Purpose-Built
A private audio-file loudness laboratory for integrated, short-term, and momentary LUFS, LRA, true peak, channel balance, batch comparison, targets, and reports.
One-time iPhone and iPad app
Loudgrain
Loudness and true peak
Core Features
- Analyze WAV, AIFF, CAF, M4A, and supported audio files
- Measure BS.1770-style integrated and gated loudness
- Inspect momentary, short-term, LRA, and true peak
- Compare albums, podcasts, stems, and deliverables
- Export CSV and PDF without changing source audio
Private by Design
No account, subscription, ads, tracking, third-party analytics, or developer-operated backend. Core features work offline, and your work stays on device unless you deliberately share or export it.
Use It Responsibly
Measurement and planning aid. Verify regulated broadcast or mastering deliverables with calibrated, validated tools and the applicable delivery specification.