A perpetual license means that the version of the software you purchase will never stop working. NI software licenses provide access to an NI software service program. These benefits are included in the first year of perpetual licenses. After the first year, software service is renewable on an annual basis. Even if you do not subscribe to software service, your software will continue to operate with the version you currently have installed. 

A subscription license gives you access to software on an annual basis. Once the term of the subscription license is up, you must renew your subscription to keep using the software. When you renew your subscription, you will also maintain access to your NI software service agreement benefits. 

Learn about the benefits of software services or read this article to help you decide which license option will best meet your needs.

There are no functional or feature-level differences when purchasing NI software through a subscription or perpetual license. Both licenses include the same features.

Debug and deployment licenses for the Vision Development Module are available only as perpetual licenses.

Yes. The Vision Development Module is an add-on product for LabVIEW and requires an active LabVIEW license. Users evaluating the Vision Development Module can also use it with a concurrent LabVIEW trial.