# Bass Tuner BT1 Pro — Tune low-frequency instruments

> Chromatic tuner optimized for low-frequency instruments with high accuracy. (iPhone/iPad app by Bijoy Thangaraj.)

- Source: https://appshunter.io/ios/app/bass-tuner-bt1-pro/id1433908873 (this page in markdown: same URL + `.md`)
- Developer: [Bijoy Thangaraj](https://appshunter.io/developer/453056920)
- Category: Music, Utilities
- Price: $4.99
- Rating: 4.90/5 from 100 App Store ratings · 33 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 2 MB
- Languages: American English, French (France), German (Germany), Hindi, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), European Spanish
- Released: 2018-09-08
- Data updated: 2026-09-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/bass-tuner-bt1-pro/id1433908873/reviews.md

## What is Bass Tuner BT1 Pro?

Bass Tuner BT1 is a chromatic tuner, offering precision tuning for low-frequency instruments like bass guitar, double bass, cello, bassoon, bass clarinet, bass trombone, bass saxophone, and more. This tuner is specifically built to handle the unique challenges of accurately detecting low-pitched notes. Bass Tuner BT1 combines a powerful tuning algorithm with an intuitive interface, delivering the ultimate tuning experience for bass-range musical instruments.

Key Features:
• Low-Frequency Optimization: Unlike standard tuners, Bass Tuner BT1 is designed to detect deep bass frequencies as low as A0 (27.5 Hz), making it ideal for tuning any bass instrument, from 4-string and 5-string bass guitars to wind and orchestral instruments.
• Extreme Accuracy: Tune with confidence! Bass Tuner BT1 provides precision tuning with an accuracy of ±0.1 cents, making it a perfect tool for professional musicians who need their instruments to be perfectly in tune for studio recordings, live performances, and practice sessions.
• Real-Time Pitch Detection: As you play, Bass Tuner BT1 instantly displays the current note, its frequency, and its deviation from the target pitch. This real-time feedback ensures you can tune to perfection every time.
• Visual Pitch Graph: Gain a deeper understanding of your tuning stability with the live pitch graph, which visualizes your pitch over time, showing fluctuations and helping you achieve consistent, accurate tuning.
• Tone Generator: Bass Tuner BT1 includes a tone generator that produces reference tones across a 3-octave range, perfect for those who prefer tuning by ear or need a reference pitch for tuning multiple instruments.
• Custom A₄ Frequency: Set a custom A₄ frequency to suit your needs, whether you're playing baroque music or experimenting with alternate tunings. Bass Tuner BT1 allows you to tune to non-standard pitch values with ease.

Why Bass Tuner BT1?
Most standard tuners are designed for mid-range instruments, leaving bass musicians with inaccurate readings when trying to tune low-pitched notes. Bass Tuner BT1 solves this problem by focusing specifically on low frequencies, offering unmatched accuracy for bass instruments. Whether you’re a professional performer, a student, or a casual player, Bass Tuner BT1 makes it easier than ever to get your instrument perfectly in tune.

Bass Tuner BT1 is extremely helpful in:
• Live Performances: Quickly tune on stage with real-time feedback and extreme accuracy.
• Studio Recording: Achieve pitch-perfect results with the high-precision tuning algorithm.
• Practice: Visualize your pitch stability and improve your tuning accuracy using the pitch graph.

Get the Best Tuning Experience:
With a user-friendly interface and responsive design, Bass Tuner BT1 ensures you spend less time tuning and more time playing. Whether you’re tuning at home, in the studio, or on stage, this tuner provides the tools you need for fast, reliable tuning in any environment.

Download Bass Tuner BT1 now and experience the difference!

## Key features

- Low-frequency optimization
- Extreme accuracy (±0.1 cents)
- Real-time pitch detection
- Visual pitch graph
- Tone generator
- Custom A₄ frequency

## Recent user reviews (10 of 33)

All indexed reviews: https://appshunter.io/ios/app/bass-tuner-bt1-pro/id1433908873/reviews.md

### 2/5 — Basic great, but start with Pro.

*2026-08-06, version 3.16*

Great app!—have recommended it to several friends…Ads, as usual, are obnoxious

### 5/5 — Reliable

*2026-04-15, version 3.16*

Been using this tuner for years. Works great.

### 5/5 — Basic great, but start with Pro.

*2026-04-05*

Great app!—have recommended it to several friends…Ads, as usual, are obnoxious

### 5/5 — Freakin amazing tuner

*2026-02-25, version 3.16*

By far the easiest to use for the most accuracy. The UX idea of the waveform is fantastic. I use it while repairing basses.

### 5/5 — The Best

*2026-01-03, version 3.16*

Perfect tuning for Bass, Ukulele, Guitar and Banjo. Maybe not for Piano. Best to hire a piano tuner.

Best tuner app out there. Highly recommend for True Tone.

### 5/5 — Better than Boss and Shure!

*2025-06-08, version 3.16*

Better than my boss tu3 and my Shure GLXD16+ Digital Wireless Guitar Pedal System.  Both professional standard units. The wave signal is easy to see and quickly adjust my tuning. I am meticulous about intonation. I only play 5 n 6 fretless basses. The apps recognition of the E and B string is instant, clear and simple to tune to. Most tuners i’ve used the tuning of the E and B are a bit dodgy. If this format of tuning was available in a stomp pedal i’d buy it. Buy it immediately. Credit where credit is due. This app is brilliant.
Needs a trial as part of the purchase though. I chanced the purchase. $9? ABSOLUTELY WORTH IT!
Also they don’t take your info.

### 5/5 — Funktioniert

*2025-03-24*

Erfasst meine HEAD Stimmung ohne Probleme, kein Nonsense, prima.

### 4/5 — Pitch is accurate

*2025-03-24, version 3.16*

both the drone and tuner functions show accurate pitch.  I like the way the tuner shows the pitch with the background changing colors. The only drawback is that the orientation is fixed so when I rotate the iPhone the display is upside down

### 2/5 — Wanted to love it

*2025-03-01, version 3.16*

As a bassist, the premise is great. I should have played with the free version first, but that’s on me. A,D,G tune just fine, but on a 4 string Yamaha with absolutely nothing special about it, the app tunes the E WAY out of tune. I tried changing settings and simply trying it over and over again. I just couldn’t get it to tune my E, and I wasn’t about to test it with my 5 string. ¯\_(ツ)_/¯

### 5/5 — BassLOVE

*2025-02-22, version 3.16*

5 String Bass Player. (Low B) Fretless….. Love the Fast and Accuracy display… Acoustic & Electric! 
I got the (Pro) upgrade for $4.99… 
What a deal! 😉😎

## Frequently asked questions about Bass Tuner BT1 Pro

### What is Bass Tuner BT1 Pro?

Bass Tuner BT1 Pro is a chromatic tuner specifically designed for low-frequency instruments. It offers high precision and advanced features to accurately tune instruments like bass guitars, double basses, cellos, bassoons, and more.

### What makes this tuner different from standard tuners?

Unlike standard tuners that are optimized for mid-range instruments, Bass Tuner BT1 Pro is built to accurately detect deep bass frequencies as low as A0 (27.5 Hz). This specialized optimization ensures reliable and precise tuning for bass-range instruments.

### Is Bass Tuner BT1 Pro free to use?

Yes, Bass Tuner BT1 Pro is available for free. The application does not feature in-app purchases or advertisements, allowing users to access all its tuning functionalities without cost.

### What instruments can I tune with Bass Tuner BT1 Pro?

This app is ideal for a wide range of low-frequency instruments. This includes 4-string and 5-string bass guitars, double bass, cello, bassoon, bass clarinet, bass trombone, and bass saxophone, among others.

### What are the key features for tuning?

Key features include low-frequency optimization, extreme accuracy of ±0.1 cents, real-time pitch detection with instant note and frequency display, a visual pitch graph for stability monitoring, a tone generator for reference pitches, and the ability to set a custom A₄ frequency.

## Version history (last 5 releases)

### 3.16 — 2025-02-17

Framework and security updates.

### 3.15 — 2024-09-19

• Improvements to the tuning algorithm
• User interface improvements
• Support for additional languages

### 3.13.1 — 2021-05-24

Fixed an issue with the tone generator.

### 3.13 — 2021-05-21

This update contains minor stability and performance improvements.

### 1.4 — 2020-11-15

Fixed a bug that caused a crash in iOS 9 devices.

## Apps similar to Bass Tuner BT1 Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Bass Tuner BT1](https://appshunter.io/ios/app/bass-tuner-bt1/id1433908656) | 4.6 (1,619) | Free | Music |
| [Guitar Tuner - Ukulele & Bass](https://appshunter.io/ios/app/guitar-tuner-ukulele-and-bass/id662890455) | 4.4 (7,464) | Free | Music |
| [Metronome Tuner \| Practice+](https://appshunter.io/ios/app/metronome-tuner-practice-plus/id858142974) | 4.4 (2,812) | Free | Music |
| [Bass Tuner >>](https://appshunter.io/ios/app/bass-tuner/id1471438485) | 4.2 (705) | Free | Music |
| [Smart Metronome & Tuner](https://appshunter.io/ios/app/smart-metronome-and-tuner/id889571826) | 4.7 (59,289) | Free | Music |
| [Tuner Lite by Piascore](https://appshunter.io/ios/app/tuner-lite-by-piascore/id635828559) | 4.5 (9,949) | Free | Music |

## More apps by Bijoy Thangaraj

- [Tuner T1](https://appshunter.io/ios/app/tuner-t1/id453056916)
- [Rhythm Pad Pro](https://appshunter.io/ios/app/rhythm-pad-pro/id457863522)
- [Rhythm Pad](https://appshunter.io/ios/app/rhythm-pad/id504321020)
- [Music Tutor Plus](https://appshunter.io/ios/app/music-tutor-plus/id507691358)
- [Music Tutor (Sight-reading)](https://appshunter.io/ios/app/music-tutor-sight-reading/id514363426)
- [Metronome M1 Pro](https://appshunter.io/ios/app/metronome-m1-pro/id951002984)

All apps by Bijoy Thangaraj: https://appshunter.io/developer/453056920

## Related topics

[bass tuner bt1 pro](https://appshunter.io/ios/topics/bass-tuner-bt1-pro) · [bass tuner bt1](https://appshunter.io/ios/topics/bass-tuner-bt1) · [clarinet tuner bass](https://appshunter.io/ios/topics/clarinet-tuner-bass)

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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 2026-09-06.*