# SonaRest: Custom Shoulder Rest — Scan to fit your violin rest

> Scan to fit your violin rest (iPhone/iPad app by Sona 3D Labs, LLC.)

- Source: https://appshunter.io/ios/app/sonarest-custom-shoulder-rest/id6792059996 (this page in markdown: same URL + `.md`)
- Developer: [Sona 3D Labs, LLC](https://appshunter.io/developer/6792059998)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 31 MB
- Languages: American English
- Released: 2026-11-05
- Data updated: 2026-11-13

## What is SonaRest?

Requires a SonaRest order from sonarest.com. The app unlocks with the 12-character code in your order email.

SonaRest makes violin and viola shoulder rests shaped to the person who plays them. This app is how we measure you.

HOW IT WORKS
• Enter the code from your order email.
• Print the 2-page sheet. Cut out the board on page 2 and tape all four corners to a hardcover book.
• The player holds the book against their right side, printed side facing the camera, and stays still. A helper films with the phone, guided by rings the app draws around the shoulders.
• Record two slow passes — one across, then the same arc back. It takes a few minutes.
• Send the scan. We build your rest from it, 3D-print the body in PLA with a foam pad, and ship it.
• When your scan is processed, you can see your shoulder in the app and choose where the rest sits before we print it.

PRIVACY
• Video is recorded without sound.
• The video shows the player's face. It is sent to us and used only to build the rest.
• It is not used to train AI models.
• Your face is cut out of the 3D shape we show you.
• Videos are deleted within 90 days of your rest being delivered. If a delivery date was never recorded, they are deleted within 180 days of your scan. You can ask us to delete yours sooner from the "Your data" screen.
• If you film someone else, including a child, the app asks you to confirm you have their (or their parent's) permission first.

SIZES
Every violin size from 4/4 to 1/32 and every viola size from 10" to 17".

Questions: contact@sonarest.com

## Is SonaRest safe?

Not enough ratings yet to assess SonaRest.

## Is SonaRest legit?

SonaRest: Custom Shoulder Rest has limited verification signals. The AppsHunter Legitimacy Score for SonaRest is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.3.0 — 2026-11-11

A clearer scan. The camera screen now takes you through it one step at a time: Calibrate, Set front, then walk to the start and record. The button for the next step glows, and cues on screen tell the helper which way to walk.

### 1.2.0 — 2026-11-10

A simpler setup: the printed board goes on a book that the player holds at their side. Printing and the scale check now live in the tutorial, and the 3-D preview shows your rest's legs on your shoulder.

### 1.0 — 2026-11-05

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-13.*