SOUND THAT SELLS
It sounds like a studio, recorded at your desk.
Thin, roomy, uneven audio is what makes a good video feel cheap, and it is the part most people have no idea how to fix. Polish Voice denoises, de-esses, compresses and normalises in one pass, music ducks under your voice on its own, and there is a sound effect ready for every cut instead of a folder of downloads you have to go and find.
Zella for Mac is coming to the Mac App Store, and Zella for iPhone is out now on the App Store. One Pro purchase covers both. See the mobile app →
WHAT CHANGES FOR YOU
- 01
The fix you did not know you needed
Five studio tones sit on one broadcast-clean foundation, so the difference between your recording and a podcast is one button. This is the highest-return control in the app and almost nobody expects it to be.
- 02
Music that does not fight your voice
Auto-Duck dips the bed under speech and swells it back automatically. You stop riding a volume envelope by hand, and you stop choosing between an audible voice and a track anyone can actually hear.
- 03
A sound for every cut, already there
Forty-three built-in effects on the Mac (thirty on iPhone) and sixteen voice changers, with no files to hunt down and no licence to check. Beat Sync puts cuts and punches on the kick, snare or hats when you want the edit to feel scored rather than merely timed.
ON BOTH PLATFORMS
What it does on each device.
On Mac
43 built-in sound effects, 16 voice changers, music with Auto-Duck, and Polish Voice with five studio tones on one broadcast-clean foundation. Beat Sync pulses zooms and effects to the beat, tuned per drum band. Detach and reattach audio, J and L cut timing and per-clip volume are all free.
Get it on iPhone →On iPhone
43 sound effects, 16 voice changers, music with Auto-Duck and five studio voice tones - all behind one Audio button in the timeline, together with clip and overlay levels. Per-band Beat Sync is there when you want it, and never applied for you.
Everything the mobile app does →
Same project either way. Hand it across as a .zella file and the clips, cuts,
captions, titles, callouts and effects come with it.
Mac and iPhone, side by side →
THE PROOF
The specifics behind the promise.
- 43 built-in sound effects on the Mac and iPhone - whooshes, pops, risers, impacts and UI clicks, no files to hunt down
- 16 voice changers (chipmunk, robot, echo, reverb, megaphone and more)
- Music with Auto-Duck - the track dips under your voice, then swells back automatically
- Beat Sync pulses zooms and effects to the kick, snare or hats, tuned per band
- Polish Voice with five studio tones - Natural, Warm, Bright, Podcast and Cinematic voicings on one broadcast-clean foundation
- Detach / reattach audio and J/L-cut timing
WHEN THIS MEETS A PAID CEILING
The sound library, the voice changers, Auto-Duck and Polish Voice are free on both platforms. Pro adds per-drum Beat Sync as part of the depth toolset, which is what lets you put cuts on the kick and accents on the snare separately.
Everything else is free forever: the complete editor, all the AI, unlimited recording, and watermark-free export up to 2 minutes at up to 1080p. 1080p is free permanently, and a free export is never stamped. Pro is $89 once and covers Mac and iPhone on a single purchase, and every new install runs the full Pro set for its first 7 days with no card and nothing to cancel. See pricing →
SEE IT DOING A REAL JOB
Who uses this, and for what.
One recording, a week of clips.
Turn a long conversation into short vertical clips with captions, without scrubbing the timeline hunting for the good bit.
Read the workflow → Musicians & performersCut a performance to the beat, automatically.
Beat Sync reads the track and puts your cuts and punches on the beat, so a performance clip feels edited to the music rather than near it.
Read the workflow → Coaches & consultantsVideo that sells the expertise before the call.
Record the free lesson, the audit walkthrough or the follow-up, and send something that sounds like the person the client is about to hire.
Read the workflow →GO DEEPER
One guide per feature.
Music and auto-ducking
A bed under your voice that gets out of the way on its own, and where to get one.
Sound effects, beat sync and voice changers
The 43 built-in effects, cutting on the kick, and 16 ways to change a voice.
Levels, voiceover and J/L cuts
Per-clip volume, recording over picture, and letting audio lead the cut.
Sound design at your cuts
Whoosh, impact and riser under a cut, and how many is too many.
Local. Private. One-time price.
macOS 14 Sonoma+ · iPhone on iOS 18+ · Local-only · No cloud