Native macOS app · No subscription required
Best undetectable AI copilot
for technical interviews
Real-time transcription and AI hints in a floating overlay that's completely invisible to screen sharing.
Everything you need.
Nothing they can see.
Built for technical interviews. Powered by the AI provider you trust.
Real-time audio transcription
Captures both your voice and the interviewer's system audio. Four engines: Apple Speech, OpenAI Realtime, Groq Whisper, Deepgram Nova-3.
Screenshot to solution
Hit one hotkey to grab the entire screen, or another to draw a selection around just the part you care about. The AI analyzes the captured image and returns a complete solution — no typing or speaking required.
Translucent, high-contrast & click-through modes available
Translucent mode makes the entire app transparent so your screen behind it stays visible through the overlay. High-contrast mode switches to an opaque UI in any accent color you want. Click-through lets you select and interact with anything beneath the Hidini layer as if it weren't there — while still seeing it on top.
Effortless to control
Hidini was built for high-pressure moments, so controlling it never gets in the way. Toggle the overlay on or off, slide it anywhere on screen, resize it on the fly, or trigger any feature in a single keystroke. Every action maps to a global hotkey you can fully customize to match your muscle memory.
Sticky notes only you can see
Drop as many sticky notes as you need, exactly where you want them. Drag them around, resize them from any corner, scale the text from tiny to large. Notes live above every other app, follow you across Spaces and full-screen workspaces, and reload right where you left them. They share the same invisibility layer as the rest of Hidini, so nobody on your call ever knows they exist.
AI help, invisible to screen sharing
Expert-level answers streamed in real time from Claude, OpenAI, Gemini, or fully local Ollama — rendered in a floating overlay that operates below the screen capture layer. Any screen sharing software (Zoom, Meet, Teams, Discord, OBS, and others) physically cannot access it; the overlay doesn't exist in their rendering context.
Ultra lightweight
100% native macOS App.
Zero compromises.
Built entirely in Swift with zero third-party frameworks. No Electron, no web views, no Rust overlay wrappers.
- < 10 MB
- binary size
- 0%
- CPU when idle
- 0
- third-party deps
AI credits included.
Or bring your own keys.
Every plan comes with AI credits so you can start right away. Prefer your own provider? Bring your own API keys and skip credits entirely. Or go fully local with Ollama — zero cost, full privacy. See pricing for details.
- Claude Anthropic
- GPT OpenAI
- Gemini Google
- Ollama Local & free
Be first when we ship
The macOS beta is almost ready. Drop us a note and we'll send the download link the moment it goes live.
macOS · Apple Silicon and Intel