Den · Calm Sounds for Dogs
Pick the moment, press play. Den is organized around the things that actually set dogs off — thunder, fireworks, the car, the vet, the doorbell — with a sound and a plan for each. It even notices when your phone connects to the car and offers the Car Ride session before you pull out.
$1.99 · one-time purchase · no subscription · iPhone, iPad, and Android
Cover the rumble, settle the shakes.
For the loud nights — the Fourth, New Year's, Diwali.
Naps and bedtime, with a long timer and a dimmed screen.
Smoother travels — ready the moment your car connects.
Vet visits and unfamiliar rooms.
Practice the sounds that set them off, a little at a time.



A gentle, week-by-week program. Knocks start barely there; you sit with your dog, and only raise the level when they lift their head and settle again. Den tells you what to watch for at each step.
Long sessions for naps and nights, with the screen dimmed so it won't light up the room. Turn on Breathe Along for a soft haptic on each breath while you sit with them.
When your phone connects to the car, Den offers the Car Ride session right on the home screen — one tap and it's playing before you leave the driveway.
"The sound helps. But the routine — same spot, same time, you sitting nearby — does just as much. Den is built to make that routine easy." — Phil Marks, musician and dog person
A note on care: Den is a comfort and practice tool, not veterinary treatment. Keep the volume at a comfortable room level, go slowly with the doorbell practice, and stop if your dog seems more stressed. For severe noise fear or sudden changes in behavior, talk to your vet.
Questions? Email me and I'll answer personally. — Phil Marks · Chromesthesia