Null

Features

Everything Null does, one take at a time.

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Switch

Flip between takes, in sync

Switch OG, A, and B instantly while it plays. You're judging the mix, not your memory of it.

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Search

Find any session, fast

Search across sessions and folders by name — no more scrolling to find the mix you’re after.

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Share

Share a session in one tap

Send a link so anyone can hear the take — no app required on the other end.

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Import

Import from your phone

No upload, no waiting on a connection — files save locally the moment you drop them in, ready whenever you are.

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Folders

Folders for the whole project

Group sessions together so a record’s rough mixes don’t get lost in a flat list.

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Focus mode

Focus mode

The player stays out of the way until you hit play — no artwork, no clutter, just the take.

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Analysis

Scope, BPM, key

Oscilloscope and goniometer views alongside BPM and key — detected the moment you drop a file.

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Level Match

Hear the mix, not the volume difference

Your ear reads louder as better, even when it isn't. Level Match brings every version to the same loudness, so switching never means reaching for the volume knob.

Web share

Send a comparison without the app

Upload versions right from usenull.app and get a link back — anyone can open it in a browser and A/B the takes, no app or account on either end.

Auto-align

Nudged intros line up automatically

A version that starts half a second later than the others isn't a fair A/B — Null finds each version's real start point and aligns playback, so switching never means hearing a stutter or a lag.

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Export

Get a version's file back out

Export any version straight to AirDrop, Files, or Messages — no computer or cable needed.

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Transport

Loop, seek, and rewind

Jump to the section you’re arguing about and loop it — it stays with you even after you step away to browse.