Multibyte CAPTCHA login and Mail only register for WordPress Plugin Directory
Multibyte CAPTCHA login and Mail only register is a WordPress Plugin Directory app by Katsushi Kawamori.
AppRanks data: Multibyte CAPTCHA login and Mail only register ranks #0 in Captcha on WordPress Plugin Directory, placing it in the top 1% of that category.
AppRanks verdict
Generated from live marketplace data — refreshed daily
Multibyte CAPTCHA login and Mail only register is a newly-listed WordPress app with a limited review volume. It is listed in the Captcha category on WordPress Plugin Directory, which AppRanks treats as the canonical taxonomy node for ranking and competitor comparison. no published reviews yet means feature claims are unverified by the wider merchant base. Without a published review base, the only fit-signal available is the developer's own documentation plus the marketplace's listing-quality audit (linked below). Paid-only pricing means evaluating fit on the marketplace listing or via the developer's documentation before installing. AppRanks tracks rating, review count, pricing tier, and category position daily — the figures on this page reflect the most recent scrape from the canonical WordPress Plugin Directory listing.
Pros
- +Published by Katsushi Kawamori — established developer track record
Cons
- −No public reviews yet — fit and reliability are unverified
Looking to switch from Multibyte CAPTCHA login and Mail only register?
See Multibyte CAPTCHA login and Mail only register's alternatives ranked by audit score, rating, and review velocity.
How Multibyte CAPTCHA login and Mail only register works
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Login form with Multibyte CAPTCHA
Anti-Bot measures with original CAPTCHA.
WordPress : wp-login.php
WordPress : wp-login.php?action=register
WordPress : wp-login.php?action=lostpassword
Register
Register only email address.
Can check the terms of use agreement for user register.
Anti-Bot measures with original CAPTCHA.
WordPress : wp-login.php?action=register
shortcode : [umorregister]
Filter for shortcode form /** ================================================== * Filter for message. * */ add_filter( 'umor_register_success_msg', function(){ return 'Message for register success.'; }, 10, 1 ); add_filter( 'umor_login_success_login_msg', function(){ return 'Message for login success.'; }, 10, 1 ); add_filter( 'umor_register_error', function(){ return 'Message for register error.'; }, 10, 1 ); add_filter( 'umor_register_nomail', function(){ return 'Message for unentered mail.'; }, 10, 1 ); add_filter( 'umor_register_noterm', function(){ return 'Message for unentered term of use.'; }, 10, 1 ); add_filter( 'umor_register_form_label', function(){ return 'Message for form label.'; }, 10, 1 ); add_filter( 'umor_register_term_of_use', function(){ return 'Message for term of use.'; }, 10, 1 ); add_filter( 'umor_not_register_message', function(){ return 'Message for not register.'; }, 10, 1 );
/** ================================================== * Filter for login form message. * */ add_filter( 'umor_login_message', function( $message, $text ) { $message = '<p class="myclass">'; $message .= $text; $message .= '</p>'; return $message; }, 10, 2 );
/** ================================================== * Filter for Term of use URL. * */ add_filter( 'umor_register_term_of_use_url', function( $term_of_use_url ) { if ( 'ja' === get_locale() ) { $term_of_use_url = 'https://test.com/ja/'; } return $term_of_use_url; }, 10, 1 );
/** ================================================== * Filter for input text size. * */ add_filter( 'umor_register_input_size', function(){ return 17; }, 10, 1 );
/** ================================================== * Filter for class name. * */ add_filter( 'umor_register_notice_class_name', function(){ return 'mynotice'; }, 10, 1 ); add_filter( 'umor_register_form_class_name', function(){ return 'myform'; }, 10, 1 ); add_filter( 'umor_register_label_class_name', function(){ return 'mylabel'; }, 10, 1 ); add_filter( 'umor_register_input_class_name', function(){ return 'myinput'; }, 10, 1 ); add_filter( 'umor_register_check_form_class_name', function(){ return 'mycheckform'; }, 10, 1 ); add_filter( 'umor_register_check_class_name', function(){ return 'mycheck'; }, 10, 1 ); add_filter( 'umor_register_captcha_input_class_name', function(){ return 'mycaptcha_input'; }, 10, 1 ); add_filter( 'umor_register_submit_class_name', function(){ return 'mysubmit'; }, 10, 1 );
Category rankings
As of Jul 16, 2026- Captcha#0of 134Top 1%
- Register#0of 39Top 1%
- Users#0of 64Top 1%
- Login#278of 607Top 46%
- Email#357of 718Top 50%
See 90-day rank history for each category
Track daily rank changes, category shifts, and position volatility.
Competitors & alternatives
Multibyte CAPTCHA login and Mail only register doesn't have curated competitor matchups yet. Other tracked captcha apps on WordPress:
Frequently asked questions
What is Multibyte CAPTCHA login and Mail only register?
Multibyte CAPTCHA login and Mail only register is an app for WordPress. It is published on WordPress Plugin Directory and tracked by AppRanks, and AppRanks has been tracking its public marketplace data on the refresh cadence published in our methodology. It is listed under the Captcha category on AppRanks, where you can see its current category position, review-velocity trend, and how it compares against the top alternatives in the same space. Developed by Katsushi Kawamori.
Who uses Multibyte CAPTCHA login and Mail only register?
Currently around 30 active stores have installed Multibyte CAPTCHA login and Mail only register. Its review base is still building, which usually maps to early-stage merchants and stores piloting a new workflow. It is part of the Captcha category on WordPress.