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Crack the OTP Code: Easy SMS Reading Techniques for Android Developers

Photo by Vilnis Husko

In today’s mobile-first world, seamless user experiences are crucial, especially regarding authentication. One common method is using One-Time Passwords (OTPs) sent via SMS. But how can you read these SMS messages and extract the OTP effortlessly in your Android app?

In this blog, we’ll dive into various methods to read SMS in Android using Kotlin and show you how to implement them step-by-step.

Why Read SMS for OTP Verification?

Reading SMS messages allows you to streamline the login process by automatically retrieving the OTP sent to users. This enhances user experience by reducing manual input errors and speeding up authentication.

Photo by Onur Binay on Unsplash

Method 1: Using the SMS Retriever API

The SMS Retriever API is a powerful tool provided by Google that allows you to receive SMS messages without needing SMS permissions. Let’s get started!

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