# Double Bass Tuner – XTuner PRO — Accurate Double Bass Tuner App

> Offline double bass tuner with auto, manual, and chromatic modes. (iPhone/iPad app by NETIGEN KLUZOWICZ SPOLKA JAWNA.)

- Source: https://appshunter.io/ios/app/double-bass-tuner-xtuner-pro/id6744967954 (this page in markdown: same URL + `.md`)
- Developer: [NETIGEN KLUZOWICZ SPOLKA JAWNA](https://appshunter.io/developer/892331873)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Rating: 3.20/5 from 5 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 54 MB
- Languages: English
- Released: 2025-05-22
- Data updated: 2026-07-06
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/double-bass-tuner-xtuner-pro/id6744967954/reviews.md

## What is Double Bass Tuner?

Double Bass Tuner – XTuner PRO is an easy-to-use free mobile application with which you will be able to tune your double bass quickly.
The sounds for our application were recorded by professional musicians. Sounds that cannot be generated by a musician have been created synthetically. App works offline. What is the most important: it is a free tuner.   

The algorithm in the double bass tuner offline app has been prepared for the most effective recognition of instrument sounds. To get the auto tune result, play the sound several times.  

Double Bass Tuner – XTuner PRO app for instruments has three modes: auto tune, manual and pro - chromatic tuner mode. App works offline.
- Auto Tune – automatic tuning – examined the frequency of the signal is interpreted to the next clear sound of the specific frequencies of pure sound.  
- Manual – sound tuning - select a specific sound that will be tuned.  

Features in the tuning app:  
- the ability to set the frequency of sound "a" (concert pitch) in Hz (herz),  
- the ability to determine the deviation from the base frequency in cents, 
- instrument head view,
- ability to set frequency filter 
- custom tuning
- presets for your music instrument
- chromatic tuner mode – you can practise diapason using it 
- auto tune and manual mode 
- professional frequency settings – choose the concert pitch in Hz and transposition 
- double bass tuner offline
- it is a free pro tuner; you don’t have to pay. 

If you would like to have version of the free tuner with no ads, you can buy premium forever or subscription. If you will have any problems with Double Bass Tuner – XTuner PRO app, please feel free to contact us: mobile@netigen.eu.

EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://netigen.eu/privacy/

More information: https://xtunerpro.com/doublebass

## Key features

- Offline tuning
- Auto tune mode
- Manual tune mode
- Chromatic tuner mode
- Customizable concert pitch (Hz)
- Frequency deviation in cents
- Instrument head view

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 1 week subscription + trial | $2.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Forever one-time payment | $19.99 | one-time |



## Frequently asked questions about Double Bass Tuner

### Does Double Bass Tuner have ads?

Yes, Double Bass Tuner contains advertisements. Users can opt for a premium version with no ads by purchasing a subscription or a one-time premium unlock.

### What is the price of the Double Bass Tuner subscription?

A 1-week subscription is available for $2.99, which includes a 3-day free trial period.

### How accurate is Double Bass Tuner?

The app uses an algorithm designed for effective recognition of instrument sounds and can determine deviation from the base frequency in cents, aiming for precise tuning.

### Can I use Double Bass Tuner offline?

Yes, Double Bass Tuner works completely offline, allowing you to tune your instrument anywhere without an internet connection.

### What devices does Double Bass Tuner support?

Double Bass Tuner is supported on iPhone, iPad, and iPod devices.

### What is the age rating for Double Bass Tuner?

Double Bass Tuner has an age rating of 4+, making it suitable for a wide range of users.

### How often is Double Bass Tuner updated?

The app was last updated on August 27, 2025, indicating ongoing development and support.

### What are the different tuning modes in Double Bass Tuner?

Double Bass Tuner offers three modes: Auto Tune for automatic tuning, Manual mode for selecting specific sounds, and a Pro chromatic tuner mode for practicing diapason.

## Version history (last 3 releases)

### 1.0.24 — 2025-08-27

Overall improvement in application performance

### 1.0.20 — 2025-06-25

General improvement of the app.

### 1.0 — 2025-05-22

No release notes.

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All apps by NETIGEN KLUZOWICZ SPOLKA JAWNA: https://appshunter.io/developer/892331873

## Related topics

[double bass tuner](https://appshunter.io/ios/topics/double-bass-tuner) · [double bass](https://appshunter.io/ios/topics/double-bass) · [easy double bass tuner](https://appshunter.io/ios/topics/easy-double-bass-tuner) · [free bass tuner double](https://appshunter.io/ios/topics/free-bass-tuner-double) · [double bass tuner simple](https://appshunter.io/ios/topics/double-bass-tuner-simple) · [xtuner pro](https://appshunter.io/ios/topics/xtuner-pro)

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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 2026-07-06.*