Apps Like E-Tuner 4 for iPhone and iPad
Tune ECU settings via Bluetooth
Manage and live-tune ECU settings like air-fuel ratios, ignition timing, and idle speed via Bluetooth. Monitor engine and sensor data in real-time. Use the Setup Wizard to select base calibrations for Pro-Flo 4 EFI systems.
E-Tuner 4 screenshots
Ranked alternatives
Showing 21–40 of 1,000 ranked alternatives.


Tunable – Tuner & Metronome
Seth Sandler
Practice music with tuners and metronomes
Track playing habits and provide feedback to improve performance. Use a chromatic , tone and chord generator, , and recorder. Practice ear training, rhythm, timing, and dynamics. Sync with Apple Health for progress tracking.

Ukulele Tuner - LikeTones
Vladislav Sonkin
Tune with precision and accuracy
Tune ukuleles with high-precision tuning using a professional algorithm. Play real instrument sounds for reference. Adjust string tension and detect out-of-tune notes. Save tuning presets and share results.

Dakota Digital
Dakota Digital, Inc.
Customize dash layouts and calibrate sensors
Configure vehicle display settings with customizable colors and themes. Calibrate gauges and set warning thresholds. Use GPS for speedometer calibration. Access real-time sensor data for diagnostics. Arrange gauge layouts in programmable groups.

Pitched Tuner - Tuning App
Stonekick Limited
Tune instruments with microphone input
Tune instruments using a microphone. Detect pitch and display visual feedback. Adjust for different instruments including ukulele, guitar, violin, and flute. Set reference tones and track accuracy. Save and recall custom settings.

Guitar Tuner - GuitarTunio
Hung Nguyen
Tune instruments with precision
Tune stringed instruments with visual and audio indicators. Select from over 200 tunings for guitars and other instruments. Adjust pitch manually or use auto-tune. Save custom tunings and access them quickly. Sync with iOS devices for precise tuning.

Violin Tuner - LikeTones
Vladislav Sonkin
Tune violins with precision and accuracy
Tune violins with high precision using a professional algorithm. Play real instrument sounds for accurate reference. Adjust tuning settings and save custom preferences. Share tuning results and track progress over time.





A–440: Pro Tuner Tuning Fork
Paul Richardson
Tune instruments with single tap
Tune instruments with single tap. Adjust frequency between 435–445 Hz. Set up Siri Shortcuts for quick access. Save shortcuts to Home Screen, Dock, and Shortcuts Widget. Supports –440 and –443 .

Ukulele Tuner & Chords
Pedro Daniel Macalupu Cumpen
Tune ukuleles with frequency display
Tune ukuleles with auto-tuning and frequency display. Supports multiple sizes including soprano, concert, tenor, and baritone. Includes LED pitch indicator, built-in , and metronome. Available for iPhone and iPad.

Airyware Tuner - strobe & more
Sergey Konvisarov
Tune instruments with precision and accuracy
Tune instruments with real-time pitch detection and 0.1-cent accuracy. Support for string, brass, woodwind, and percussion instruments. Includes tuning mode, waveform inspection, and noise reduction. Calibrate to live sound or A4 standard.

Cifra Club
Studio Sol Comunicacao Digital LTDA
Play guitar, bass, keyboard, and ukulele chords
Access guitar, bass, keyboard, and ukulele chord charts and tabs. Learn to play songs from various genres. Download free chords and tabs for practice. Track progress and explore new music. Share arrangements with other users.




Acoustic Guitar Tuner Pro
Pedro Daniel Macalupu Cumpen
Tune with precision and speed
Tune strings with real-time frequency display in Hz. Use A4 calibration and tuning fork for accurate pitch. Load presets instantly for quick tuning. Adjust sensitivity and settings via in- purchases.

LunaTuna - Guitar Tuner
Christopher Frank
Tune with visual feedback
A chromatic that aligns two dots for accurate tuning. Works in landscape and portrait modes on iPhone and iPad. Includes an adjustable base frequency from 440Hz. Requires holding the mic close for silent instruments.
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