I doubt anyone has tried both. They are so obscure, and to have access to both systems would be a stretch.
I didn't like the built in drills on mine that much. I preferred to use it to mark a random rack, then practice getting out that rack over and over. I had about 10 racks I'd cycle between.
The PPB is a father-son team. The son is the programmer, the father is the player. They might have had a secretary at one point too. They were always super responsive to me in both email and FB, even when I was being an ass. I also screwed up the Raspberry pi trying to reinstall some software (my fault). They told me to sent it back to them and they fixed it for me in a day and then sent it back. (this was around 2022 or so). I'm quite surprised there are recent reports of poor communication. I'm in that FB group and saw those reports also.
The ICA system I'd bet is also just Robin developing the drills and a programmer he hired, so just as small a company.