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LunaTuna
Hamburg, Germany
What it is
LunaTuna is a chromatic tuner for iOS, with Mac support on computers using an M1 or newer chip. Its free plan provides chromatic tuning without ads, and the maker describes the app as about 1 MB. It can tune guitar, violin, cello, bass, kalimba, ukulele, saxophone and other instruments. You can adjust the 440 Hz reference frequency. The optional Extension Pack costs $2.99, paid once and adds common and custom tunings, transposition, an in-tune precision setting, 14 additional color ways, dark mode support and alternate temperaments. Bass cut is enabled by default, so C#2 or lower requires turning it off; the extension automatically ignores bass cut for tunings with low notes. The maker recommends a quiet setting and placing the microphone near low-output instruments. App Store compatibility lists iOS or iPadOS 14 and macOS 11 with M1 or later.
For and against
For
- Free chromatic tuning without ads
- Supports many string, woodwind and folk instruments
- Adjustable 440 Hz reference frequency
- Extension Pack adds custom tunings
- Works on M1-or-newer Macs
Against
- Extension Pack costs $2.99, paid once
- Bass cut needs adjustment for C#2 or lower
- Quiet surroundings help pitch detection
- Mac support requires an M1 chip or later
The verdict
LunaTuna covers chromatic tuning with a free, ad-free core and broad instrument support. The Extension Pack adds deeper tuning controls, while low notes and noisy environments require attention.
Who it suits
LunaTuna suits musicians who need ad-free chromatic tuning across iPhone, iPad or compatible Macs. It also fits players working with multiple instruments or alternate tunings.
Plans and prices
Free
Chromatic tuning · no ads
Read 8 Oct 2026 · krisdigital.com
Extension Pack
App Store lists in-app purchase “All the things!” for $2.99; maker describes optional extension features
Read 8 Oct 2026 · apps.apple.com
On the record
- Ad-free use
- The maker says chromatic tuning is free and has no ads.krisdigital.com · read 8 Oct 2026
- Apple silicon
- The maker says LunaTuna works on Macs with M1 or newer chips.krisdigital.com · read 8 Oct 2026
- App size
- The maker describes the app as about 1 MB in size.krisdigital.com · read 8 Oct 2026
- Compatibility
- The App Store lists compatibility with iPhone and iPad on iOS or iPadOS 14 or later, and Mac on macOS 11 or later with an M1 chip or later.apps.apple.com · read 8 Oct 2026
- Extension features
- The optional Extension Pack adds common and custom tunings, transposition, an in-tune precision setting, 14 additional color ways, dark mode support and alternate temperaments.krisdigital.com · read 8 Oct 2026
- Instruments
- The maker says the tuner also works with instruments including violin, cello, bass, kalimba, ukulele and saxophone.krisdigital.com · read 8 Oct 2026
- Low-frequency limit
- Bass cut is enabled by default, so users tuning C#2 or lower should turn it off; the maker says the extension automatically ignores bass cut for tunings with low notes.krisdigital.com · read 8 Oct 2026
- Microphone guidance
- For low-output instruments such as unplugged electric guitars, the maker recommends moving the microphone close to the strings, especially for low notes.krisdigital.com · read 8 Oct 2026
- Privacy disclosure
- Apple's App Store page says the developer indicates the app does not collect data; Apple says this information has not been verified by Apple.apps.apple.com · read 8 Oct 2026
- Purpose
- LunaTuna is a chromatic tuner for iOS.krisdigital.com · read 8 Oct 2026
- Reference frequency
- Users can change the 440 Hz base frequency.krisdigital.com · read 8 Oct 2026
- Support
- The maker invites users to contact them for support and asks them to include their device, iOS version and instrument.krisdigital.com · read 8 Oct 2026
- Tuning conditions
- The maker recommends a silent environment because noise makes pitch detection harder.krisdigital.com · read 8 Oct 2026
