can't find definitive answer on site - only overview sentences that most IPCores are time unlimited without telling which are actually NOT.
Same applies for for Altera Quartus Prime Standard - yes, updates for 1 year, but is usage after then time unlimited ?
Welcome to INTEL forum. Based on my understanding, most of IP license is 1-year basis. You could also check in the output from the Encrypted IP Cores Summary report (Assembler Encrypted IP Cores Summary) whether the IP your using need license or not.
For further information on IP refer to link https://www.intel.com/content/www/us/en/programmable/support/support-resources/intellectual-property...
$25000 for IP-TURBO per year would be very high, can't find detailed licensing information on provided links, only casual sentence like:
"Licensing IP Cores The Altera IP Library provides many useful IP core functions for your production use without purchasing an additional license. Some Altera MegaCore® IP functions require that you purchase a separate license for production use. However, the OpenCore® feature allows evaluation of any Altera IP core in simulation and compilation in the software. After you are satisfied with functionality and performance, visit the Self Service Licensing Center to obtain a license number for any Altera product."
So, some require some not, but there is not info which one at all ... so not really usefull information
there also no info regarding validity period.