# S Tuner — Support your music activities

> A simple, accurate tuner and metronome for musicians. (iPhone/iPad app by Etsushi Otani.)

- Source: https://appshunter.io/ios/app/s-tuner/id1563149768 (this page in markdown: same URL + `.md`)
- Developer: [Etsushi Otani](https://appshunter.io/developer/1648246593)
- Category: Music, Lifestyle
- Price: Free
- Rating: 1.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 13 MB
- Languages: English
- Released: 2021-04-15
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/s-tuner/id1563149768/reviews.md

## What is S Tuner?

This app is a tuner that can be used with many instruments as well as guitars and basses.
Simple and easy-to-read design allows quick and accurate tuning.

Tuner:
・Intuitively know how far the frequency of the sound is from the standard with the meter
・You can tune theoretically and convincingly by displaying the frequency.
・The base frequency can be selected from 440Hz, 441Hz, and 442Hz, and supports various playing styles.

Metronome:
・Supports tempos from 1 to 300
・Sound and lamp inform you of the time signature

Volume Meter:
・Intuitively know how loud the meter is
・You can use the numerical value as a reference to determine how much more sound you should make.

## Key features

- Instrument tuner
- Frequency meter
- Selectable base frequency
- Metronome with tempo control
- Volume meter
- Simple interface

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/s-tuner/id1563149768/reviews.md

### 1/5 — Junk, does not function

*2022-12-21, version 1.2.1*

Junk

### 1/5 — Tuner non functional

*2021-09-19, version 1.2.0*

Tuner is completely non functional. As if it hears nothing through the mic at all. I double checked the app has permission to use microphone from the OS. Broken 100%.

## Frequently asked questions about S Tuner

### What instruments can S Tuner be used with?

S Tuner is designed to be used with a variety of instruments, including guitars and basses. Its intuitive design makes it suitable for quick and accurate tuning across different musical instruments.

### How accurate is the S Tuner?

The app features an intuitive meter that allows users to easily see how far the frequency of a sound is from the standard. It also displays the frequency numerically, enabling precise tuning.

### What is the supported tempo range for the metronome in S Tuner?

The metronome in S Tuner supports tempos ranging from 1 to 300 beats per minute. It also provides sound and lamp indicators to inform users of the time signature.

### Can I adjust the base frequency in S Tuner?

Yes, the base frequency in S Tuner can be selected from 440Hz, 441Hz, and 442Hz. This flexibility supports various playing styles and tuning preferences.

### Does S Tuner have ads?

The provided data does not specify whether S Tuner contains advertisements. However, it is listed as free with no in-app purchases.

### What devices is S Tuner compatible with?

S Tuner is compatible with iPhones, iPads, and iPods. It is available for users on Apple's mobile ecosystem.

### How often is S Tuner updated?

S Tuner was last updated on June 22, 2023, with version 1.3.1. This indicates a relatively recent update, suggesting ongoing support from the developer.

### What is the user rating for S Tuner?

S Tuner currently has a user rating of 1.0 stars based on 2 ratings. This indicates a low user satisfaction based on the available feedback.

## Version history (last 3 releases)

### 1.3.1 — 2023-06-22

Feature Modified:
- Fixed a bug that caused the microphone to keep working when the app was in the background.

### 1.3.0 — 2023-06-21

Feature addition:
- Notification of app version upgrades

### 1.2.1 — 2022-01-08

Feature fixes：
・The design is now compatible with iOS15.
・Some of the design has been modified.
・Changed the sound source of metronome.

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## More apps by Etsushi Otani

- [二次会ルーレット](https://appshunter.io/ios/app/id6443666990)

All apps by Etsushi Otani: https://appshunter.io/developer/1648246593

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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.*