Leadfox vs MailOptin
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Leadfox v2.2.4 · checked 23 Oct 2026 Free Visit Details | MailOptin v1.2.78.7 · checked 23 Oct 2026 Free + paid · ★ 4.8/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 200+ | 10,000+ |
| Last updated | January 20, 2026 | October 13, 2026 |
| Editions | Leadfox for WordPress | MailOptin Lite · MailOptin Premium ($) |
| Pros | Adds the Leadfox tracking script without editing theme files; Pushes new subscribers and customers into a chosen list; Admin button to sync existing subscribers and customers | Popups, opt-in forms, notification bars and slide-ins; Blog posts sent as email newsletters; Connections to many email and CRM services; Shortcodes and a block for placing opt-in forms |
| Cons | Requires a Leadfox account with an API key and secret; Loads the external tracking script on every front-end page; Sends contact details to a third-party service | Premium themes and some features need the paid version; Many outbound connections to third-party services; Large codebase with many shortcodes and email templates |
| Mentioned in our posts | — | 1 |
| More features | ||
| Other features | Leadfox tracking script added to every page, New subscriber and customer accounts sent to a Leadfox list, Manual sync of existing subscribers and customers, Choose the Leadfox list to receive contacts, Lifecycle event fired on the order-received page | Popups, opt-in forms and slide-ins, Opt-in form block, Email newsletter when a post is published, Email campaign builder, Scheduled email campaign sends, Premium optin themes ($) |
| Integrations | ||
| — | Mailchimp, ConvertKit, MailerLite, Brevo | |
| CRM | — | HubSpot, Zoho CRM |
| Marketing | Leadfox | Klaviyo |
| E-commerce | — | WooCommerce |
| Plugins | — | WPForms, Contact Form 7, Gravity Forms |
| Requires WordPress | 3.7 | 6.4 |
| Requires PHP | — | 7.4 |
| Tested up to | 6.8.3 | 7.1 |
| Phones home | No | No |
| External services | — | auth.mailoptin.io, challenges.cloudflare.com, www.google.com, vimeo.com, api.beehiiv.com, api.moosend.com, api.mailerlite.com, a.klaviyo.com, api.sendfox.com, clientapi.benchmarkemail.com, api.sendgrid.com, api.brevo.com, api.getresponse.com, api.convertkit.com, app.bentonow.com, api.sender.net, api.omnisend.com, api.encharge.io, api.egoiapp.com, api.ap3api.com, app.icontact.com, api.flodesk.com, api.sendpulse.com, api.getgist.com, api.mailgun.net, emailoctopus.com, api.elasticemail.com, api.getwemail.io, connect.mailerlite.com, api.ontraport.com, opencollective.com |
| Blocks | — | 2 |
| Shortcodes | — | 60 |