Control for interviews, assessments, and screen-share workflows

Show up ready
for every
interview.

Control is a desktop AI interview assistant that helps you move through interviews, assessments, and screen-share workflows without switching tabs or retyping the prompt.

Download for WindowsLeave feedback

New users get their first 5 messages and 2 minutes of voice free.

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Never miss the question.

Control listens in real time and turns the live conversation into usable context.

Control

“What would you have done differently?”

Interviewer

Walk me through the project. What problem were you trying to solve?

You

We were rebuilding onboarding for a B2B product with a major launch approaching.

Interviewer

What outcome were you responsible for?

You

The goal was to ship before the deadline and support the new sales motion.

Interviewer

Did the timeline change after the work started?

You

Yes. Leadership moved the launch forward by three weeks after a customer commitment.

Interviewer

What was the team size?

You

It was three engineers, one PM, and a designer working on contract.

Interviewer

What was the biggest delivery risk at that point?

You

The onboarding flow was still unfinished and touched several services we did not own.

Interviewer

Every follow-up makes sense.

New questions stay connected to what was discussed, decided, and attempted earlier.

Meeting information
Northstar interviewView
Interviewer speaking during a remote interviewAlex Rivera
What did you do when that didn’t work?
Mute
Stop Video
Participants
Chat
Share
Reactions
More
Answer latestSummarizeClarify
Using conversation context
Click mic to dictate into message...
CarefulQuick

Quick when every second counts. Careful when the question needs depth.

Stay focused on the interview.

Get relevant help without switching tabs, retyping prompts, or breaking your flow.

Design a real-time context pipeline

p95 < 500 msordered per sessionreplayable
Audio captureEvent gatewaypartition: sessionIdContext workersummarize + indexDurable logordered eventsContext storeRedis + summaries✓ idempotent event IDs✓ hot state in Redis
Capture the boardCtrl+H
Control
How does this pipeline stay current without losing earlier decisions?
Audio capture sends idempotent events through the Event gateway, partitioned by sessionId. The Durable log preserves their order, while the Context worker consumes each event to update recent turns in Redis and rolling summaries in the Context store. Answer requests read both layers, so fresh details stay available without dropping earlier decisions; retries are safe and worker lag never blocks capture.
×
Click mic to dictate into message...
CarefulQuick

Help is always within reach.

Use undetectable global hotkeys to capture context, ask for help, and control the interview without leaving your workflow.

Ctrl+H

Capture

Ctrl+Shift+H

Select region

Ctrl+Enter

Ask Control

Ctrl+Shift+Space

Listen

Ctrl+Shift+C

Toggle chat

Ctrl+B

Hide overlay

Ctrl+N

New session

Ctrl+Shift+Z

Undo send

Away from your keyboard?

The same live conversation, within reach on every device.

9:41● ◒ ▰
System Design · Context Pipeline
↻+
How would you keep earlier decisions available as the conversation grows?
Read the latest turns from Redis and merge them with rolling summaries from the context store.
Message Control

Control can make mistakes. Check important actions.

9:41● ◒ ▰
System Design · Context Pipeline
↻+
How would you keep earlier decisions available as the conversation grows?
Read the latest turns from Redis and merge them with rolling summaries from the context store.
ScreenshotGet context
VisibleStealthMoveMore
Message Control

Control can make mistakes. Check important actions.

Invisible wherever they look.

Control stays private across the interview tools and system checks that could expose your workspace.

They see the interview. Control stays invisible.

Drag the divider to see how Control remains undetectable in the window you share.

NNorthstar Engineering Assessment×
assessment.northstar.dev/interview/rate-limiter
C
solution.tstests.ts
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class RateLimiter {
  private requests = new Map();

  allow(userId: string, now: number) {
    const windowStart = now - 60_000;
    remove expired entries
    const recent = (this.requests.get(userId) ?? [])
      .filter((time) => time > windowStart);

    if (recent.length >= 100) return false;
  }
}
Maya Chen speaking in a minimized interview call with a Golden Gate Bridge virtual backgroundMaya Chen
Interview in progress•••
NNorthstar Engineering Assessment×
assessment.northstar.dev/interview/rate-limiter
C
solution.tstests.ts
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class RateLimiter {
  private requests = new Map();

  allow(userId: string, now: number) {
    const windowStart = now - 60_000;
    remove expired entries
    const recent = (this.requests.get(userId) ?? [])
      .filter((time) => time > windowStart);

    if (recent.length >= 100) return false;
  }
}
Maya Chen speaking in a minimized interview call with a Golden Gate Bridge virtual backgroundMaya Chen
Interview in progress•••
Control
How would you keep this rate limiter correct under concurrent requests?

Make cleanup, the limit check, and insertion atomic. In Redis, run them together in a Lua script:

redis.call('ZREMRANGEBYSCORE', key, 0, now - window)
if redis.call('ZCARD', key) >= limit then return 0 end
redis.call('ZADD', key, now, requestId)
redis.call('PEXPIRE', key, window)
return 1
Click mic to dictate into message...
CarefulQuick

Hidden from Activity Monitor.

Control doesn't appear in Activity Monitor while it's running, keeping your interview workspace private from system-level process checks.

Activity Monitor

All Processes

Process Name% CPUCPU TimeThreadsKind

No matching processes

No process named “Control” is visible.

System: 6.25%

CPU load

Processes: 0 matches

The Control Journal

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AI Interview Assistant for Screen Share Workflows

A practical guide to choosing AI interview assistant software for Zoom, Google Meet, Teams, CoderPad, HackerRank, and other screen-share workflows.

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Guides · 10 min read

Desktop AI Interview Assistant Guide for 2026

How to evaluate desktop AI interview assistants for live interviews, coding rounds, online assessments, and screen-share workflows.

Read the guide
Verification

Test what focus-tracking systems actually detect

Run our focus test to see what interview software can observe, what it flags, and where Control stays out of the signal path.

Run focus test

Compare local behavior against visible focus signals

Built for the tools used in real interview workflows

Control is meant to fit the standard interview stack: video call, shared screen, browser-based editor, and coding assessment platform. You should be able to drop it into that environment without changing how you normally work.

Zoom

Video call

Past checksAs of last check
Google Meet logo

Google Meet

Video call

Past checksAs of last check
Microsoft Teams logo

Microsoft Teams

Video call

Past checksAs of last check
Webex logo

Webex

Video call

Past checksAs of last check
HireVue logo

HireVue

Interview room

Past checksAs of last check
CoderPad logo

CoderPad

Live coding

Past checksAs of last check

HackerRank

Assessment

Past checksAs of last check

CodeSignal

Assessment

Past checksAs of last check

Pricing Plans

Try Control first

New users get their first 5 messages and 2 minutes of voice free before choosing a day pass, sprint pass, or monthly plan.

24 Hours

Day Pass

$12
/24 hours
24-Hour Full Access
Real-Time Voice + Screenshots
Phone Remote Included
No Subscription Required
72 Hours

Sprint Pass

$19
/72 hours
72-Hour Full Access
Built for Interview Clusters
Real-Time Voice + Screenshots
No Subscription Required
Recommended
Monthly

Monthly

$39
/month
Full Access All Month
Best for Active Interview Cycles
Phone Remote Included
Cancel Anytime

Frequently Asked Questions

Can I try Control before paying?

Yes. New users get their first 5 messages and 2 minutes of voice transcription free, so you can download Control, send a few prompts, and make sure it fits your workflow before buying a pass.

Won't this be detected by anti-cheating software?

Our software is designed to be completely undetectable to interviewers and proctored assessments: • Invisible to Zoom (≤6.16) and any browser-based screen recording software • Undetectable global keyboard commands that can't be detected as input by the browser • Moveable overlay using Ctrl + Arrow keys so your eyes aren't looking away from the solution as you write your code

How does Control compare to Cluely, InterviewCoder, and other tools?

Control offers several advantages over browser extension-based interview tools like Cluely and InterviewCoder: • Desktop app: Unlike Chrome extensions that are visible in browser and require alt-tabbing, Control runs in the background and never needs window focus • Mobile remote: Control can be controlled from your phone to trigger screenshots, view solutions, and type responses without touching your interview computer • Voice transcription: AI listens to your interviewer in real-time and transcribes everything they say - never miss a question • Works with screenshots: Takes a screenshot of coding problem and sends to AI - no need to type problem context manually • Invisible overlay: Solution appears in a hidden window that doesn't show up on screen recordings or Zoom

Why do I need to download a desktop app?

Being a desktop app lets you control your AI copilot with global hotkeys, regardless of which window has focus. This means you can continue with your normal interview workflow and get answers without alt-tabbing or flagging suspicious behavior. Interview copilots that are Chrome extensions can't be used in live coding interviews where you have to share your screen. This severely reduces their usefulness in real interview scenarios.

How does the mobile remote control work?

Once you're logged in on both devices, your phone connects to your desktop app through our secure servers. You can trigger screenshots, view AI responses, and even type responses remotely—all without touching your interview computer.

Is my code and data private?

Yes. Screen captures are processed locally on your device and sent directly for AI processing. We don't collect personal data for marketing, payments, or analytics. Your privacy is our priority.

What is your refund policy?

We do not offer refunds. Due to the nature of our product and immediate access granted upon purchase, all sales are final. Please make sure this product meets your needs before purchasing.

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