Project properties limit

Hi,

Is there a limit for the number of project properties?

For example:

/rest/api/3/project/{projectIdOrKey}/properties/property-1
/rest/api/3/project/{projectIdOrKey}/properties/property-2
/rest/api/3/project/{projectIdOrKey}/properties/property-3

This article states: " Apps can store an unlimited number of entity properties against an entity. ". Could someone confirm that there is no limit?

Kind Regards,
Philip