Hey IH,
I've used a note on my phone as my workout tracker for years now. Every time I workout I copy and paste the session I want and change any weights that I need to. This worked for a while but it started becoming a bit painful, so I looked around for an app that would do this for me.
None of the workout planner apps seemed to be exactly what I wanted. They largely have a preset list of exercises that you can't add to, or they won't let you build your own sessions, or they're lacking some features that are important to me like rest periods.
Rather than compromise I decided to build my own solution, Stryde, which has just launched on the app store!
It's totally free, so please check it out!