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insTuner
Hangzhou, China and Berlin, Germany
What it is
insTuner is a chromatic tuner for instruments including guitar, bass, piano, bowed strings, brass, woodwinds and drums. It offers Instant Tuning, Fine-Tuning, Strobe Tuning, Spectrum (FFT) and Spectrogram modes. A note wheel identifies the note being heard and shows its octave; Fine-Tuning also displays the note's cent deviation and frequency. Spectrum mode analyzes frequencies, with a choice of logarithmic or linear X-axis scaling. The built-in tone generator produces four waveforms for tuning by ear. The free edition includes Instant-Tuning Mode and the tone generator. The paid insTuner plan is $3.99, paid once and includes the Mac app, fine-tuning, historical curve tuning, tone generation and tuning settings. Settings include Concert A frequency, musical temperament and input source. The Mac App Store listing requires macOS 10.9 or later. The maker says its paid app can be bought once for use on iPhone, iPad and iPod Touch. EUMLab lists its founding year as 2012 and bases in Hangzhou, China and Berlin, Germany.
For and against
For
- Five tuning modes, including Strobe and Spectrum
- Tone generator offers four waveforms
- Free edition includes Instant Tuning and tone generator
- Fine-Tuning displays cent deviation and frequency
Against
- Free edition includes only Instant-Tuning Mode and tone generator
- Mac app requires macOS 10.9 or later
The verdict
insTuner combines several tuning displays with a tone generator, with a limited free edition and a paid Mac plan. Consider the listed platform and edition details against the modes and settings you need.
Who it suits
It suits musicians who need a chromatic tuner for varied instruments and want tuning by ear or through visual modes. The free edition may suit users who need Instant Tuning and a tone generator.
Plans and prices
insTuner Free
Instant-Tuning Mode · Tone Generator
Read 4 Oct 2026 · eumlab.com
insTuner
Mac app · Fine-tuning, historical curve tuning, tone generator and tuning settings
Read 4 Oct 2026 · apps.apple.com
On the record
- Apple devices
- The maker says the paid app can be bought once and used on iPhone, iPad and iPod Touch.eumlab.com · read 4 Oct 2026
- FFT analysis
- Spectrum (FFT) mode analyzes frequencies and lets users change the X-axis scale between logarithmic and linear.eumlab.com · read 4 Oct 2026
- Fine-tuning display
- Fine-Tuning mode displays the detected note, cent deviation and frequency.eumlab.com · read 4 Oct 2026
- Free edition
- insTuner Free includes Instant-Tuning Mode and the Tone Generator.eumlab.com · read 4 Oct 2026
- Mac compatibility
- The Mac App Store listing says insTuner requires macOS 10.9 or later.apps.apple.com · read 4 Oct 2026
- Maker
- EUMLab says it was founded in 2012 and is based in Hangzhou, China and Berlin, Germany.eumlab.com · read 4 Oct 2026
- Note display
- The note wheel shows the note the tuner is hearing, with the octave displayed beneath the dial.eumlab.com · read 4 Oct 2026
- Privacy disclosure
- Apple's listing says the developer has not provided details about its privacy practices and data handling to Apple.apps.apple.com · read 4 Oct 2026
- Purpose
- insTuner is a chromatic tuner for instruments of all kinds, including guitar, bass, piano, bowed strings, brass, woodwinds and drums.eumlab.com · read 4 Oct 2026
- Support
- The maker lists [email protected] as a contact address.eumlab.com · read 4 Oct 2026
- Tone generator
- The built-in tone generator helps users tune by ear and produces four different waveforms.eumlab.com · read 4 Oct 2026
- Tuning modes
- The product page describes five modes: Instant Tuning, Fine-Tuning, Strobe Tuning, Spectrum (FFT) and Spectrogram.eumlab.com · read 4 Oct 2026
- Tuning settings
- The Mac listing states that users can change Concert A frequency, musical temperament and input source.apps.apple.com · read 4 Oct 2026
