The privacy-first utility that lets you write with your voice.
Professional Offline Transcription. Human-like AI Speech.
* OneSentence uses AI models which can occasionally make mistakes.
The goal of Project Apollo is to create a seamless bridge between local inference engines and user interface elements.
We need to ensure that the latency remains under 200ms for real-time feedback loops.
Your voice and text never leave your device. OneSentence runs entirely offline using local binaries. No cloud. No tracking.
Optimized specifically for M1, M2, and M3 chips. High-performance AI without draining your battery or spinning your fans.
Tired of monthly fees for AI tools? OneSentence is a comprehensive utility with a simple, honest model. Buy once, own forever.
Dictate notes and ideas directly to your clipboard. Powered by the industry-leading Whisper model, OneSentence delivers precise transcription completely offline.
Transform emails, PDFs, and long articles into a narrated experience. Unlike robotic system voices, OneSentence uses advanced Supertonic diffusion models to provide a pro-audio listening experience.
Curated human-like English voices (M1-M4, F1-F4) with natural intonation.
Works in any application with a simple global hotkey.
Using "Voice M1" (Supertonic)
We believe your thoughts belong to you. Because OneSentence processes all voice and text data locally on your device, we have literally nothing to sell to advertisers.
To keep the app lightweight, the high-quality AI models are downloaded securely on-demand when you first run the app. This ensures you only store the data you actually need.
Yes, 100%. Once the models are downloaded, you can be in the middle of a desert with no Wi-Fi and OneSentence will work perfectly. Your data never leaves your machine.
OneSentence lives in your menu bar (top right of your screen). Click the waveform icon to access settings, or use the global hotkeys (Command+5 and Command+6 by default) to trigger functions instantly.
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OneSentence uses local AI models for transcription and voice synthesis. Like all AI, these models are non-deterministic and can occasionally make mistakes.
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