Why PIN Login is Better than SMS OTP

Many apps use SMS OTP for login. But for a busy library or reading room in India, SMS OTP is not always the best choice. Here is why a simple password and PIN workflow can be better for daily operations.

OTPs cost money and fail

Every time you send an OTP, you have to pay for the SMS. And sometimes, the SMS does not arrive. Mobile networks can be slow.

When a student is standing at the front desk waiting to check in, they should not have to wait 30 seconds for an SMS. If the SMS fails, the queue gets longer and the desk gets crowded.

PINs are fast and free

With ShelfSpace, a user signs in once with their password. After that, they just type a 6-digit PIN to unlock the app.

There is no waiting for an SMS. The login is instant and works even if the internet is slow. This makes managing seats, attendance, and front-desk workflows much faster for the library team.

Simple and secure

A PIN is easy to remember. If a user forgets it, the library owner or admin can reset it from the dashboard. It keeps library data secure without slowing down daily work.