Viscosity is free to use for the first 30 days. After this period it is necessary to purchase a license to continue using Viscosity.

Purchasing Viscosity

Viscosity can be purchased using a variety of payment methods from our online store. The online store will automatically apply volume discounts. An email will be sent after purchase containing license information that can be entered into Viscosity to fully activate it.

Different license types are also available depending on your needs. Please see License Types for more information.

Payment Methods

Viscosity can be purchased online via Credit Card, Apple Pay, or PayPal from our Store page. All major credit cards are accepted.

Visa, MasterCard and Amex cards are directly accepted. Discover cards are processed via PayPal (however it is not necessary to create a PayPal account). Apple Pay is available when purchasing using Safari on an Apple Pay enabled macOS or iOS device.

Upgrades and Extensions to Existing Licenses

Platform upgrades and extensions to existing licenses are available through the Upgrade section of the store. Please see License Upgrades and Volume Extensions for more information.

Available Discounts

Volume Discounts: Significant discounts are available for volume purchases. When using the online store simply adjust the quantity to see an instant volume discount. Volume discounts through the online store start at 5 seats, with the discount level increasing as the quantity goes up.

Educational Pricing: Discounted educational pricing is available for eligible educational institutions, as well as discounts for students and staff. Please see Educational Pricing for educational institution pricing, or Student and Staff Educational Discount if you are a student or staff member making a personal purchase.

Not For Profit Pricing: Sadly, we do not offer additional discounts to non-profit or charity organisations. While there are many worthy organisations out there, regretfully we cannot offer discounts beyond our volume discounts. Organisations are encouraged to make use of our volume pricing as well as check whether they may be eligible for our educational pricing.

Quotes and Invoices

If a formal quote is required, one can be generated from the Quotation page. Like the online store, this page will automatically apply volume discounts.

A receipt will automatically be sent via email after purchase. If a formal invoice is required as well, one can be downloaded from the View Invoice page.

Purchase Orders

Sadly, we can't accept purchase orders for orders below 50 seats/licenses. For orders of 50 or more licenses the online store can be used or a purchase order can be sent to our support email address listed on our Support page. For smaller orders our online store can be used.

Purchasing Viscosity as a Gift

If you'd like to purchase Viscosity for someone else, the "This purchase is a gift" option on the online store. This option allows different license and billing details to be entered, as well as selecting which email address the license email is sent to.

When using the "This purchase is a gift" option, the desired recipient's details should be entered into the "License To" section. These details will be used when generating the license. The purchaser's details should be entered into the "Billing Information" section. These details will be used for processing the payment, emailing the receipt, and listed on the invoice.

A "Send License email to" option will also appear when using the gift option. By default the license email will be sent immediately to the recipient's email address entered in the "License To" section. However if you would prefer to receipt the license email so you can give it to the recipient at a later date, select the "Billing Email Address" option instead.

Information for Software Resellers

Information for software resellers, including how to generate a quote and make a purchase, can be found at Information for Software Resellers.

Vendor and Supplier Forms

Sadly we cannot complete "vendor forms" or "supplier forms". Our company information, including mailing address details and business/tax numbers, can be found near the bottom of the Company section of our website. Viscosity's EULA can be found in the Legal section.

Online Store Troubleshooting

Our online store is designed to accept a variety of payment methods and work on most desktop and mobile devices. If you are encountering a problem making a purchase please see if it is covered below and please contact us if you're still stuck.

The purchase was not successful as charging your credit/debit card failed

Such an error typically indicates that one or more of the credit card fields were entered incorrectly, or the address information does not match what your bank has on file. Please double check that the credit card number, expiry date, and security code are correct, and that the address information is correct. Your bank may reject the payment attempt if it looks fraudulent, such as when having incorrect or invalid address, country, or zip code information details.

Special card types can also fail for other reasons. If using a debit or pre-paid card please ensure that sufficient funds are available. Please be aware that in rare instances some company and pre-paid cards may have location limits placed on them. In these instances it is necessary to contact the issuing bank and approve purchases from Australian merchants.

The purchase was not successful as charging your PayPal account failed

When making a payment using the PayPal option the above error may occur if there are insufficient funds in your PayPal account or attached funding source. Please try adding funds to your PayPal account or ensuring that any attached credit card or bank account details are up-to-date and valid.

PayPal may also block payments from IP addresses it deems suspicious or it has seen fraud from in the past. If making a purchase while connected to a commercial VPN Service Provider please try disconnecting or using a different network and see if the error persists.

400 Bad Request Browser Error

Our payment provider's processing SDK requires that Javascript is enabled and a reasonably recent web browser is used. If Javascript is unavailable, a web browser extension is interfering, or the web browser does not meet the minimum requirements listed below, a 400 Bad Request error may be displayed when attempting to make a purchase. Please note that in these instances you have not been charged.

Desktop Browser Requirements: Safari 8+, Internet Explorer 9+, Microsoft Edge, Firefox latest, Chrome latest. iOS Browser Requirements: Safari 8+, Chrome 48+ (iOS 9+). Android Browser Requirements: Native browser 4.4+, Chrome, Firefox.

To resolve the error please enable Javascript in your web browser, temporarily disable any ad-blocker or browser extensions, or try from a different up-to-date browser or device.

The VAT Number Entered Could Not Be Validated Error

If purchasing from an EU country, and a VAT number has been entered, we are required to validate it against the EU's VAT number validation API (VIES). If you have received a validation error, please first double-check that the number entered is correct and valid. It should follow the standard VAT number format and not include any extra spaces or special characters. You can test that the VAT number is valid using the VIES VAT Number Validation website.

If you're sure that the VAT number is valid and it is still being rejected, then the VIES validation API may be temporarily down or unavailable. This is not uncommon, as EU member countries may take their API endpoint down for maintenance, or the API can become overloaded at times. The VIES Self Monitoring page can be used to check whether the API may be down: a red coloured country code indicates that VAT numbers for that country cannot currently be validated. If you suspect the API may be unavailable, please try waiting and try again in a few hours time.

Failed Credit Card Payment Listed On Bank Statement

If a payment attempt via credit card fails (for example, your bank rejects the payment attempt), you may temporarily still see an item listed on your bank statement. This is known as an "authorization hold" or "card authorization", which occurs when the payment processor checks to see whether the card is valid and has available funds. You have not been charged, and the item/s will disappear shortly (typically within a few minutes, however depending on your bank it can occasionally take up to several days). If you have failed payment attempt followed by a successful purchase, this can sometimes mistakenly make it look like you have been charged multiple times.

Tax Information

As an Australian company, SparkLabs is exempt from withholding taxes in some countries like the United States.

SparkLabs is required to charge GST on Australian purchases. The amount of GST charged is listed on the invoice for your purchase. Our Australian Business Number (ABN) can be found on our Company page and on your invoice.

SparkLabs is required to charge VAT on European Union purchases. The amount of VAT charged is listed on the invoice for your purchase. If your business is VAT registered and a valid VAT Number is supplied at the time of purchase, no VAT is charged. Instead this should be accounted for under the VAT "Reverse Charge" mechanism. Our VAT Number can be found on our Company page and on your invoice.

For compliance reasons, global customers may wish to obtain the Certificate of Residency for SparkLabs (issued by the Australian Taxation Office), while customers in the United States may wish to obtain a copy of SparkLabs's W-8BEN-E form. Both of these are available for download from the View Invoice page: simply enter your purchase information and then scroll to the bottom of the page.