LUMEN — Loudness Meter
Loudness, true peak & visuals
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
LUMEN is a broadcast-grade loudness meter that fits in your pocket — and a second screen for your studio.
LIVE: point your phone at the speakers and read LUFS (momentary, short-term, integrated), true peak, loudness range, PSR, PLR, correlation and a live spectrum, with targets for streaming, Apple, club and EBU R128. Mic-distance compensation keeps room readings honest.
INSTRUMENTS: thirteen full-screen meters that count — spectrum analyser with peak hold and pink reference, loudness with target band and 30-second history, true peak with headroom, goniometer and correlation, dynamics (PSR) with zones, tonal balance by band, spectrogram, level history, crest factor, a VU with real ballistics, stereo width and balance, and a loudness histogram. Thirteen palettes. Freeze, reset, full screen.
LUMEN PRO (one-time purchase) adds:
LINK: run the LUMEN plugin in your DAW and the app becomes the session's big meter display over Wi-Fi — no cables, no setup, and nothing leaves your network.
SCENES: fourteen line-drawn, audio-reactive worlds driven by the real analysis — terrain, radial, orbits, halo, aurora and more. Built for the iPad on the desk and the wall across the room.
MY SCREEN: build your own meter wall of 1 to 6 tiles, any instrument or scene in each, each in its own colour.
FILE: analyse any track from Files or iCloud for the definitive numbers.
Already own the LUMEN plugin from Echelon Audio? Sign in to use Pro.
Measured on-device. No ads, nothing uploaded.
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The developer, Echelon Audio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
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Information
- Seller
- Echelon Labs LLC (Apps)
- Size
- 4.6 MB
- Category
- Music
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- LUMEN Pro $12.99
- Copyright
- © 2026 Echelon Labs LLC