I've been thinking about writing my own workout logger that better fits my use and I'd like to hear some recommendations on what language or framework to use.

I don't have any prior experience with mobile development nor with Java or Kotlin, and C++ I suspect would be needlessly low level for the features I'd like to include.

Features is like to include in the app is capability of recording video, playing video/audio, creating graphs and opening up in-app tabs. Fancy ui and animations is not of much importance.

Any recommendations on what languages to use and what libraries might be of interest to get going?