OTP Login with Phone

Develop by Shopify

$4.99-$15.99

/ Month

3 Days Free Trial

Fast & Seamless OTP verification Login My Phone Number Email

Phone number login

Email login

Otp verification

Seamless registration

Customizable expiration timing

Resend button functionality

Information update section

Customizable fields and labels

Otp on buy now/checkout

About OTP Login with Phone

Launched Feb 09, 2021

Built by Shopify

Address

8345 NW 66th Street, #A1374, MIAMI, FL, 33166, US

Website Support Portal Privacy policy Tutorial FAQ Document

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Description

Enable fast, secure OTP login with phone number and email for a smooth store login experience.

Extendons OTP Login replaces passwords with secure, one-time codes sent via email or phone. Customers can register and log in instantly using OTP, with customizable settings for code expiry, resend limits, and mandatory information fields. The app supports custom account fields, rule-based login controls, and displays OTP prompts on Buy Now and Checkout buttons for a smoother flow. Fully compatible with all free and paid themes,

Register & Sign In with OTP: Customers sign up/login via phone or email OTP.
Customizable OTP Settings: Set OTP expiry time & control resend button behavior.
Flexible Account Updates: Customers update info; customize field labels & text.
OTP on Checkout: Prompt OTP signup/verification on buy now and checkout buttons.
Seamlessly integrates with popular SMS providers like MSG91 and Firebase.

Pros

Allows users to register and sign in with either phone number or email
Boosts store’s registration rate and improves customer experience
Provides seamless registration and login method, substituting traditional email and password login
Enhances shopping experience with phone number sign-in
Compatible with all free and premium themes, with support available for fixing issues
Allows customization of the expiration code timing and resend button functionality
Customers can update their account information and customize field labels and text
Supports getting mandatory information such as email in the update profile section
Enables displaying OTP on buy now and checkout button for better signup facilitation

Cons

Potential dependency on the support team for compatibility issues with themes
May require users to have access to a phone or email for the OTP verification process
Might add an extra step during sign-in, potentially slowing down the process for some users

Top Helpful Reviews

Tanoak Smoke Co.

Dec 11, 2025 on Shopify

This is the best app for OTP login. Working with Extendons we were able to develop an unusual workflow that was required for our website. The team at Extendons was quick to respond and implement our unique requirements. Great team to work with would recommend them to anyone looking for an OTP app.

HOF - Furniture & More

Dec 11, 2025 on Shopify

We are using this app from couple of months, working smoothly and there was one issue recently, the support team was very quick and resolved it on priority. Happy with Service

Univera Inc.

Nov 19, 2025 on Shopify

Super helpful! Whenever I ask for customizations or anything related to configuration, their responses are incredibly clear and very fast. Setting up the mobile OTP login page took only about two days thanks to their support. Highly recommend!

Merrigo Kidz

Sep 08, 2025 on Shopify

It has some very useful features like the instant pop-up on pressing 'buy it now', and the app has customization of what you want to communicate at every state of the logging in process. It pretty much solves all our problems as we were struggling with other apps earlier. Their support has also been very prompt in resolving few issues we had.

Tradeuz

Feb 14, 2025 on Shopify

STOP using or installing. If you use this application, be prepared that your credentials from Firebase and MSG91 will be visible to the whole world. And anyone can use your authorization data and reset your balance. Our security department did it in two minutes: - to find out that 162 stores were connected through them. - 66 of them have Firebase credentials and some of them have msg91. Contact Shopify for more details.

TRAPO® Car Mat Malaysia

Dec 04, 2024 on Shopify

The app is very simple to use and the support is really helpful. Really thankful to the developers for helping us with customizations.

Baller Indonesia

Nov 05, 2024 on Shopify

We've been using Extendons on our site, and it's been a great addition. The plugin adds an extra layer of security with OTP verification, which has worked well for us by reducing the risk of spam accounts and improving user trust. When we needed some customization, the support team was responsive and helpful in making the necessary adjustments. Overall, it's a reliable tool that meets our needs, with good support for customizations.

Trapo Test 2.0

Oct 24, 2024 on Shopify

The app works like a charm. App support is amazing. They accomodated our request to only have the verification on the Sign up page. Would recommend them 100%

Jashvi Wholesale

Sep 19, 2024 on Shopify

We have been using this app from 2 years & it is hassle free, Customer support team is prompt & supportive for resolution

متجر تقييم

Aug 11, 2024 on Shopify

شكرا لكم يا أصدقاء جزاهم الله خيرا متعاونين ويساعدونك في حل مشكلاتك شكرا لك شكرا لكم والتطبيق رائع يسهل على عملاءك تسجيل الدخول الي متجرك عبر رقم الهاتف فقط

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