After years of just ... avoiding the issue of why I can't play my local mp3s and flacs with my iPhone, I finally broke down this year and searched for a decent

After years of just ... avoiding the issue of why I can't play my local mp3s and flacs with my iPhone, I finally broke down this year and searched for a decent app for this, and the answer is an app called Doppler. It's not free, but it's not very expensive, and the developer is very responsive. Recommended.