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Every mix, measured.

Version history and review for audio mixes. Save every version and hear it measured, compare at matched loudness, and send the artist one link to listen, leave notes and approve.

Start freeSee how it works
Five saved versions of Night Drive, stacked like folders. Mix 12 is open in front at 1:52 of 3:41, measuring −13.7 LUFS with a true peak of −0.8 dBTP, compared with Mix 11 at matched loudness.

The artist’s side

One link or QR code. No app and no account.

From bounce to approved.

  1. Seconds

    First, save a bounce. Olith measures loudness, peaks, width and six streaming targets.

  2. A minute

    Then send one link or QR code to the artist.

  3. Their own time

    Next, the artist listens and leaves notes at a moment or over a section, typed or spoken.

  4. One tap

    Last, they approve or ask for changes. It all stays in one history.

Know what’s waiting.

Each project keeps every bounce, every note and the version the artist approved. The inbox shows what is waiting on you.

Exact, at a glance.

Measured in your browser

Integrated loudness per ITU-R BS.1770, sample and true peak, clipping, width and correlation.

A/B at matched loudness

Louder never wins by accident.

A link or a QR code

Reviewers never need an account.

Notes on the song’s own time

At a moment or over a section, typed or spoken.

Match loudness

One switch.

Six streaming targets

How far each one turns the mix down, and whether it raises a quiet one.

Headroom checks

Spotify suggests −2 dBTP above −14 LUFS.

Pricing

$0

2 GB of storage and files up to 250 MB. Unlimited projects, versions and reviewers. Review links with timed notes and approvals.

Start free

Reviewers never need an account or a plan.

$9a month

100 GB of storage. Everything in Free, plus lossless downloads on review links. Starts with 14 days free.

Start Pro monthly

Sign in, then choose Pro in your account. Reviewers never need an account or a plan.

$90a year

100 GB of storage. Everything in Free, plus lossless downloads on review links. Two months free, billed once a year.

Start Pro yearly

Sign in, then choose Pro in your account. Reviewers never need an account or a plan.

Questions

Do I need an account to start?

No. Drop a bounce and Olith measures it right away, and everything stays in this browser. Sign in to keep projects on your account and send review links that open on any phone or computer.

Does the artist need an account?

No. Reviewers open a link or scan a QR code, listen, leave notes and approve. They never need an account or a plan.

Is the analysis real?

Yes. Olith measures each version in your browser: integrated loudness per ITU-R BS.1770, sample and true peak, clipping, stereo width and correlation, and five tone bands.

Which streaming targets does it check?

Spotify, Apple Music, YouTube, Tidal, Amazon Music and Deezer. For each one Olith shows how far it turns your mix down, or whether it raises a quiet one. Only Spotify publishes its target; the others come from third-party guides.

How does the Pro trial work?

Pro monthly starts with 14 days free. Add a card at checkout and cancel in Billing before day 14 to pay nothing. Pro yearly is $90 a year and has no trial.

How big can my files be?

Files can be up to 250 MB on both plans. Free includes 2 GB of storage and Pro includes 100 GB.