Voice-first100% Private

Never lose a
thought again.

That 2am idea keeping you awake? Capture it and let go. Nyx asks the right questions to develop your thinking—so you can rest knowing nothing will slip away.

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9:41
Local First

Your ideas,
explored.

Nyx is the private voice AI that listens to you to capture and structure your best ideas locally.

Listening

Nyx

Mmm... I'm listening.

You

It's a calendar that fights back. If I overload it, it refuses to add more meetings.

Nyx

DK

Your Ideas

13
Ideas Captured
5
Actioned

Recent Sessions

Processing
Just now

Product Roadmap Q4

Analyzing user feedback regarding the new authentication flow...

Linear
2h ago

Bug fix for auth flow

The token refresh logic needs to handle 401s gracefully...

Notion
Yesterday

Blog: Privacy First AI

Outline for the post about local processing...

Your Thinking Partner

Nyx doesn't just record—it listens, asks thoughtful questions, and helps shape half-formed ideas into clarity. All on your device, completely private.

1. Tap & Speak

Tap the orb. Speak messily. Vague notions are welcome here.

2. Guided Discovery

Nyx listens deeply and asks the right questions to unlock your best thinking.

3. Crystallization

Your rambling conversation is synthesized into a structured one-pager.

4. Total Privacy

AI runs locally on your phone. Safe from prying eyes and cloud leaks.

Why Nyx

Capture ideas the way
your mind creates them.

Proactive Discussion

Trained on 20,000+ real expert conversations, Nyx asks Socratic follow-up questions that help you develop half-formed ideas into structured insights.

100% On-Device

Your thoughts never leave your device. All AI processing happens locally—no cloud, no servers, no compromise.

Instant Capture

Start speaking immediately. No loading screens, no internet required. Capture ideas as fast as you think them.

Smart Structuring

Automatically organizes rambling thoughts into clear summaries, action items, and exportable formats.

Multilingual Input

Speak in 10 languages and Nyx understands. Think in your native tongue, capture without barriers.

Export Anywhere

Send structured ideas to Notion, Linear, Jira, or anywhere else. Your vault, your workflow, your choice.

FAQ

Questions?

How is Nyx different from voice memos or transcription apps?+
Voice memos capture audio. Transcription apps convert speech to text. Nyx goes further—it actively listens, asks follow-up questions, and helps you develop half-formed thoughts into structured, actionable ideas. We trained a custom model on 20,000+ real conversations with experts across diverse fields to create a thinking partner that asks the right questions at the right time.
What do you mean by "100% on-device"?+
All AI processing happens locally on your phone. Your thoughts never leave your device—no cloud servers, no data collection, no subscriptions required. It works completely offline.
What languages does Nyx support?+
Nyx understands 10 languages including English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese, and Hindi. Think in your native tongue.
When will Nyx be available?+
We're targeting Q1 2026 for launch. Join the waitlist to be first in line and get early access.

Stop losing your
best ideas.

Be first to experience a thinking partner that helps you capture, develop, and act on ideas—without ever leaving your device.

Join 500+ builders waiting
No spam, ever
Launching Q1 2026