OTP Login with Phone vs Singleton | Verify Customersfor Shopify (2026)
Both OTP Login with Phone and Singleton | Verify Customers have perfect 5/5 ratings, however, they serve drastically different purposes. OTP Login with Phone focuses on streamlining the login process with secure, passwordless authentication using one-time passwords sent via SMS or email. It's geared towards enhancing user experience and security during account creation and login. Features like customizable OTP settings, flexible account updates, and integration with SMS providers highlight its strength in providing a frictionless and secure login process. Singleton | Verify Customers, on the other hand, is designed for merchants who need strict control over who can access their store's content and make purchases. Its core function is customer verification, allowing merchants to approve or decline customer access, hide prices and 'add to cart' buttons from unapproved users, and customize registration forms. This makes it suitable for businesses selling to a closed group or requiring pre-approval before purchase. The app prioritizes control and exclusivity over login convenience.
At a Glance
OTP Login with Phone
39 reviews
Singleton | Verify Customers
78 reviews
Detailed Overview
OTP Login with Phone
Enable fast, secure OTP login with phone number and email for a smooth store login experience.
Key Features
- 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.
Singleton | Verify Customers
Verify all registered customers and allow or disallow them to see prices and "add to cart" buttons
Key Features
- Approve/decline selected customers one by one, or based on customers tags
- Create your own responsive registration form, with custom fields
- Hide prices and "add to cart" buttons for not approved customers
- Hide store content for not approved customers and redirect them to login page
- Send email to store admin automatically, after new customer is registered
Feature Comparison
| Rating | 5/5 | 5/5 |
Rating OTP Login with Phone5/5 Singleton | Verify Customers5/5 | ||
| Reviews | 39 | 78 |
Reviews OTP Login with Phone39 Singleton | Verify Customers78 | ||
| Core Functionality | Streamlined OTP Login | Customer Verification & Access Control |
Core Functionality OTP Login with PhoneStreamlined OTP Login Singleton | Verify CustomersCustomer Verification & Access Control | ||
| Key Features | OTP via SMS/Email, Customizable Settings | Customer Approval/Decline, Content Restriction |
Key Features OTP Login with PhoneOTP via SMS/Email, Customizable Settings Singleton | Verify CustomersCustomer Approval/Decline, Content Restriction | ||
| Target Merchant | Businesses prioritizing easy & secure logins | Businesses requiring strict customer control |
Target Merchant OTP Login with PhoneBusinesses prioritizing easy & secure logins Singleton | Verify CustomersBusinesses requiring strict customer control | ||
| Value Proposition | Enhanced user experience & account security | Control over who sees prices and adds items to cart |
Value Proposition OTP Login with PhoneEnhanced user experience & account security Singleton | Verify CustomersControl over who sees prices and adds items to cart | ||
| Integration | MSG91 and Firebase | Email notifications to admin |
Integration OTP Login with PhoneMSG91 and Firebase Singleton | Verify CustomersEmail notifications to admin | ||
| Customization | Custom Account Fields, OTP prompts on Buy Now | Custom registration form with unlimited fields |
Customization OTP Login with PhoneCustom Account Fields, OTP prompts on Buy Now Singleton | Verify CustomersCustom registration form with unlimited fields | ||
Our Verdict
If you aim to simplify and secure the login process for all customers while enhancing user experience, OTP Login with Phone is the superior choice. Its strengths lie in quick, secure logins and customizable OTP settings, appealing to a wider audience.
However, if your business requires controlled access, pre-approval for customers, or exclusive pricing for a select group, Singleton | Verify Customers is the more appropriate solution. It offers the necessary tools to filter and validate customers, granting or denying access to key features of your store. The apps serve entirely different needs, making the 'best' choice dependent on specific business requirements.
Common Questions
Which app is easier to implement?
OTP Login with Phone likely offers a simpler setup process, focusing primarily on login flow customization. Singleton requires more configuration to define approval workflows and content restrictions.
Which app is better for stores selling age-restricted products?
Singleton | Verify Customers would be better suited for this, as it allows you to verify customer age through custom fields and restrict access for those who don't meet the requirements. OTP Login with Phone does not offer direct age verification features.
Can OTP Login with Phone restrict access to specific product categories?
No, OTP Login with Phone focuses solely on authentication and doesn't offer features for restricting access to specific parts of the store based on login status.
Which app provides better customer support options?
Based on the provided information, it's impossible to determine which app offers better customer support. More information about their support channels and response times would be needed.
Which app is better for B2B stores?
Singleton | Verify Customers is generally better suited for B2B stores as it allows you to approve/decline customers based on tags, create registration forms with custom fields like company name, and restrict access/pricing to approved business clients.
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