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Double Bass Tuner Basic
Accurate double bass tuning
ZM
USen-US
BRpt-BR
MXes-MX
CLes-MX
ARes-MX
BFen-GB
DOes-MX
UYen-GB
AGen-GB
AIen-GB
AOen-GB
BBen-GB
BJen-GB
BOes-MX
BSen-GB
BWen-GB
BZen-GB
CDen-GB
CGen-GB
CIfr-FR
CMfr-FR
COes-MX
CRes-MX
CVen-GB
DMen-GB
DZen-GB
ECes-MX
GAfr-FR
GDen-GB
GHen-GB
GMen-GB
GTes-MX
GYen-GB
HNes-MX
JMen-GB
KEen-GB
KNen-GB
KYen-GB
LCen-GB
LRen-GB
LYen-GB
MAen-GB
MGen-GB
MLen-GB
MSen-GB
MUen-GB
MWen-GB
MZen-GB
NAen-GB
NEen-GB
NGen-GB
NIes-MX
PAes-MX
PEes-MX
PYes-MX
RWen-GB
SCen-GB
SLen-GB
SNen-GB
SRen-GB
SVes-MX
SZen-GB
TCen-GB
TDen-GB
TNen-GB
TTen-GB
TZen-GB
UGen-GB
VCen-GB
VEes-MX
VGen-GBZMen-GB
ZWen-GB
73 of 73 storefronts
Content in en-US
Content in en-US
Information
Preview 2 platforms
iPhone 9 images
iPad 9 images
What’s New Version 4.2.5
· Optimization for the latest iPhones and iPads, including iPhone 17 Pro Max, iPhone Air and iPad Pro.
· Metronome, A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Description
Tune your double bass (contrabass) instantly with professional accuracy!
Perfect for orchestra, jazz, classical, and studio musicians.
• Displays exact pitch frequency in Hz
• A4 temperaments from 392Hz–466Hz
• Includes tuning fork & advanced settings (IAP)
• Exceptional sensitivity for low-frequency instruments
• LED tuning indicator for intuitive visual feedback
• Tuned string lights up automatically
• Universal app for iPhone & iPad
Allow microphone access:
Settings > Privacy > Microphone.
Questions?
feedback@daikyoujulabs.com
Capabilities
In-App Purchases
Accessibility
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Version history 25 versions
Build 884994971v4.2.52026-04-29 21:13:15
· Optimization for the latest iPhones and iPads, including iPhone 17 Pro Max, iPhone Air and iPad Pro.
· Metronome, A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 884527988v4.2.42026-04-15 15:03:36
· Optimization for the latest iPhones and iPads, including iPhone 17 Pro Max, iPhone Air and iPad Pro.
· Metronome, A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 880240743v4.2.32025-12-02 06:47:25
Settings now unlocked for everyone
The app runs smoother and faster
Small improvements throughout
Build 880223606v4.2.22025-12-01 06:28:35
· Optimization for the latest iPhones and iPads, including iPhone 17 Pro Max, iPhone Air and iPad Pro.
· Metronome, A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 879914325v4.2.12025-11-21 02:26:12
· Metronome and Chords Library are free for a limited time — enjoy them!
· Optimization for the iPhone 17 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning Fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes.
Build 879556050v4.22025-11-15 01:55:08
· Metronome feature is free for a limited time — enjoy it!
· Optimization for the iPhone 17 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 879097777v4.1.72025-10-21 18:50:33
· Optimization for the iPhone 17 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 878905158v4.1.62025-10-15 20:55:13
· Optimization for the iPhone 17 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 875672518v4.1.52025-06-19 05:50:59
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 872067640v4.1.42025-01-28 17:34:51
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 871251530v4.1.32024-12-19 10:49:42
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 871157191v4.1.22024-12-16 15:18:14
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 870852172v4.1.12024-12-03 17:00:16
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 870549386v4.12024-11-20 16:01:03
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
Build 870463541v3.9.92024-11-16 20:41:00
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 870215519v3.9.82024-11-05 19:19:54
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 870088310v3.9.72024-10-31 15:29:19
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 869839447v3.9.62024-10-19 19:56:54
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 869630748v3.9.52024-10-10 21:29:17
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 869223400v3.9.42024-09-24 15:36:35
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 866949717v3.9.32024-06-25 11:22:44
· Optimization for the iPhone 15 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 866508989v3.9.22024-06-06 22:47:27
· Optimization for the iPhone 15 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 865193135v3.9.12024-04-15 12:25:21
· Optimization for the iPhone 15 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 863829820v3.92024-02-18 17:31:39
· Optimization for the iPhone 15 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
Build 857728680v3.82023-06-11 11:56:47
· Optimization for the iPhone 14 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
No pricing data captured yet — comparisons appear once the app has paid storefronts or in-app purchases.
Availability 73 of 73 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
| US | en-US | Free | 188 | 4.2 | 4.2.5 |
| BR | pt-BR | Free | 28 | 4.6 | 4.2.5 |
| MX | es-MX | Free | 18 | 4.5 | 4.2.5 |
| CL | es-MX | Free | 2 | 3.0 | 4.2.5 |
| AR | es-MX | Free | 1 | 4.0 | 4.2.5 |
| BF | en-GB | Free | 1 | 3.0 | 4.2.5 |
| DO | es-MX | Free | 1 | 3.0 | 4.2.5 |
| UY | en-GB | Free | 1 | 4.0 | 4.2.5 |
| AG | en-GB | Free | 0 | — | 4.2.5 |
| AI | en-GB | Free | 0 | — | 4.2.5 |
| AO | en-GB | Free | 0 | — | 4.2.5 |
| BB | en-GB | Free | 0 | — | 4.2.5 |
| BJ | en-GB | Free | 0 | — | 4.2.5 |
| BO | es-MX | Free | 0 | — | 4.2.5 |
| BS | en-GB | Free | 0 | — | 4.2.5 |
| BW | en-GB | Free | 0 | — | 4.2.5 |
| BZ | en-GB | Free | 0 | — | 4.2.5 |
| CD | en-GB | Free | 0 | — | 4.2.5 |
| CG | en-GB | Free | 0 | — | 4.2.5 |
| CI | fr-FR | Free | 0 | — | 4.2.5 |
| CM | fr-FR | Free | 0 | — | 4.2.5 |
| CO | es-MX | Free | 0 | — | 4.2.5 |
| CR | es-MX | Free | 0 | — | 4.2.5 |
| CV | en-GB | Free | 0 | — | 4.2.5 |
| DM | en-GB | Free | 0 | — | 4.2.5 |
| DZ | en-GB | Free | 0 | — | 4.2.5 |
| EC | es-MX | Free | 0 | — | 4.2.5 |
| GA | fr-FR | Free | 0 | — | 4.2.5 |
| GD | en-GB | Free | 0 | — | 4.2.5 |
| GH | en-GB | Free | 0 | — | 4.2.5 |
| GM | en-GB | Free | 0 | — | 4.2.5 |
| GT | es-MX | Free | 0 | — | 4.2.5 |
| GY | en-GB | Free | 0 | — | 4.2.5 |
| HN | es-MX | Free | 0 | — | 4.2.5 |
| JM | en-GB | Free | 0 | — | 4.2.5 |
| KE | en-GB | Free | 0 | — | 4.2.5 |
| KN | en-GB | Free | 0 | — | 4.2.5 |
| KY | en-GB | Free | 0 | — | 4.2.5 |
| LC | en-GB | Free | 0 | — | 4.2.5 |
| LR | en-GB | Free | 0 | — | 4.2.5 |
| LY | en-GB | Free | 0 | — | 4.2.5 |
| MA | en-GB | Free | 0 | — | 4.2.5 |
| MG | en-GB | Free | 0 | — | 4.2.5 |
| ML | en-GB | Free | 0 | — | 4.2.5 |
| MS | en-GB | Free | 0 | — | 4.2.5 |
| MU | en-GB | Free | 0 | — | 4.2.5 |
| MW | en-GB | Free | 0 | — | 4.2.5 |
| MZ | en-GB | Free | 0 | — | 4.2.5 |
| NA | en-GB | Free | 0 | — | 4.2.5 |
| NE | en-GB | Free | 0 | — | 4.2.5 |
| NG | en-GB | Free | 0 | — | 4.2.5 |
| NI | es-MX | Free | 0 | — | 4.2.5 |
| PA | es-MX | Free | 0 | — | 4.2.5 |
| PE | es-MX | Free | 0 | — | 4.2.5 |
| PY | es-MX | Free | 0 | — | 4.2.5 |
| RW | en-GB | Free | 0 | — | 4.2.5 |
| SC | en-GB | Free | 0 | — | 4.2.5 |
| SL | en-GB | Free | 0 | — | 4.2.5 |
| SN | en-GB | Free | 0 | — | 4.2.5 |
| SR | en-GB | Free | 0 | — | 4.2.5 |
| SV | es-MX | Free | 0 | — | 4.2.5 |
| SZ | en-GB | Free | 0 | — | 4.2.5 |
| TC | en-GB | Free | 0 | — | 4.2.5 |
| TD | en-GB | Free | 0 | — | 4.2.5 |
| TN | en-GB | Free | 0 | — | 4.2.5 |
| TT | en-GB | Free | 0 | — | 4.2.5 |
| TZ | en-GB | Free | 0 | — | 4.2.5 |
| UG | en-GB | Free | 0 | — | 4.2.5 |
| VC | en-GB | Free | 0 | — | 4.2.5 |
| VE | es-MX | Free | 0 | — | 4.2.5 |
| VG | en-GB | Free | 0 | — | 4.2.5 |
| ZM | en-GB | Free | 0 | — | 4.2.5 |
| ZW | en-GB | Free | 0 | — | 4.2.5 |
Change log 29 changes · ZM
✎
releaseNotes updated
· Optimization for the latest iPhones and iPads, including iPhone 17 Pro Max, iPhone Air and iPad Pro.
· Metronome, A4 Calibration, Tuning fork and Settings (as
✎
description updated
Tune your double bass (contrabass) instantly with professional accuracy!
Perfect for orchestra, jazz, classical, and studio musicians.
• Displays exact pitch f
✎
subtitle updated
Accurate double bass tuning
✎
name updated
Double Bass Tuner Basic
◆
Version 4.2.5 released
· Optimization for the latest iPhones and iPads, including iPhone 17 Pro Max, iPhone Air and iPad Pro.
· Metronome, A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.2.4 released
· Optimization for the latest iPhones and iPads, including iPhone 17 Pro Max, iPhone Air and iPad Pro.
· Metronome, A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.2.3 released
Settings now unlocked for everyone
The app runs smoother and faster
Small improvements throughout
◆
Version 4.2.2 released
· Optimization for the latest iPhones and iPads, including iPhone 17 Pro Max, iPhone Air and iPad Pro.
· Metronome, A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.2.1 released
· Metronome and Chords Library are free for a limited time — enjoy them!
· Optimization for the iPhone 17 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning Fork and Settings (as In-App Purchases).
· Performance improvements and
◆
Version 4.2 released
· Metronome feature is free for a limited time — enjoy it!
· Optimization for the iPhone 17 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.1.7 released
· Optimization for the iPhone 17 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.1.6 released
· Optimization for the iPhone 17 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.1.5 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.1.4 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.1.3 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.1.2 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.1.1 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 4.1 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements and bug fixes
◆
Version 3.9.9 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9.8 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9.7 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9.6 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9.5 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9.4 released
· Optimization for the iPhone 16 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9.3 released
· Optimization for the iPhone 15 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9.2 released
· Optimization for the iPhone 15 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9.1 released
· Optimization for the iPhone 15 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.9 released
· Optimization for the iPhone 15 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements
◆
Version 3.8 released
· Optimization for the iPhone 14 Pro Max, iPad Mini and latest iPads.
· A4 Calibration, Tuning fork and Settings (as In-App Purchases).
· Performance improvements