# Petnow SDK Documentation - [Petnow SDK Documentation](/petify/docs): Welcome to Petnow SDK Documentation - Pet Biometric Recognition Solution - [Petnow SDK Overview](/petify/docs/overview): Introduction to Petnow SDK structure and core features. - [Petify Console](/petify/docs/petify-console): The Petify admin console for issuing API keys and SDK distribution credentials and managing usage. - iOS SDK - [iOS SDK Introduction](/petify/docs/ios/intro): An introduction to the technical requirements and features of the Petnow iOS SDK. - [Getting Started](/petify/docs/ios/getting-started): Guide to installing and initially configuring the Petnow iOS SDK. - [UI Module Overview](/petify/docs/ios/overview): A description of the structure and core components of the PetnowUI module. - [Basic Usage](/petify/docs/ios/basic-usage): A step-by-step guide to integrating CameraView into your app and capturing biometric data. - [UI Customization](/petify/docs/ios/customization): How to customize the CameraView UI to match your app's design. - [Sound Guide](/petify/docs/ios/sound): Playing pet attention-grabbing sounds using SoundPlayer. - Android SDK - [Android SDK Introduction](/petify/docs/android/intro): Introduction to the technical requirements and features of the Petnow Android SDK. - [Getting Started](/petify/docs/android/getting-started): Guide to installing and performing initial setup of the Petnow Android SDK. - [UI Module Overview](/petify/docs/android/overview): An explanation of the structure and core components of the Petnow Android UI module. - [Basic Usage](/petify/docs/android/basic-usage): How to integrate the camera UI with CameraView and CameraController. - [Fully Custom UI](/petify/docs/android/custom-ui): How to build a 100% custom camera UI with CameraController and your own SurfaceView. - [UI Customization](/petify/docs/android/customization): How to customize the CameraView guide UI and tracking display. - [Sound Guide](/petify/docs/android/sound): Sound playback that draws a pet's attention using CameraController's playSound. - [Fragment Approach (Legacy)](/petify/docs/android/fragment): The existing PetnowCameraFragment hosting approach and the 1.4.0 migration guide. - React Native SDK - [React Native SDK Introduction](/petify/docs/react-native/intro): Introduces the structure and technical requirements of the Petnow React Native camera UI package. - [Getting Started](/petify/docs/react-native/getting-started): Installation and initial setup guide for the Petnow React Native camera UI package. - [Basic Usage](/petify/docs/react-native/basic-usage): A step-by-step guide to integrating the camera UI with the usePetnowCamera hook and CameraView. - [Customization](/petify/docs/react-native/customization): How to layer your own RN UI on top of CameraView to build guide, button, and result screens. - [Sound Guide](/petify/docs/react-native/sound): Play attention sounds with PetnowSound to draw a pet's attention. - Web Integration - [Web Integration Introduction](/petify/docs/web-integration/intro): Introduces Web Integration, which provides pet biometric recognition through a Petnow-hosted web capture page — no app install or SDK integration required. - [Getting Started](/petify/docs/web-integration/getting-started): How to start with Web Integration — from console setup to issuing your first capture link and reading the result. - [Link Integration](/petify/docs/web-integration/link-integration): How to issue and manage capture links in the Petify Console, and how to read the results of link-created sessions. - [Server Integration](/petify/docs/web-integration/server-integration): The Server Integration API for issuing capture sessions from your server and receiving trusted results. - [Redirect URLs & Result Delivery](/petify/docs/web-integration/redirect-urls): The allowed Redirect URL rules, and the parameters delivered on the post-capture redirect. - Server API - [Server API Overview](/petify/docs/server-api/overview): Learn how to use the Petnow Server API and authentication methods. - [Pet Management API](/petify/docs/server-api/pet-management): Create, read, update, and delete pet profiles using the Petnow API. - [Biometric Upload](/petify/docs/server-api/biometric): Upload fingerprint (nose) and appearance images using the Petnow API. - [Registration/Verification/Identification](/petify/docs/server-api/identification): Pet fingerprint registration, verification (1:1), and identification (1:N) API guide. - [Error Codes](/petify/docs/server-api/error-codes): Petnow Server API error codes and solutions guide. - Changelog - [Latest Version](/petify/docs/changelog): Latest version changes for the SDK - [iOS Changelog](/petify/docs/changelog/ios): Per-version changes for the iOS SDK - [Android Changelog](/petify/docs/changelog/android): Per-version changes for the Android SDK - Migration - [SDK v1.3 → v1.4 Migration](/petify/docs/migration/sdk-v1.3-to-v1.4): A change-by-change guide to upgrading an existing v1.3.x app to v1.4.0. - [SDK v1.2 → v1.4 Migration](/petify/docs/migration/sdk-v1.2-to-v1.4): Upgrade a v1.2.x integration directly to v1.4 — no need to pass through v1.3. - [API v1 to v2 Migration](/petify/docs/migration/api-v1-to-v2): Guide for migrating from Petnow API v1 to v2. - [Troubleshooting](/petify/docs/troubleshooting): Common issues and solutions when using Petnow SDK