Measuring turntable speed


Happy Holidays everyone!  This has probably been discussed before but I'm of the age that makes me a bit of a Luddite.  I have a VPI Scout and SDS.  I use "The Ultimate Analogue Test LP" to play the test tone and (at least I used to) the app Dr. Fridrekson(??) had other there.  It mysteriously disappeared from my iPad and I can't find it anywhere.  What are you using?  Thanks!
scarlson
Try RPM Pro. An app for your smartphone. You put the phone on your turntable and the results are really accurate.
If you have an Android phone, download the app called
RPM Calculator, it’s pretty accurate or, if you have iPhone, download the app called RPM, they are both good and free.
Great programs but I think the one called RPM Speed and Wow on Android has the edge.
I checked that one against my industrial strobe and it was surprisingly accurate.
Average of 33.39.

I am impressed with it.
+1 on the RPM Speed and Wow app I used it on my TT and it registered 33.35 and I compared it to my $15.00 laser RPM meter that big_greg mentioned and that registered 33.29 so between the 2 I should be pretty close and my Acoustic Solid 111 Metal keeps it constant, I check it once a month and for 11 months no variation from my base line readings.