olemus
ISO/IEC/IEEE 24765, ISO/IEC 19770-3:
piiramatuks ajaks antud tarkvaraõiguste litsents
= license for a software entitlement granted in perpetuity

ülevaateid
https://resources.mestrelab.com/annual-perpetual/

https://www.sensrtrx.com/subscription-vs-perpetual-license-subscription-software-cheaper/

https://www.10duke.com/software-licensing-models/

https://controlhippo.com/blog/perpetual-license/

https://en.wikipedia.org/wiki/Perpetual_access

vt ka
- tähtajaline litsents