A Swift framework providing a customizable text field for entering and validating payment card information in iOS apps.
Caishen is an iOS framework that provides a customizable text field component for entering and validating payment card information. It handles card number formatting, expiration date validation, and CVC checks, simplifying the process of collecting secure payment details in mobile apps. The framework also supports integration with CardIO for camera-based card scanning.
iOS developers building apps that require payment card input, such as e-commerce, finance, or subscription-based applications. It's particularly useful for those seeking a native Swift alternative to PaymentKit.
Developers choose Caishen for its pure Swift implementation, extensive customization options, and seamless CardIO integration. It offers a standalone, flexible solution that reduces development time while ensuring a polished user experience for payment input.
A Payment Card UI & Validator for iOS
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Automatically validates card numbers, expiration dates, and CVC codes against known types, with support for custom card types via the CardType protocol as shown in the README's MyCardType example.
Allows adjustment of colors, fonts, separators, and animations via standard UITextField properties and dedicated attributes like cardNumberSeparator and invalidInputColor, detailed in the README's customization table.
Provides optional integration with CardIO for camera-based card scanning, including delegate methods to prefill card information, as demonstrated in the CardIO usage example with prefillCardInformation.
Offers individual text fields (NumberInputTextField, MonthInputTextField, etc.) that can be used separately for more control over input flow, as shown in the separate components example with deleteBackwardCallbacks.
The framework is built solely on UIKit, so it's not natively compatible with SwiftUI projects, requiring additional wrapper views or bridging for modern iOS development.
Relies on the third-party CardIO library for camera scanning, which might become deprecated or unsupported over time, adding maintenance overhead and potential compatibility issues.
Developers must implement protocols like CardTextFieldDelegate and set up callbacks for accessory buttons and validation, which adds complexity compared to more automated or declarative payment SDKs.
Caishen is an open-source alternative to the following products: