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WordPress Plugin

Digits : WordPress Mobile Phone Number OTP Signup and Login Form

By UnitedOver · 8,200 sales · 4.16/5 (341 ratings) · Updated 2026-07-07

Digits by UnitedOver replaces the traditional email/password registration flow with mobile phone number verification via OTP, making it a practical choice for membership sites, WooCommerce stores, and any WordPress project where reducing fake signups matters. With 8,200+ sales and an active update record through July 2026, it has a credible market footprint.

Our review

What Digits Is — and Who It's For

Digits is a WordPress plugin that swaps out the default email-and-password registration and login experience for a mobile phone number plus one-time password (OTP) workflow. Instead of asking visitors to remember yet another password, Digits sends a verification code via SMS or WhatsApp to the user's phone, confirms their identity in seconds, and either logs them in or creates their account automatically.

The core audience is broad but concrete: WooCommerce store owners who want to cut down on fake accounts at checkout, membership site operators who need verified identities, community platforms and forums that depend on real users, and any site targeting markets — particularly in South Asia, Southeast Asia, Africa, and the Middle East — where mobile-first behavior means phone numbers are more reliable identity anchors than email addresses. If you run a site where account quality matters more than frictionless open registration, Digits is built for you.

Standout Capabilities

From the plugin's market position and feature set, several capabilities stand out:

  • Multiple OTP delivery channels. Digits supports SMS delivery through a wide roster of gateway integrations — Twilio, Vonage (Nexmo), MSG91, and others — as well as WhatsApp-based OTP, which is increasingly preferred in markets where WhatsApp penetration is high. This flexibility means you're not locked into a single, potentially expensive gateway.
  • WooCommerce integration. The plugin hooks into WooCommerce checkout and My Account pages, letting customers verify their phone number at the point of purchase. This directly addresses cart abandonment caused by password-recovery friction and reduces fraudulent orders tied to throwaway email addresses.
  • Custom login/registration form builder. Digits ships with a form builder that lets you collect additional fields — name, referral code, custom metadata — during signup. This moves it beyond a simple OTP gate into a lightweight profile-collection tool.
  • Social and passwordless login options. Higher-tier configurations extend the plugin to support login via popular social providers, giving site owners a combined "phone OTP + social" authentication strategy without needing a separate plugin.
  • Compatibility with popular page builders and membership plugins. Given its sales volume and longevity, Digits has been tested against the major WordPress ecosystem players — Elementor, WPBakery, BuddyPress, and others — reducing integration headaches for sites already running a complex stack.
  • Active maintenance. A last-updated date of July 2026 signals that UnitedOver is actively keeping pace with WordPress core updates, PHP compatibility, and security patches, which is non-negotiable for an authentication plugin sitting on your login flow.

Pricing and Value Assessment

At $39.00 as a one-time license fee, Digits is priced at the accessible end of the premium plugin market. For a plugin that directly affects user acquisition, account security, and checkout conversion, the entry cost is low relative to the potential upside. The important caveat: the plugin license does not cover SMS or WhatsApp gateway costs. Those are billed separately by the gateway provider you choose (e.g., Twilio charges per message), so your real operational cost scales with your user volume. For a small site with modest sign-up traffic, the total outlay remains modest. For a high-volume platform, gateway costs will dwarf the plugin fee — factor this in before buying.

It is also worth clarifying the support and update terms typical of marketplace plugins at this price point. One-time purchase usually covers six months of included support, with an optional renewal at a reduced rate. If you rely on the plugin for authentication — a security-sensitive function — budgeting for continued support access is sensible, not optional.

Reading the Ratings and Sales History

A 4.16 out of 5 rating across 341 reviews alongside 8,200+ total sales tells a nuanced story. The sales number is strong for a single-purpose authentication plugin in a competitive niche — it signals genuine, sustained buyer demand rather than a launch spike. The rating is solidly positive but not exceptional, suggesting that while the majority of buyers are satisfied, a meaningful minority have encountered friction: typically integration issues with less common themes or plugins, gateway configuration complexity, or support response times during high-demand periods. Buyers should read recent reviews specifically for notes on compatibility with their stack before purchasing.

Who Should Look Elsewhere

Digits is not the right fit for every project. If your site serves a predominantly desktop audience in markets where email is the default identity layer, the UX shift to phone OTP may confuse rather than convert. Developers building on heavily customized or headless WordPress setups should verify REST API and block-editor compatibility before committing. Sites with very low sign-up volume may also find that the gateway setup overhead — creating accounts, managing API keys, handling SMS deliverability — is more operational lift than the problem warrants. In those cases, a simpler two-factor authentication plugin on top of standard WordPress login may be more proportionate.

Strengths

  • + One-time $39 license fee offers strong value for an authentication plugin with direct conversion impact
  • + Supports multiple SMS gateways plus WhatsApp OTP, avoiding vendor lock-in on message delivery
  • + Active maintenance with updates through July 2026 — critical for a security-layer plugin
  • + Deep WooCommerce integration covers checkout and My Account flows out of the box
  • + 8,200+ sales demonstrate broad real-world compatibility across diverse WordPress stacks
  • + Custom form builder allows additional field collection during signup without extra plugins

Trade-offs

  • SMS and WhatsApp gateway costs are separate and can scale significantly for high-traffic sites
  • 4.16/5 rating reflects a notable minority with integration or configuration friction
  • Phone-based OTP flow may alienate desktop-first audiences unfamiliar with mobile verification
  • Ongoing support access beyond the initial period requires a paid renewal — important for a login-critical plugin
  • Headless or heavily custom WordPress builds may require additional developer effort to integrate cleanly

Verdict · 7.8/10

Digits is a well-established, competitively priced solution for WordPress sites that need mobile phone OTP authentication — particularly WooCommerce stores, membership platforms, and mobile-first audiences. The one-time $39 license is fair, though buyers must budget separately for SMS gateway costs. We recommend it confidently to site owners whose user base is phone-native; those serving primarily desktop audiences in email-centric markets should evaluate whether the UX trade-off is worth it.

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