.isEmpty
+        return self.inputValidator.validateReplacementString(string, fullString: textField.text, inRange: range)
+    }
+}
+
diff --git a/Vanilla/Vanilla/Vanilla.entitlements b/Vanilla/Vanilla/Vanilla.entitlements
new file mode 100644
index 0000000..6ddec55
--- /dev/null
+++ b/Vanilla/Vanilla/Vanilla.entitlements
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.developer.authentication-services.autofill-credential-provider</key>
+	<true/>
+</dict>
+</plist>