I took one as a kid, my parents had all of us tested. I was always told I was smart but they never told me the number. Just that “you can do anything you put your mind to”. I literally didn’t know I was taking an IQ test and have no memories of what it was like other than the person doing the test was a lady and she had me doing something with wooden blocks. This was all as a prerequisite to get into some gifted program. They lost my results for a bit so I didn’t get in until second grade (USA) so it had to be some time in first grade or before. I won’t spell out my life story here, so I’ll stop there. Anyway yeah that was my experience with it.

Reminds me of this app I’ve never used but seen that uses audio to transmit images with something called SSTV:

SSTV Encoder (Image encoder for Slow-Scan Television (SSTV) audio signals) https://f-droid.org/packages/om.sstvencoder/

(And also Robot36, I think one encodes and one decodes)

Please this needs to be a copypasta. Idk if that’s irresponsible or anything, don’t want anyone to get scammed. The ratio on this post is wild lmao