Firebase Phone OTP Authentication Kit — Expo 54 + React Native (Firebase v23 Ready)

A clean, production-ready OTP auth starter using Firebase v23. Includes source code, video demo, Android APK & iOS build — ship auth fast.

Kickstart your next mobile app with Firebase Phone (OTP) Authentication, implemented for Expo 54 and the Firebase v23 modular SDK.
Most tutorials are outdated or broken with the new Expo & Firebase versions — this kit gives you a battle-tested, production-ready starter that you can run, customize, and ship.

✅ What’s Included

• 📂 Full Source Code — clean, modular, and well-commented
• 🎥 Video Demo — walkthrough of the OTP flow
• 📱 Android APK (ready to install)
• 🧩 Setup instructions & troubleshooting tips

🚀 Features

• Phone number authentication with OTP verification
• Resend OTP flow with timer
• Input validation & error handling
• Works on both Android & iOS
• Built using the Firebase modular SDK v23
• Optimized for Expo 54

👨‍💻 Who is this for?

• React Native & Expo developers who want a ready-made Firebase OTP solution
• Founders & startups who need to ship authentication fast
• Freelancers who want to speed up client projects

🎁 Why this kit?

• Save days of setup & debugging
• No deprecated Firebase APIs — works with v23 out of the box
• Tested & working on Expo 54
• Easy to customize & extend (Firestore, social logins, etc.)

📬 Support & License

• Includes 30 days of basic setup support.
• License: personal + commercial app usage allowed (resale of template prohibited).