Purchase Protection Only

If you only need Protection without the many benefits of Automation, you can purchase one of our licensing clients and manually manage customers, licenses and activations.

The truth is, most of our customers choose to save time and money by using the features and services included with the Protection + Automation Bundle. Not only does it count and limit the activations for each license, it also saves time, gives you more control and provides customers the immediate gratification they are looking for, with features like:

  • Automated ​license activation 24/7/365
  • Customer self-service portal to see and manage licenses
  • Periodic license validation
  • New version notification
  • License revocation
  • Automated license transfer to another computer​

​Before You Purchase

​Before you purchase Protection without Automation, be sure to read our blog post, 7 Ways License Automation Increases Revenue and Saves Time.

​If you prefer to manually organize and manually manage your customers and licenses, then you can purchase the licensing client(s) you need below.

Note:  All licenses are sold by developer workstation.  AutoCrypt SL requires Protection + Automation Bundle.

Instant Protection PLUS 3


Protection PLUS 5 SDK .NET Edition


Protection PLUS 5 SDK Native Edition for Windows


Protection PLUS 5 SDK Native Edition for macOS


Protection PLUS 5 SDK Native Edition for Linux


Protection PLUS 5 SDK LabVIEW Edition (multi-platform)
Contact us to verify appropriateness of using this product.


Protection PLUS 5 SDK Java Edition (multi-platform)


Protection PLUS 5 SDK Android Edition


Protection PLUS 5 SDK Native Edition for Linux (ARM)


Protection PLUS 5 SDK License Manager
License Manager is included with each Protection PLUS 5 SDK Edition.


Multiple Developers and/or Multiple Editions
Discounts apply when multiple licenses are  purchased at the same time.

Legacy Products

Contact us to verify appropriateness of using these products:

Protection PLUS 4 SDK Enterprise Edition License


Software Maintenance

Each license of our software comes with one year of software maintenance, which includes updates and electronic support. This maintenance is renewable at any time, and is optional.

Annual maintenance renewals cost roughly 20% of the license cost.

Be sure to keep a safe archive of the installation media for the version that you purchased and are using in your software. Only the latest version is kept on our website and only for customers with an active maintenance agreement.


We Have Been a Protection PLUS User for 20 Years!

We are test specialists in leadership selection & development, hiring, career testing, and clinical & personality testing.

We have been a Protection PLUS user for 20 years. We have hundreds of software installations that rely on SoftwareKey's protection.

We needed a solution that didn't require USB devices, was resistant to tampering but also resistant to protection failures, in order to reduce our support costs and increase customer satisfaction.

We particularly like the simple integration into our Windows software. We needed to be able to track licenses and pay-per-use to computers not on public networks. As Windows has evolved, so has the Protection PLUS product.

We're looking forward to upgrading to Protection PLUS 5 SDK and taking advantage of network licensing and the .NET model.

Richard Sleegers SIGMA Assessment Systems, Inc.


We stand behind our products and services. If for any reason you are not completely satisfied with your Protection PLUS purchase and we are unable to remedy the situation, simply contact us within 30 days of receipt and we will gladly provide a refund.