MP3 App development

Hello! I’m looking to develop an MP3 app that functions on Android. I am specifically looking for an app with a user-friendly interface design, as well as some other specific features or functions that I require. I am open to any suggestions you may have in terms of design and functionality. The goal is to create an intuitive and minimalistic user experience that is still easy to use. I look forward to your creative input!

What I want:

? Simple Kotlin & Swift apps that are open source

? Connect to Dropbox to get long mix MP3s

?️ Download them to the phone for backup

⏯️ Simple play, pause, skip forward 3 or 30 minutes