LOUDMETER vs LUFS SLIDER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LOUDMETER
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LOUDMETER brings loudness analysis to your iPhone and iPad. Check a finished bounce wherever you are, or use your device as a second screen for your Mac’s live meters. ANALYZE AUDIO FILES Open or drop an MP3, WAV, AIFF, FLAC, or M4A file to see: • Integrated LUFS, plus Short-Term and Momentary maxima • True Peak in dBTP, with an over count • Loudness Range and Peak to Loudness Ratio • Stereo correlation and a loudness timeline • Reference targets for Spotify, Apple Music, YouTube, Netflix, and EBU R128 Copy your measurements or export a PNG report. All analysis runs on your device. MIRROR YOUR MAC Connect to LOUDMETER running on a Mac on the same local network. View live measurements on your phone or tablet and reset the Mac’s meters remotely. The connection uses Bonjour. Only measurement and visualization data are transmitted, never your audio. BUILT FOR MIXING AND MASTERING Loudness measurement is based on ITU-R BS.1770-5 and EBU R128, with K-weighting adapted to each file’s sample rate. PRIVATE BY DESIGN No account, tracking, or analytics. Audio processing stays on your device, and live readings stay on your local network. Questions or feedback? loudmeter.okancam.co
LUFS SLIDER
Adjust LUFS values for mastering audio with individual compressor, limiter, and gain controls. Features a versatile equalizer with simple or 12-band modes and includes presets for efficient workflow.
- LUFS value adjustment
- Individual compressor, limiter, gain controls
- Presets included
- Simple LOW, MID, HIGH EQ
- 12-band EQ mode
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マスタリングではLUFS値を調整できるのが特徴です。コンプレッサー、リミッター、ゲインの調整を個別できる他、プリセットも搭載しています。 イコライザーはシンプルなLOW、MID、HIGHの他、12バンドのモードと切り替え出来ます。 Mastering is characterized by the ability to adjust the LUFS value. In addition to being able to adjust the compressor, limiter, and gain individually, it is also equipped with presets. In addition to the simple LOW, MID, and HIGH, the equalizer can switch between 12-band modes. The equalizer can simply adjust LOW, MID, and HIGH.
Screenshots
Verdict
The clearest difference is price: LOUDMETER at Free against LUFS SLIDER's $0.49. LOUDMETER also leads on iOS requirement (17.0 vs 26.5). LUFS SLIDER's advantage is update cadence (every 4 days vs every 2 weeks). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
LOUDMETER is free to download; LUFS SLIDER costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.
LOUDMETER ships an update every 2 weeks, LUFS SLIDER every 4 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.
| Parameter | LOUDMETER | LUFS SLIDER |
|---|---|---|
| Price | Free — better | $0.49 |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | OKAN CAM | YUKIO TOKIWA |
In-app purchases
LOUDMETER
No in-app purchases
LUFS SLIDER
No in-app purchases









