Speaking retail, APX1 were Curv/Alive, as were APX2.
Last top-model tech mesh was the x:60 (the generation before the APX1 was introduced), prior to that the XXXX, and the XXX before that. Don't know about earlier models as those pre-date me playing hockey.
Same year that the APX1 was released, the x7.0 (not X7.0, which was mid-tier) was the second-tier skate that was identical to the x:60/XXXX.
The APX1 was extremely stiff, with a tongue that offered very little protection. APX2 was said to be less stiff in the boot, as plenty of people complained. So I wouldn't be surprised if the APX1 retail is stiffer than what is out now in retail.
Pro-Stock there was the Nexus 1N/7000 V-Cut, which was a x7.0 re-dressed as a Nexus skate.