In a crowded room, isolait finds the one voice you came for — and quiets everything else. Real-time. On-device. It never leaves your phone.
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 acoustic 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 the mic toward your target, even in multi-speaker environments.
Watch your audio environment come alive with a dual-channel spectrum analyzer — see exactly what's coming in, and exactly what isolait is sending back out.
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's Neural Engine — your audio is processed and discarded locally, every time.
isolait is built on one core engine: an on-device pipeline that captures a voice fingerprint and isolates it from everything else, in real time, without a server in the loop. Every release adds capability on top of that same foundation — nothing gets rebuilt from scratch.
The first release proved the full pipeline end-to-end on a real iPhone, in real noise — rule-based filtering plus a real neural voice fingerprint, not a prototype.
v1.1 doesn't touch the core engine — it makes Voice Lock more precise and makes the app something you'd actually keep running in your pocket all day.
The same Voice Lock pipeline that isolates a single speaker also knows who's talking and when — v2.0 puts that knowledge to work in two directions: helping you hear better, and helping you remember what was said.
Long-term, isolait is the proof of concept for a broader idea: that isolating a single clean voice before any downstream AI model touches it makes everything built on top of that voice — translation, transcription, conversation — meaningfully more accurate.
Once isolait knows who it's listening to, the same engine can support a person's everyday relationships and accessibility needs — not just a single conversation at a time.
The core engine doesn't have to live only on a phone screen — the same Voice Lock pipeline can travel to new surfaces, hardware, and audiences.
Free to download. Works the moment you open it — no account, no setup, no audio ever leaving your phone.