$0.99 local-first iPhone and iPad app

Echoroom

Measure room reverb

Tap once to estimate room RT60, see a decay curve, and save local acoustic measurements.

What it does

Core utility

Estimate room reverb time and save local acoustic measurements.

Local by design

Measurements, decay curves, notes, and settings are stored locally on device. Audio recordings are not saved. No developer backend is included in version 1.0.

One-time purchase

$0.99 paid app. No subscription is required.