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Freemius Checkout / Buy Button

Selling with Freemius from any website takes just a few minutes to configure. Once you have your product’s plans and pricing set up within the Freemius Dashboard, simply go to the PLANS section and click the GET CHECKOUT CODE button. You’ll get a ready-to-use simple JavaScript snippet that you can embed on any website.

Here’s a simple example of the checkout code will look like for a plan that offers 3 multi-site prices:

<select id="licenses">
   <option value="1" selected="selected">Single Site License</option>
   <option value="5">5-Site License</option>
   <option value="25">25-Site License</option>
<button id="purchase">Buy Button</button>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="https://checkout.freemius.com/checkout.min.js"></script>
    var handler = FS.Checkout.configure({
        plugin_id:  '<productID>',
        plan_id:    '<planID>',
        public_key: '<productPublicKey>',
        image:      'https://your-plugin-site.com/logo-100x100.png'

    $('#purchase').on('click', function (e) {
            name     : '<productTitle>',
            licenses : $('#licenses').val(),
            // You can consume the response for after purchase logic.
            success  : function (response) {
                // alert(response.user.email);

You can find more advanced multi-plan + multi-site licenses example via this Gist.

Argument Description Type Default
plugin_id * Required product ID (whether it’s a plugin, theme, add-on, or SaaS). number
public_key * Require product public key. string
name An optional string to override the product’s title. string Defaults to the product’s title set within the Freemius dashboard.
title An optional string to override the checkout’s title when buying a new license. string Defaults to “Great selection, {{ firstName }}!”
subtitle An optional string to override the checkout’s subtitle. string Defaults to “You’re one step closer to our {{ planTitle }} features”
image An optional icon that loads at the checkout and will override the product’s icon uploaded to the Freemius Dashboard. Use a secure path to the image over HTTPS. While the checkout will remain PCI compliant, credit-card automatic prefill by the browser will not work. string Defaults to the product’s title set within the Freemius dashboard.
plan_id The ID of the plan that will load with the checkout. When selling multiple plans you can set the param when calling the open() method. number Defaults to the 1st paid plan.
licenses A multi-site licenses prices that will load immediately with the checkout. A developer-friendly param that can be used instead of the pricing_id. To specify unlimited licenses prices, use one of the following values: 0, null, or 'unlimited'. number 1.
pricing_id Use the licenses param instead. An optional ID of the exact multi-site license prices that will load once the checkout opened. number Defaults to the plan’s single-site prices ID.
billing_cycle An optional billing cycle that will be auto selected when the checkout is opened. Can be one of the following values: 'monthly', 'annual', 'lifetime'. enum 'annual'
currency One of the following 3-chars currency codes (ISO 4217): 'usd', 'eur', 'gbp'. enum 'usd'
coupon An optional coupon code to be automatically applied on the checkout immediately when opened. string
hide_coupon Set this param to true if you pre-populate a coupon and like to hide the coupon code and coupon input field from the user. boolean false
maximize_discounts Set this param to false when selling a bundle and you want the discounts to be based on the closest licenses quota and billing cycle from the child products. Unlike the default discounts calculation which is maximized by basing the discounts on the child products single-site prices. boolean true
trial When set to true, it will open the checkout in a trial mode and the trial type (free vs. paid) will be based on the plan’s configuration. This will only work if you’ve activated the Free Trial functionality in the plan configuration. If you configured the plan to support a trial that doesn’t require a payment method, you can also open the checkout in a trial mode that requires a payment method by setting the value to 'paid'. boolean or
'free' or 'paid'
cancel A callback handler that will execute once a user closes the checkout by clicking the close icon. This handler only executes when the checkout is running in a dialog mode. function
purchaseCompleted An after successful purchase/subscription completion callback handler.
Notice: When the user subscribes to a recurring billing plan, this method will execute upon a successful subscription creation. It doesn’t guarantee that the subscription’s initial payment was processed successfully as well. If you’d like to leverage this method for the in-dashboard/WP-Admin checkout, you’ll need to utilize a special filter named checkout/purchaseCompleted as in this example.
success An optional callback handler, similar to purchaseCompleted. The main difference is that this callback will only execute after the user clicks the “Got It”” button that appears in the after purchase screen as a declaration that they successfully received the after purchase email. This callback is obsolete when the checkout is running in a dashboard mode.” function
license_key An optional param to pre-populate a license key for license renewal, license extension and more. string
is_payment_method_update An optional param to load the checkout for a payment method update. When set to `true`, the license_key param must be set and associated with a non-canceled subscription. boolean false
user_email An optional string to prefill the buyer’s email address. string
user_firstname An optional string to prefill the buyer’s first name. string
user_lastname An optional string to prefill the buyer’s last name. string
affiliate_user_id An optional user ID to associate purchases generated through the checkout with their affiliate account. number

All the parameters can be preset when configuring the checkout using FS.Checkout.configure(). If you need to set different param values based on the user’s selection, you can set all the params except plugin_id and public_key when executing the handler.open() method.

To add a coupon to a URL, so your customers automatically arrive to the Freemius Checkout page with a coupon activated, all you need to do is add ?coupon=12345 to the end of the URL. 12345 should be replaced with the coupon code.

Tracking purchases with Google Analytics and Facebook

The easiest way to track purchase conversions with external analytics and conversion tracking tools like Google Analytics is by leveraging the purchaseCompleted callback.

Here is an implementation example:

  purchaseCompleted: function( response ) {
      var trial = response.purchase.trial_ends !== null,
          total = trial ? 0 : response.purchase.initial_amount.toString(),
          productName = 'Product Name',
          storeUrl = 'https://your-site.com',
          storeName = 'Store Name';

      if ( typeof fbq !== "undefined" ) {
          fbq( 'track', 'Purchase', { 
              currency: response.purchase.currency.toUpperCase(), 
              value: response.purchase.initial_amount 
          } );

      if ( typeof ga !== "undefined" ) {
          ga( 'send', 'event', 'plugin', 'purchase', productName, response.purchase.initial_amount.toString() );

          ga( 'require', 'ecommerce' );

          ga( 'ecommerce:addTransaction', {
              'id': response.purchase.id.toString(), // Transaction ID. Required.
              'affiliation': storeName,              // Affiliation or store name.
              'revenue': total,                      // Grand Total.
              'shipping': '0',                       // Shipping.
              'tax': '0'                             // Tax.
          } );

          ga( 'ecommerce:addItem', {
              'id': response.purchase.id.toString(),                // Transaction ID. Required.
              'name': productName,                                  // Product name. Required.
              'sku': response.purchase.plan_id.toString(),          // SKU/code.
              'category': 'Plugin',                                 // Category or variation.
              'price': response.purchase.initial_amount.toString(), // Unit price.
              'quantity': '1' // Quantity.
          } );

          ga( 'ecommerce:send' );

          ga( 'send', {
              hitType: 'pageview',
              page: '/purchase-completed/',
              location: storeUrl + '/purchase-completed/'
          } );

This snippet was kindly contributed by James Kemp from IconicWP 🙌

If you’d like to leverage this method for the in-dashboard/WP-Admin checkout, you’ll need to utilize a special filter named checkout/purchaseCompleted as in this example.