Den: Calm Sounds for Dogs
Calming soundscapes for dogs
$1.99 · Designed for iPad. Not verified for macOS.
Den is a collection of 21 calming soundscapes, composed in real time for dogs — and for the people who share a home with them.
Every session is synthesized live on your device. Nothing loops and nothing streams: pure tones, slow heartbeat rhythms, pink noise, rain, and legato progressions are built note by note for the exact frequencies and tempos each program calls for. The only recordings in the app are two short door-knock and doorbell sounds used by the Practice programs.
THE LIBRARY
21 programs across 8 sections — Heartbeat & Rhythm, Tone Frequencies, Brainwave Entrainment, Stressful Events, Life Stage, Nature & Environment, Music & Full Sessions, and Practice. Each one carries a plain-English explanation and the research behind it, cited in the app.
MADE FOR SETTLING
• Programs from 20 minutes to 4 hours, or until you stop them
• A gentle fade-in and a 2-minute fade-out at the end, so sessions end softly
• Playback continues when you lock the screen or switch apps, with play and pause on the lock screen
• A night dim that settles the player to near-black after 30 seconds
• Session notes so you can record whether your dog settled, stayed the same, or was restless
THOUGHTFUL DETAILS
• Set your dog's name and photo once, and Den greets them by name
• Suggestions that read the moment: a program for car travel when Bluetooth connects, evening programs at dusk
• Large, calm controls — nothing flashes, nothing surprises
PRIVATE BY DESIGN
No account, no sign-up, no ads, no notifications, no tracking. Everything your dog does in Den stays on your device.
Den is company for the nervous system — a quiet room your phone can hold open. It is not a substitute for veterinary care; if your dog is in distress, please talk to your veterinarian.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Clearer sound on iPhone speakers.
• Theta Dream, Delta Deep, Senior Sleep and Schumann were very hard to hear through the phone's own speaker. They now come through clearly, with the same slow pulse as before.
• The heartbeat rhythm is easier to hear on the speaker.
• Every program is a little louder, and the volume now starts higher.
• The session length buttons are now the same size on every program.
The developer, PHILIP FRANKLIN MARKS, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- PHILIP FRANKLIN MARKS
- Size
- 14.8 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Phil Marks
