Howli

Turn one voice into a harmony video.

Learn each part with pitch cues, record the layers, and watch the full stack come together on your iPhone.

Download on the App Store

Android coming soon.

Howli practice screen with hear it and sing it controls Howli stacked voice video grid with four harmony parts Howli song picker with built-in song choices
Guided harmony recording

From one voice to a finished stack.

01

Pick a song

Choose a built-in song or paste a custom song code when you want to bring your own vocal guide.

02

Sing your part

Hear the line, follow pitch and lyric cues, and keep the take that feels strongest for each harmony layer.

03

Finish the stack

Howli combines your best takes into a choir-style video with every harmony layer in place.

Custom songs

Bring your own harmonies into Howli.

Create a guide for each vocal part. Howli turns it into a code you can paste into the app and sing.

Make a custom song in Howli
Howli song picker with custom song code entry
FAQ

Details for singers.

Howli is built for learning vocal parts, recording layers, and keeping recordings under your control.

What is Howli?

Howli is a free guided harmony singing app for singers who want to practice parts, record vocal layers, and turn one voice into a full vocal stack.

How does guided harmony recording work?

You hear one part, sing with pitch and lyric cues, save the best take, and repeat until the full harmony stack comes together.

Can I make custom songs?

Yes. Create a guide for each vocal part. Howli turns it into a code you can paste into the app and sing.

Where are recordings stored?

Recordings are processed and stored on your device. You stay in control of recordings and finished videos.