The iPhone speaker is good for a portable device, but it's not great. If you don't have a dock or external amplified speakers you can hook up to the headphone out jack you're stuck with the stock speaker. Here are a few tips to make the audio louder:
1. Maximize the volume within the app you're using by pressing the side volume buttons while you're already running the app.
2. Place the iPhone flat on a table and the volume will get a boost.






