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OTP+ B2B SMS & Social Login

B2B Login, Phone SMS OTP login, social login & access...

by Etterno.io Inc · Launched: October 2024 · Free plan available.

4.7 (11) on Shopify Built for Shopify
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B2B Login and Access control with phone OTP login via SMS, one-tap Apple and Google social login.

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About OTP+ B2B SMS & Social Login

Passwords kill conversions. OTP+ replaces them with phone number OTP login via SMS plus one-tap Google and Apple social login. Customers sign up and log in in seconds, no passwords, no resets, no abandoned carts. Add phone OTP verification at cart and checkout to confirm real shoppers and cut fake orders, RTO and chargebacks on COD. Improved access control blocks fake signups while login logs and real-time alerts keep you updated. One-click install, mobile-first, works with every Shopify theme Enable phone number OTP login via SMS for instant customer sign-in and signup Enable one-tap Google and Apple social login to instantly grow customer signups Track every login with detailed customer logs and browser bot detection alerts Reduce fake orders, RTO and chargebacks with phone OTP verification at checkout Customize OTP login widget to match any Shopify theme with mobile-first design Show more Show less

Last verified: July 17, 2026 · Fresh

App details

Developer
Etterno.io Inc
Category
Store management
Pricing
Free plan available
Launched
October 2024
Rating
4.7 (11) on Shopify

Key features

  • B2B Login and Access control with phone OTP login via SMS, one-tap Apple and Google social login
Integrations with:

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1 plan · starts free

Free

Free

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 26 Shopify App Store reviews

Use the arrows to read individual reviews

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— Synthesia
We surveyed customers three months after switching to OTP+ and the feedback on the login experience was consistently positive. 'No password needed,' 'it's so quick.' When login becomes unremarkable it means it's working.
— SVELTA
The OTP widget adopted our colour scheme automatically. I didn't touch any CSS it just read the theme tokens and matched. For stores with strong brand identity that kind of invisible integration is genuinely valuable.
— TRENIQUE
An excellent solution for modern Shopify stores. Finding an OTP app that accommodates the latest platform limits was a challenge, but this app delivers perfectly. Highly recommended!
— Ekhasa
We measured login completion rate before and after OTP+. Before: significant customers who hit the login page abandoned rather than go through password reset. After: almost no drop-off at login.
— CHARMORA
Our COD orders were suffering from address fraud. Phone verification at checkout confirmed we're reaching a real number before the order is confirmed. Our delivery success rate improved noticeably.
— THE GLIMMER GALLERY
We serve customers across several languages and I needed the OTP widget to work correctly in our non-English locale. Support helped me configure the language settings within one support session.
— FINESSA
Good Service
— Soul Of Soil
We run a significant COD business and the RTO rate was painful. Verification at checkout confirming the phone number before order completion has meaningfully reduced the failed delivery rate.
— NOBILIS
Our female shoppers skew heavily toward iOS and the Apple one-tap login has been extremely popular. The Google login conversion is also strong. Together they cover the vast majority of our customers' preferred sign-in path.
— OPAL & ONYX
The bot detection started showing value in the first week. We had a wave of signups from similar device fingerprints. The system flagged them and the logs let me review exactly what triggered the alert.
— FASHION PERAMID
I was nervous about installing an authentication app without developer support, but the setup genuinely took about four minutes. I added the app, configured the widget, and it was live. One of the cleanest Shopify installs I've done.
— STYLE MATE
Our customer base is heavily mobile — over 80% of sessions come from phones. SMS OTP is exactly what mobile users expect and OTP+ delivers it without friction. The code arrives fast and the customer is through in seconds.
— TUCCI STORE
Cart abandonment was our biggest metric problem and we traced a significant portion of it back to the login step. After switching to OTP+ the login step became the fastest part of the checkout. Abandonment dropped within two weeks.
— Avanique
Our repeat purchase rate has gone up since installing OTP+. I attribute it directly to how frictionless re-login has become. Customers who would have checked out as guests before are now logging in because it's so easy. More logged-in customers means better retargeting for us.
— Libaas Wardrobe
The Apple login integration was crucial for a big chunk of our iOS customer base. They tap once and they're in — no typing, no SMS wait, nothing. Combined with Facebook login for other segments, we've covered the majority of our customers' preferred sign-in methods in one app.
— MODAFIT
OTP+ replaced a clunky third-party login solution we had cobbled together. The difference in how polished the login experience feels now is night and day. Customers compliment the checkout flow regularly now, which is something I never expected to hear about a login screen.
— Naura Skin Essentials
The real-time notifications for login attempts gave our team visibility we never had before. When a customer's account shows unusual activity, we know about it immediately. It's not just a login app — it's a lightweight security layer for our customer accounts.
— Musa Bros
Phone OTP login was something our customers had been asking for. We're a brand with an older demographic that genuinely struggles with password managers and forgot-password flows. SMS OTP was instantly intuitive for them. The feedback we've gotten has been overwhelmingly positive.
— products hub
I had a setup issue with our custom theme and the OTP modal wasn't rendering correctly. Support offered a call within a few hours of my message, screenshared with me, and had it fixed live. That level of responsiveness is what makes you stick with an app long-term.
— Gadget Hub

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