LevelLab by AudioLab.tools

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Everyone
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Everyone
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About this app

Is your mix loud enough for streaming, without clipping?

LevelLab measures the loudness of your bounce the way a mastering engineer does: integrated LUFS, true peak (dBTP) and loudness range (LRA). It compares your file against the targets that matter, Spotify, Apple Music, YouTube and more, and tells you in plain words whether you are on spec.

Two ways to measure:
- File: pick an exported bounce for the exact number, with no mic in between. This is the measurement a DAW reads.
- Live: hold the phone to a speaker for a quick, relative read of balance and dynamics.

What you get:
- Integrated LUFS, plus short term and momentary
- True peak in dBTP
- Loudness range (LRA)
- Loudness over time, so you see where it runs hot or quiet
- Pass or fail against each streaming target
- What you fed it: WAV 24-bit, or MP3 at 191 kbps, shown at a glance

Make it upload-ready: one tap applies the exact gain to your target and a true-peak limiter keeps the peaks under the platform ceiling. Out comes a 16-bit (dithered) or 24-bit WAV, your original untouched.

Built on EBU R128 and ITU-R BS.1770. Everything runs on your device: files are measured locally and sent nowhere, and there is no account. The one thing that can leave is anonymous usage stats, off by default, which you can switch on or off in Settings.

Free to check, with a loudness timeline you can scrub, and your first shareable PDF report is free. Pro (one time) adds unlimited reports, album mode (measure a whole album and normalise it in one go, per track or with the balance kept), A/B against a reference track at matched loudness (the way mastering engineers compare, without the louder-sounds-better trap), side-by-side compares, your own logo on the report and CSV export.

by AudioLab.tools
Loudness for streaming: LUFS, true peak and LRA vs Spotify, Apple, YouTube.
Updated on
Sep 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    App activity, App info and performance, and Device or other IDs
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

LevelLab 0.4.3: after a few files the app now sums up what you have measured, and asks once in a while whether LevelLab has been any good. Measuring stays free and unlimited. The content rating questionnaire and the store description are both up to date on the one-time Pro purchase and on the anonymous usage stats you switch on yourself.