Low volume playback of MP3 created through DAW

This is not about low volume previously in file creation/mixdown/mastering to an MP3.

It is about what plays back in ipad pro latest platform once the Mp3 is loaded to the ipad pro.

If audio-share app is used to play the file -no issue.

All sliders in ipad pro for volume turned up.Same problem in trying to use Cubasis 3 for production of tracks/audio volume in ipad - ridiculously low making recording an issue.

This was not an issue in previous ipad pro platforms I have had. This is my third-3rd.

Any suggestions welcomed.Thxs Tully

[Re-Titled by Moderator]