How to Autotune Your Voice on iPhone (Free, in Under a Minute)

You don't need a studio, a laptop, or a $400 plugin to autotune your voice. Your iPhone and a free app can pitch-correct a vocal in seconds — here's exactly how.

What autotune actually does

“Autotune” is the everyday name for automatic pitch correction — technology that analyzes the notes you sing and gently pulls each one to the nearest "correct" note in a musical key. Set it subtle and nobody knows it's there — your voice just sounds confident and in tune. Crank it up and you get the iconic hard-tuned effect you hear all over modern pop and hip-hop.

How to autotune your voice on iPhone: step by step

Download Voice Tune. Voice Tune – Auto Recorder is free on the App Store and works on iPhone and iPad.
Record your voice. Tap the red record button and sing. The live pitch circle shows the exact note you're hitting (like C3) as you sing — useful feedback even before any tuning.
Open Tune Voice. When you stop recording, tap Next and open the Tune Voice panel.
Pick a scale type. Choose Major for most pop songs, Minor for moodier tracks, or Chromatic if you're not sure of the key (it corrects to the nearest of all 12 notes). Pentatonic and Blues scales are there too for melodic rap and R&B.
Pick the root key. Select the key of your song (C through B). If you sang a cappella, try a few keys with Preview until it sounds right.
Dial in Strength, Smoothness, and Mix. Strength controls how hard notes snap to pitch. Smoothness controls how naturally your voice glides between notes. Mix blends the tuned voice with the original.
Preview, then Apply. Tap Preview to hear it, tweak the dials, then Apply. From there you can add reverb, EQ, or De-Noise and share the result.

Voice Tune pitch correction settings on iPhone — scale type, root key, and strength dials

Settings cheat sheet

Natural correction (nobody can tell): Strength 40–60%, Smoothness 60–80%, Mix 100%.
Modern pop polish: Strength 70–85%, Smoothness 40–60%, Mix 100%.
Hard T-Pain tune: Strength 100%, Smoothness 0–15%. Full recipe in our T-Pain effect guide.

Pro tip: If the tuning sounds "wobbly" or jumps to wrong notes, your scale or key is probably wrong — switch to Chromatic, or try shifting the root key up or down until the melody locks in.

Common questions

Do I need to know the key of my song?

No. The Chromatic scale corrects to the nearest of all 12 notes, which works without knowing the key. Knowing the key just makes the correction tighter and more musical.

Can I autotune over a beat or backing track?

Yes — import a non-DRM track from your Music library, record your voice over it, then tune just your vocal. See how to record yourself singing on iPhone.

Is it really free?

Voice Tune is free to download and the core record → tune → share flow is free to use. Some advanced effects are premium. More in our free pitch correction app guide.

Tune your first recording now

Free on the App Store. Record, tune, and share in under a minute.

Download Voice Tune Free