Viscosity can be purchased from our online store using a credit card or PayPal or via our Kagi store.

Online Store

Viscosity can be purchased online via credit card or PayPal from our Store page. All major credit cards are accepted. The online store uses the PayPal gateway, however it is not necessary to have (or create) a PayPal account to use it (please see below). License details are emailed out immediately after purchase.

Kagi Store

Alternatively we have a Kagi store which accepts all major credit cards, wire transfers, check/money orders, and cash. Please note that Kagi purchases must be processed manually, so please allow 24 to 48 hours for your license details to arrive.

Using The Store Without Making a PayPal Account

While our online Store uses PayPal as the payment gateway, it is not necessary or required to have (or make) a PayPal account to complete a purchase. A credit card can be used directly. To do this, simply select the "Don't have a PayPal account? Pay with your debit or credit card as a PayPal guest" option when redirected to PayPal's payment page.

Please note that if you don't see the above option, it may be necessary to ensure you are completely logged out of PayPal (if you have logged in previously). To do this, visit the PayPal site directly and log out, and/or clear your web browser's cookies. Alternatively you can simply use a different web browser to make the purchase.