CoolCarMusic vs Sound With Bones
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CoolCarMusic
Discover curated music playlists specifically designed for driving. Enjoy high-quality audio streaming across multiple categories with random playback options. No account is needed to start your journey with the perfect soundtrack.
- Curated driving music
- Multiple music categories
- Random playback
- High-quality audio streaming
- No account required
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Features: • Carefully curated music for driving • Multiple music categories • Random playback within each category • High-quality audio streaming • No account required Music is streamed directly through the app and requires an internet connection. Cool Car Music is designed to provide an easy, distraction-free listening experience wherever you drive. All soundtracks and music are original contents owned by Cool Car Music. All Rights Reserved @ 2026 Cool Car Music. Reproduction, redistribution, resale, extraction, or other unauthorized use of audio from Cool Car Music is not permitted.
Sound With Bones
Create unique musical instruments by drawing physical structures. Hear your creations sing, then manipulate their mass and stiffness to shape the sound. Record and edit performances, or export your creations as audio files.
- Draw physical instruments
- Shape sound by adjusting mass and stiffness
- Record and edit performances
- Export audio and editable workshops
- Two-handed play with damping and pinning
- Learn physics through sound experiments
- AUv3 instrument for music apps
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Draw a structure you can play. Hear it sing, then record how you change it while it rings. Sound With Bones is a physical modeling instrument built from your drawings. A sketch becomes connected joints whose mass and stiffness shape the sound. Pluck a joint, cut a ringing connection, then repair it and hear the structure change. HEAR YOUR DRAWING SING Tap Listen and your drawing plays a whole song, tuned from its own resonances. Change the shape and the same song sounds new. Soft Geometry, an original, and Twinkle, Twinkle are free. SHAPE SOUND BY LISTENING Choose a brighter or less bright sound. The Workshop proposes small changes to a joint's mass or a connection's stiffness. Compare each edit with the same strike, reference pitch, duration and listening level. Keep a version or return to your original. CHANGE THE INSTRUMENT AS IT PLAYS In Workshop > Perform, record the strikes, cuts and repairs you play. Keep the take as editable actions on a beat timeline. Move an action, adjust the tempo and replay it from the drawing captured at the start. A cut changes the sound already ringing. You can also arrange actions by hand. With Plus, export the performance as WAV with its editable workshop. MAKE A FAMILY OF RELATED SOUNDS Create soft, firm, edge and broken variations from one drawing. Edit the strike location, force, softness and connection cut, and hear each one. With Plus, export named 24-bit stereo WAV files at 48 kHz together with the workshop, drawing and recipes. PLAY WITH TWO HANDS Hold one joint while another finger plucks the shape. Damp removes energy where that joint moves. Pin constrains the held joint and changes its resonances. Release it to hear the original structure again. LEARN BY LISTENING Predict what lighter joints will do, hear the natural resonance change, then try an unfamiliar drawing. Isolate one vibration mode or listen to local damping. Save your prediction, measured result and both sounds. Reopen the exact comparison even after changing your current drawing. These experiments use the same physical model as your instrument. BRING YOUR DRAWINGS INTO A MUSIC APP The included AUv3 instrument responds to MIDI notes, velocity and sustain in compatible hosts. Open an exported drawing or workshop in the plug-in. Its drawing is saved with the host project. KEEP YOUR WORK Save instruments, recordings and workshop versions locally. Share editable drawings and workshops through Files. Export recordings as M4A, or import supported audio into your library. Imported recordings remain audio clips; they do not become physical instruments. SOUND WITH BONES PLUS Drawing, playing, cutting, recording, saving, sharing, Workshop comparisons, performances, learning and the AUv3 instrument are free. Plus adds: • 8 more songs, including Für Elise, Canon in D, Bach's Prelude in C and Gymnopédie No. 1 • 8 sculpted shapes: Ribcage, Wishbone, Shell, Bell, Harp, Kalimba, Star and Web • Recordings up to 10 minutes (free recordings stop at 1 minute) • 24-bit WAV export of sound families and Workshop performances • New songs and shapes as they are added Plus is available as a yearly subscription with a 7-day free trial, a monthly subscription, or a one-time lifetime purchase. Payment is charged to your Apple Account when you confirm, or when the free trial ends. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. No account or microphone access is required. Synthesis and recording run on your device. Synthesized sounds come from the drawing's physical model. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sound-with-bones.netlify.app/privacy
Screenshots
Verdict
CoolCarMusic and Sound With Bones both sit at 5.0 stars, but that hides the real split: 100% of Sound With Bones's written reviews are positive against 40% of CoolCarMusic's. Sound With Bones also leads on ratings volume (3 vs 1). CoolCarMusic's advantage is update cadence (every 2 days vs weekly) and iOS requirement (15.0 vs 18.0). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. CoolCarMusic sells 1 one-off in-app purchase and Sound With Bones sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for CoolCarMusic against 5.0 for Sound With Bones. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews are what separate them: 40% of CoolCarMusic's written reviews are positive against 100% of Sound With Bones's.
CoolCarMusic ships an update every 2 days, Sound With Bones weekly. Both last shipped on November 10, 2026.
| Parameter | CoolCarMusic | Sound With Bones |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 40.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 2 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 8 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | DPTech Limited Liability Company | No Worries! Lifestyle, LLC |
Customer experience
CoolCarMusic
Sound With Bones
In-app purchases
CoolCarMusic
- Unlock All Music$3.99
Sound With Bones
- Plus Monthly$4.991 Month
- Plus Yearly7 Days trial$29.991 Year
- Plus Lifetime$59.99









