Isolait started with one problem: pulling a single voice out of a noisy room, entirely on the phone, no server involved. Building that engine taught us something else — the same technology could turn overwhelming sound down, not just isolate it. Today the Isolait family is two apps, one shared on-device foundation, each built for a different relationship with sound.

Lock onto one voice in a noisy room, follow it, caption and translate it live, and clean up recordings in Studio — 100% on-device.
Explore Voice Isolation →
Turns overwhelming sound down instead of blocking it out — Live Dampening, Soundscapes, and one-tap caregiver presets for classrooms, cafeterias, and family gatherings.
Explore Sensory Comfort →
Made by JD Emerald Studios
They share one on-device engine but do different jobs. Voice Isolation helps you hear a person. Sensory Comfort makes the room easier to be in.
| Isolait — Voice Isolation | Isolait — Sensory Comfort | |
|---|---|---|
| Built for | Hearing one person clearly in a noisy room | When the noise itself is overwhelming |
| Who it's for | Anyone who needs to hear one person in a noisy room, including students and professionals | People with sensitive hearing or sound sensitivity, including many autistic and neurodivergent people, and the caregivers, parents and teachers who support them |
| How it works | Learns a voice (Voice Lock) or follows a direction (Direction Lock) and turns everything else down | Live Dampening turns harsh sound down in real time, while keeping voices clear |
| Locks onto one specific voice | — | |
| Live captions, translation & speaker names | Captions of the voice coming through, in your phone's language (new in 1.2). Translation and speaker names: Voice Isolation only. | |
| Studio: clean up recordings and video | — | |
| Soundscapes & one-tap caregiver presetsClassroom, grocery store, car | — | |
| Building ComfortGradually reduces dampening over sessions | — | |
| Works on | iPhone and iPad (iOS / iPadOS 18+) | iPhone and iPad (iOS / iPadOS 18+) |
| LanguagesSee all languages | 24 languages | 35 languages |
| Price (US)Prices vary by country; the App Store shows yours | Free with daily limits. Pro US$4.99/mo or US$39.99/yr | Free to download. Pro US$4.99/mo or US$44.99/yr |
| On-device, no account | ||
| Explore Voice Isolation → | Explore Sensory Comfort → |
Not sure? Both are free to download, so try them side by side. For a student in a noisy classroom, see which app to try first. Sensory Comfort is a sound-comfort tool only, not a medical device. It does not diagnose, treat, cure, prevent or manage any medical condition, including autism, ADHD, hyperacusis, misophonia or tinnitus.