Freedom251 › Musical Tuner Apps
insTuner

What insTuner is
insTuner is a chromatic tuner for instruments including guitar, bass, piano, bowed strings, brass, woodwinds and drums. It provides five modes: Instant Tuning, Fine-Tuning, Strobe Tuning, Spectrum (FFT) and Spectrogram. A note wheel displays the detected note and its octave. Fine-Tuning shows the note, cent deviation and frequency, while Spectrum analyzes frequencies and allows a logarithmic or linear X-axis. A built-in tone generator produces four waveforms to help users tune by ear. The free edition includes Instant-Tuning Mode and the tone generator. The paid plan costs $3.99, paid once and includes the Mac app, fine-tuning, historical curve tuning, the tone generator 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 the paid app can be bought once for use on iPhone, iPad and iPod Touch. EUMLab says it was founded in 2012 and is based in Hangzhou, China and Berlin, Germany.
Who it suits
insTuner suits musicians who tune different instrument types and want visual tuning modes or a tone generator. The free edition is limited to Instant-Tuning Mode and the tone generator.
What it does well
- Five tuning modes, including Strobe and Spectrogram
- Tone generator offers four waveforms
- Spectrum supports logarithmic and linear scales
What to know first
- Free edition includes only Instant-Tuning and tone generation
- Mac app requires macOS 10.9 or later
- Paid plan costs $3.99, paid once
Limits
The free edition includes Instant-Tuning Mode and the Tone Generator. The paid plan is listed at $3.99, paid once and adds the Mac app, fine-tuning, historical curve tuning and tuning settings.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| insTuner Free | Instant-Tuning Mode · Tone Generator | Free |
| insTuner | Mac app · Fine-tuning, historical curve tuning, tone generator and tuning settings | $3.99, paid once |
As eumlab.com lists them, read 4 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the insTuner website.
- Choose the free edition or the paid insTuner plan.
- Use an iOS device or a Mac; the Mac listing requires macOS 10.9 or later.
- For the paid plan, the maker says one purchase can be used on iPhone, iPad and iPod Touch.
- Contact [email protected] for support.
Verdict
insTuner offers several ways to read pitch, from a note display to spectrum analysis, alongside a tone generator. The free edition is narrower than the paid plan, which adds further tuning features and settings.
Questions
Is there a free plan?
Yes. insTuner Free costs nothing and includes Instant-Tuning Mode and the Tone Generator.
How much does the paid plan cost?
insTuner is listed at $3.99, paid once.
Which platforms does it support?
The listed platforms are iOS and macOS. The Mac App Store listing requires macOS 10.9 or later.
What does the paid plan include?
It includes the Mac app, fine-tuning, historical curve tuning, the tone generator and tuning settings.
Who makes insTuner?
EUMLab says it was founded in 2012 and is based in Hangzhou, China and Berlin, Germany.
How can I contact support?
The maker lists [email protected] as a contact address.
Facts from insTuner's own pages
- Apple devices
- The maker says the paid app can be bought once and used on iPhone, iPad and iPod Touch. · eumlab.com, 4 Oct 2026
- FFT analysis
- Spectrum (FFT) mode analyzes frequencies and lets users change the X-axis scale between logarithmic and linear. · eumlab.com, 4 Oct 2026
- Fine-tuning display
- Fine-Tuning mode displays the detected note, cent deviation and frequency. · eumlab.com, 4 Oct 2026
- Founded
- 2012 · eumlab.com, 28 Sept 2026
- Free edition
- insTuner Free includes Instant-Tuning Mode and the Tone Generator. · eumlab.com, 4 Oct 2026
- Headquarters
- Hangzhou, China and Berlin, Germany · eumlab.com, 28 Sept 2026
- Mac compatibility
- The Mac App Store listing says insTuner requires macOS 10.9 or later. · apps.apple.com, 4 Oct 2026
- Maker
- EUMLab says it was founded in 2012 and is based in Hangzhou, China and Berlin, Germany. · eumlab.com, 4 Oct 2026
- Note display
- The note wheel shows the note the tuner is hearing, with the octave displayed beneath the dial. · eumlab.com, 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, 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, 4 Oct 2026
- Support
- The maker lists [email protected] as a contact address. · eumlab.com, 4 Oct 2026
- Tone generator
- The built-in tone generator helps users tune by ear and produces four different waveforms. · eumlab.com, 4 Oct 2026
- Tuning modes
- The product page describes five modes: Instant Tuning, Fine-Tuning, Strobe Tuning, Spectrum (FFT) and Spectrogram. · eumlab.com, 4 Oct 2026
- Tuning settings
- The Mac listing states that users can change Concert A frequency, musical temperament and input source. · apps.apple.com, 4 Oct 2026
Where insTuner stands on Freedom251
- Musical Tuner Apps#15 of 32