# Audio Ruler — use sound to measure distance

> Measures distance using sound wave propagation from speaker to earphones. (iPhone/iPad app by AEXOL SP Z O O SPOLKA KOMANDYTOWA.)

- Source: https://appshunter.io/ios/app/audio-ruler/id1509013330 (this page in markdown: same URL + `.md`)
- Developer: [AEXOL SP Z O O SPOLKA KOMANDYTOWA](https://appshunter.io/developer/1191282096)
- Category: Utilities
- Price: $2.99
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 14 MB
- Languages: English
- Released: 2020-06-01
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/audio-ruler/id1509013330/reviews.md

## What is Audio Ruler?

The audio ruler is a new way of measuring distances. Unusually to other apps, the measurement process is based on the sound. Specifically, the distance traveled by a sound way from point A (phone speaker) to point B (earphones). The app is based on a genuine technical paper and the algorithm behind it is fueled by advanced math.

## Key features

- Sound-based distance measurement
- Advanced mathematical algorithm
- Based on technical paper
- Measures from speaker to earphones

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/audio-ruler/id1509013330/reviews.md

### 1/5 — Didn’t work so I just wasted a few bucks

*2020-06-04, version 1.0*

I followed the instructions. First time it said error. Second time it gave me a wildly inaccurate measurement. I was measuring my Apple TV remote and it told me it’s 29394 cm long.

## Frequently asked questions about Audio Ruler

### What is Audio Ruler?

Audio Ruler is a utility app that measures distances by emitting sound from your phone's speaker and detecting it with earphones. It utilizes advanced math based on a technical paper.

### How does Audio Ruler measure distance?

The app measures the time it takes for a sound wave to travel from the phone's speaker to the earphones. This time is then used with the speed of sound to calculate the distance.

### What devices does Audio Ruler support?

Audio Ruler is available for iPhone and iPod devices.

### What is the price of Audio Ruler?

Audio Ruler costs $2.99 and is a one-time purchase.

### What is the age rating for Audio Ruler?

Audio Ruler has an age rating of 4+.

### When was Audio Ruler last updated?

The latest version of Audio Ruler was released on November 24, 2020.

### What is the user rating for Audio Ruler?

Audio Ruler has a rating of 1.0 stars based on 1 rating.

### Does Audio Ruler have ads?

The provided data does not specify if Audio Ruler contains advertisements.

## Version history (last 1 release)

### 2.1 — 2020-11-24

In this version, we have updated the app visuals, added tutorial as well as provided algorithm improvements & various bug fixes.

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All apps by AEXOL SP Z O O SPOLKA KOMANDYTOWA: https://appshunter.io/developer/1191282096

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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 2026-06-10.*