[sitesuniverse]

I think the first step would be to export routines as a spreadsheet. Eventually an app would be awesome though. Do you have any suggestions?

[tylerscott]

I have an open source app that uses a language called Traindown to record exercises. It might be of interest for folks who prefer text or more "free form" recording of workouts: https://traindown.com/transponder/.

[valtis]

Check out the app Zero to Hero on Android. It has been abandoned by the dev for a few years now, but it has everything I ever wanted in an app.

It has a few well known pre-built routines with different focuses, and then you can build your own if you so desire.

Auto weight progression, easy to use interface, rest timers, graphs, etc.

I still haven't found a replacement.