I used Rocktape for an achilles injury…absolutely worked with that injury, very easy to apply (watched several online videos on how to). Sounds crazy but pain/discomfort disappeared the very next run. Highly recommended for achilles problems. I wore it on my achilles for the last sprint I did.
Also used it for several bouts of medial tibial stress syndrome (shin splints on the inside of the leg)…same thing, watched some how to vids, it was much more complicated to tape for that type of injury, did my best but couldn’t tell one bit of difference, felt like it didn’t do a thing to help.
So…50/50 for me, but it probably comes down to proper application.