DaTuner
useprometheus.app
What it is
DaTuner is an Android chromatic tuner and metronome for tuning instruments, including guitar, bass, violin, ukulele, banjo, cello, piano, and mandolin. It works offline and is designed for noisy environments. Auto-sensitivity can start tuning without manual setup, and users can adjust sensitivity themselves. The display turns green when a pitch is within the optimal tuning range. Screen lock can hold a chosen note, while filter lock isolates a particular note range. Reference frequency can be adjusted manually or set with an external reference for orchestra tuning; the stated sample-rate range is 8kHz to 48kHz. The PRO version adds a strobe display with up to four overtones, transposition, custom temperaments, notation options, a harmonic pitch pipe, and an enhanced tuning algorithm. Google Play says the app may collect and share app information, performance data, and device or other IDs, and that data cannot be deleted. The privacy policy says microphone audio is processed on-device and not stored on company servers.
Spec sheet
- Purpose
- DaTuner is a chromatic tuner and metronome app for tuning instruments.Read 30 Sep 2026 · useprometheus.app
- Support
- Support is provided at [email protected].Read 30 Sep 2026 · useprometheus.app
- Headquarters
- Dover, Delaware, United StatesRead 28 Sep 2026 · useprometheus.app
- Audio handling
- The privacy policy says audio accessed through microphone permissions is used for app features, is not stored on the company's servers and is processed on the device.Read 30 Sep 2026 · useprometheus.app
- Audio range
- The stated sample-rate range is 8kHz to 48kHz.Read 30 Sep 2026 · useprometheus.app
- Data safety
- Google Play states that the app may collect and share app info, performance and device or other IDs, encrypts data in transit, and says data cannot be deleted.Read 30 Sep 2026 · play.google.com
- Lock controls
- Screen lock can hold a specific note and filter lock can isolate a specific note range.Read 30 Sep 2026 · useprometheus.app
- Offline use
- The app works offline and is designed to operate in noisy environments.Read 30 Sep 2026 · useprometheus.app
- Platform
- DaTuner is described as an Android app and is distributed through Google Play.Read 30 Sep 2026 · play.google.com
- Premium features
- The PRO version includes a strobe display with up to four overtones, transposition, custom temperaments, notation options, a harmonic pitch pipe and an enhanced tuning algorithm.Read 30 Sep 2026 · useprometheus.app
- Privacy scope
- The privacy policy addresses GDPR, Brazilian LGPD and California CCPA requirements.Read 30 Sep 2026 · useprometheus.app
- Reference frequency
- Reference frequency can be adjusted manually or with an external reference for orchestra tuning.Read 30 Sep 2026 · useprometheus.app
- Sensitivity
- Auto-sensitivity starts tuning without manual configuration, while sensitivity can also be fine-tuned manually.Read 30 Sep 2026 · useprometheus.app
- Supported instruments
- The app supports guitar, bass, violin, ukulele, banjo, cello, piano, mandolin and other instruments.Read 30 Sep 2026 · useprometheus.app
- Tuning display
- The screen turns green when the pitch is within the optimal tuning range.Read 30 Sep 2026 · useprometheus.app
Plans and prices
Free Free ads · fewer features than Premium Read 30 Sep 2026 · play.google.com
Premium Priced on request no ads · additional features Read 30 Sep 2026 · play.google.com
Strong points and limits
Strong points
- Works offline in noisy environments
- Supports a range of instruments
- Sensitivity can be automatic or manual
- Reference frequency can be adjusted
- PRO adds strobe and custom temperaments
Limits
- Available only on Android
- Free plan includes ads and fewer features
- Google Play says collected data cannot be deleted
Who it suits
DaTuner suits musicians who want an offline Android tuner for a range of instruments, with adjustable sensitivity and reference frequency. Its PRO features may suit players who need strobe tuning or custom temperaments.
Verdict
DaTuner combines chromatic tuning and metronome functions with note-hold and range-filter controls. Check the Premium price and the app's stated data practices before choosing a plan.
Where Specifiction places it
- Musical Tuner Apps#13 of 327.8
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