Maestro: Tuner & Metronome
Tuner, metronome & practice
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
A studio-grade tuner and metronome that finally looks the part. Buttery 60fps needle, sample-accurate click, haptic tempo — tune in two taps.
Maestro is the most beautiful way to tune, keep tempo, and build a daily practice habit — a studio-grade instrument that finally looks and feels as good as it sounds.
Built natively for low-latency audio, Maestro detects pitch in real time and drives a buttery 60fps needle, a calm in-tune color cue, and a sample-accurate metronome click. No lag, no clutter — just the tools serious players reach for every day.
A PRECISION TUNER
• Real-time chromatic pitch detection — fast, stable, accurate
• Instrument presets: guitar, bass, violin, ukulele, brass, voice
• Cents needle + strobe view + a green "locked" cue when you nail it
• Haptic tick the moment you hit the note — tune without watching
• Alternate tunings, transposition, and adjustable A4 (415–466 Hz)
A ROCK-SOLID METRONOME
• Sample-accurate click that never drifts
• Tap-tempo, subdivisions, accents, and custom time signatures
• Haptic tempo pulse you can feel through the table or your pocket
• Count-in and tempo setlists for working through a piece
A PRACTICE HABIT THAT STICKS
• Drone / tone generator for ear training and intonation
• Practice timer with an honest day streak
• Session log: time practiced, % in tune, tempos mastered
• Insights charts that show your progress over time
DESIGN-FIRST
Deep charcoal surfaces, a single precise green in-tune cue, instrument-grade gauges, and one clean grotesk typeface — a polished, dark, studio-grade interface. Open the app and you're tuning in two taps.
PRO
Maestro is free to use as a chromatic tuner and basic metronome. Maestro Pro unlocks instrument presets, alternate tunings & temperaments, the drone generator, every tuner gauge, full practice insights, and CSV/PDF export — a one-time $4.99 unlock. No ads, ever.
Tune in. Keep time. Practice better.
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The developer, Lumen Labs, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- NOVA-LUMEN LABS LLP
- Size
- 15.6 MB
- Category
- Music
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Maestro Pro $4.99
- Copyright
- © 2026 Lumen Labs