Contact person: Business Client

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Location: Muktagacha, Bangladesh

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I want a lightweight Android app that can sit quietly in the background, detect any incoming SMS that contains a one-time password, and do it even when the device carries two active SIM cards. The app should automatically identify which SIM the message arrived on, extract the OTP code, and pass both the code and the corresponding mobile number to a small PHP service.

Here is the flow I have in mind:
1. Android side
• Listen for SMS on dual-SIM devices.
• Parse and capture a numeric OTP (4–8 digits) with no user input.
• Call a REST endpoint and push: mobile number, OTP, and timestamp.

2. PHP side
• Expose a secure endpoint to receive the POST from the app.
• Write each record into a MySQL table (schema: id, msisdn, otp, received_at).
• Return a simple JSON response so the app knows the save succeeded.

3. Hand-off package
• Full Android Studio project with source code and build instructions.
• PHP files and a .sql file to create the table.
• Brief README covering required permissions (READ_SMS, RECEIVE_SMS), dual-SIM handling approach, and how to deploy the backend on a typical LAMP stack.

A functional prototype that I can install, test on a dual-SIM phone, and drop onto my existing PHP/MySQL server will be the acceptance criterion." (client-provided description)