Yr Xtals vs Redlined

This started as a tool, and grew into an obsession. Yr Xtals is seriously addictive. I can, and often have, been working on testing it and ended up draining hours just watching the visualizer dance to my music. It's fantastic. I can't imagine if you like music that you won't like this. Especially if you're an audio engineer and are hoping to gain a bit more perspective on your work. That is why I originally made this, and while it has grown into something much larger, it is still a precision audio analysis utility that I know you'll fall in love with, like I have. Enjoy!

Redlined is an iPhone audio recorder for DJ sets. Record from the built-in microphone or a supported connected audio input. Choose AAC, 24-bit WAV, or 32-bit float WAV. Watch live input levels and keep an active recording going in the background, with a Live Activity showing its status and elapsed time. Your local library keeps your recordings together. Add titles, dates, notes, and cover artwork; play, duplicate, export, or trim supported files into a separate copy. Import audio from Files and work with a local copy. Free recording supports any number of sets up to 30 minutes each. Redlined Unlimited is a one-time purchase that removes the per-recording time limit. All saved recordings remain available without a purchase. Compatibility depends on your iPhone and recording interface. Make a short test recording and listen back to confirm your setup. Storage, device, and file-format limits still apply.