In a crowded room, isolait finds the one voice you came for, follows it, captions it, and remembers it next time — all without a single byte leaving your phone.
The same walkthrough that's built into the app — two voices talking at once, then one voice, alone.
"Hey are we still on for coffee tomorrow morning? I was hoping nine, maybe ten o'clock would work for you."
"So, then he told me the meeting got moved to Thursday. Now I have to rearrange my entire afternoon."
Watch what happens to each line above
This loops automatically — the real app times it to your own voice, not a fixed clock.
Every feature runs locally on Apple's Neural Engine — there's no server in the loop, no upload, and no delay.
Tap the mic to sample any voice nearby. Isolait captures a unique voice fingerprint in seconds, then locks onto that speaker — filtering out background noise and every other conversation in the room.
Point your phone at the person you want to hear. Isolait blends your device's heading with real-time audio processing to bias toward your target, even in crowded, multi-speaker environments.
Watch your audio environment come alive with a real-time visualizer — see exactly what's coming in, and exactly what isolait is sending back out.
Watch the locked-in voice turn into text as it's spoken — transcribed entirely on-device, in real time, with nothing sent anywhere to make it happen.
Lock a voice once and keep it. Isolait remembers the voices that matter so you can drop back into a lock in a tap, no re-sampling required.
Switch between your iPhone's mic, AirPods, or any connected Bluetooth headset right in the app — isolait detects what's available and adapts to whichever one you're using.
See who's locked in and control isolait right from your lock screen or AirPods — no need to keep the app open or your phone unlocked.
Say "Hey Siri, start listening" to lock in hands-free, or tap a Home Screen widget to jump straight into a lock — isolait meets you wherever you already are.
Isolait runs entirely on-device using Apple's Neural Engine. No audio is ever uploaded, stored, or shared — what you hear stays with you, full stop.
Most "AI" voice tools mean a round trip to a server. Isolait's neural pipeline runs entirely on your iPhone — your audio is processed and discarded locally, every time.
V1.1 is out — the core engine got sharper, and a whole layer of new capability shipped alongside it.
A live audio pipeline separates voice-range signal from ambient noise as it happens — no lag, no buffering.
Once locked, isolait holds onto that speaker's fingerprint through movement, crosstalk, and changing background noise.
Every word from your locked-in voice appears as text in real time — transcribed on your phone, never sent anywhere else.
Pick between your iPhone's built-in mic, AirPods, or any connected Bluetooth headset — isolait detects what's plugged in and lets you switch on the fly.
Build a personal library of voices you've locked before, and drop back into them instantly — no re-sampling required.
Lock screen and AirPods controls let you see who's locked in and pause or resume without unlocking your phone. Say "Hey Siri, start listening" for a hands-free lock, or tap the Home Screen widget to jump straight in.
A live confidence meter shows the strength of your lock in real time, so you always know how well isolait has your voice.
Your phone's heading helps bias toward whoever you're physically facing — useful the moment you walk into a noisy room.
The core engine is just the beginning. We're building toward something bigger — and every chapter ships when it's ready, not before.
A guided first launch and per-device tuning, so isolait locks in perfectly whether you're on your phone's mic or your headphones.
Isolait starts understanding more than just one voice at a time.
The same engine, built to go wherever your voice needs to follow.
Want in early? Every App Store update is the fastest way to find out first.
Free to download. Works the moment you open it — no account, no setup, no audio ever leaving your phone.
Download on the App Store