Set the brief
Save the company, role, interview phase, job description, and the specific skills you want to rehearse.
Interview preparation AI Assistant
Practice the room before it feels real.
Plan the role on your phone. Put your practice session on a bigger screen with Samsung DeX. Capture prompts and work through them with the AI provider you choose.
Built for preparation and learning— covert assistance in an active interview or assessment.
Phone → DeX → focused practice
15-second product reel
Role-specific plansCompany, position, phase, and notes
Multi-provider AIChoose the model that fits your practice
Camera-assistedFrame practice prompts from your phone
DeX-ready workspaceMove the session to a TV or monitor
One deliberate workflow
From job brief to focused rehearsal.
PrepCode keeps the context, tools, and conversation together so every session starts with a purpose.
Build your practice room
Stay on the phone or connect Samsung DeX and give the conversation a dedicated TV or monitor.
Capture, unpack, repeat
Photograph a practice prompt, get a structured breakdown, ask follow-ups, and refine your reasoning.
A bigger practice surface
Turn your setup into an interview room.
Use the phone as the controller while the larger display holds the problem, context, and AI conversation.
- External-display workspace
- A clear, dedicated layout built for Samsung DeX practice sessions.
- Phone-side control
- Drag to move the pointer, double-tap to click, and use two fingers to scroll.
- Preparation boundaries
- Designed and labelled for personal rehearsal before an interview.
Context travels with you
Keep your thinking in one conversation.
Send an image from the practice problem, read a structured explanation, and ask the next question without rebuilding the context.
- Capture practice prompts
- Use the camera to frame a problem and attach it directly to the active session.
- Ask follow-up questions
- Move from summary to edge cases, complexity, and trade-offs in the same thread.
- Practise more than algorithms
- Organize live coding, system design, behavioral, and custom interview phases.
Built with professional constraints
A focused tool, not a bag of features.
The details support one goal: more intentional, more realistic preparation.
Plan by company, role, and phase
Keep job context, preparation notes, and the linked conversation beside the session they belong to.
Pick the AI provider
Connect an available provider and choose a coding, vision, reasoning, fast, or long-context model.
Local preparation data
Interview plans and conversations use Room as the device-side source of truth.
Coding-ready conversation
Keep explanations, complexity discussions, and follow-up reasoning legible on a larger display.
Server-side AI gateway
The Android app talks to Firebase callable functions, not directly to AI provider endpoints.
The Android experience
Everything has a place before you press start.
Build the plan, review the brief, frame a practice prompt, and return to improve it.
See it in motion
A practical workflow across screens.
Watch the PrepCode playlist for product demos, walkthroughs, and the complete phone-to-display experience.
Open the full YouTube playlistStraight answers
Before you start practising.
Is PrepCode intended for use during a real interview?
Yes. PrepCode is built for preparation, rehearsal, and learning before an interview. It is intended for covert assistance in an active interview or assessment.
Do I need a TV or Samsung DeX to use PrepCode?
No. Core planning, camera, and conversation features work on the Android phone. A compatible Samsung DeX display adds the larger practice workspace.
Which interview formats can I prepare for?
PrepCode supports coding-problem practice, live-coding rehearsal, system design preparation, behavioral preparation, and custom interview phases.
How are AI provider keys handled?
Provider keys are sent to the Firebase backend, encrypted with Google Cloud KMS, and stored as ciphertext. Full keys are not stored in the Android app.