Octave Challenge: High Note

Octave Challenge is a fun high note meter for karaoke, singing practice, parties, and casual vocal challenges.

Open the app, tap Start Challenge, sing into your microphone, and see your note, octave, and frequency in real time. Try to hit a higher note, hold it longer, and beat your personal best.

This app is made for everyone, not just musicians. Whether you are singing at home, in a karaoke room, or with friends, Octave Challenge makes it easy to check how high you can sing.

Main features:

• Real-time pitch detection
See your current note, octave, and frequency while you sing.

• High note challenge
Track your highest detected note during each session.

• Hold time and stability
Check how long you held your note and how stable it was.

• Record your challenge
Save your singing sessions as recordings on your device.

• Recording playback
Listen to your saved recordings anytime.

• Challenge history
Review your recent challenges, highest notes, hold times, and progress.

• Do Re Mi support
Show note names with helpful solfege labels such as Do, Re, Mi, Fa, Sol, La, and Ti.

• Share your result
Create a result card and share your high note challenge with friends.

• Simple global design
Clean, dark, karaoke-friendly UI designed for quick use anywhere.

Octave Challenge does not provide songs, lyrics, karaoke tracks, or backing music. It only uses your device microphone to detect and record your own singing when you choose to start a challenge or recording.

Your recordings and challenge history are stored locally on your device unless you choose to share or export them.

Optional Pro features may include removing ads, unlimited recordings, and backup/export options.

Octave Challenge is for casual entertainment and personal singing challenges. It is not a medical, healthcare, diagnostic, or professional vocal training app. Pitch and octave results may vary depending on your device microphone, background noise, and singing environment.

Try Octave Challenge and see how high your voice can go.

Recent changes:
Initial release of Octave Challenge.

• Detect your singing note, octave, and frequency in real time
• Challenge your highest note
• Track hold time and stability
• Record and play back singing sessions
• Save local challenge history
• Show Do Re Mi solfege labels
• Share high note result cards
• Simple dark karaoke-friendly design