How do I get started?

Sign in, attach a resume or a job description, and start a session before the call: in the desktop app, in a Chrome or Edge tab, or on a phone beside your laptop. The Free plan needs no card and covers a short session: enough to find out whether reading an answer while listening works for you.

Can the other side see it?

Not through standard screen or window sharing: the overlay is a separate always-on-top window that the capture surface does not include. It is not invisible in general. A camera pointed at your monitor sees it, some proctoring software that captures the whole display sees it, and a colleague standing behind you sees it. Treat it as private, not as undetectable.

Which meeting apps does it work with?

Any of them. Nothing joins the call and nothing plugs into the meeting app: the desktop app listens to your machine’s system audio, so Zoom, Google Meet, Microsoft Teams, Webex, Slack, Discord and a call in a browser tab all work the same way. Without the app, join the call in a browser tab and share that tab; a phone beside the laptop hears whatever plays on its speakers.

Do I need the desktop app?

No, but it is the best place for a call: it captures the call from the system mixer rather than from a tab someone has to share, and its window stays above the meeting, where standard screen share cannot capture it. A browser on a computer (Chrome or Edge, sharing the tab the call is in) and a phone beside the laptop run the same session, with the same answers and history.

Can I wear headphones?

Yes. The desktop app takes the audio from the system mixer, before it reaches your speakers or headphones, so what you plug in makes no difference. Your own voice arrives through the microphone on a separate track.

Does it help with coding interviews?

Yes. It listens for the question like on any other call, and when a task is on the screen (an algorithm, a bug, a function to write), one shortcut captures it and the answer comes back as working code for that exact task, with its complexity. You can also type a follow-up into the panel mid-call.

Does it help with system design interviews?

Yes, with a mode of its own, and it is on the Hacker plan. Switch design mode on mid-call and the panel keeps a whiteboard beside the answer (the brief with the numbers, the architecture as a diagram, the data model) and redraws only what the last question changed, so the board grows over the whole round instead of starting again each time. You read the bullets out while the drawing arrives behind them, and the diagram copies out as Mermaid, for Excalidraw or any board that reads it.

Can I practise with a mock interview first?

Yes. Paste the job description and an AI interviewer holds a ten-minute screening round built from it: it asks each question out loud, waits for you to finish, follows up where an answer left a gap, and closes on time. Afterwards every answer gets a score, what it was missing and a stronger version built from what you said. Switch hints on and the panel answers each question as it is asked, the way it would on the real call. Mock interviews are in English for now and count as session time, like any call: start one from Prepare in the app, or from the Mock tab in the desktop app.

Which languages does it understand?

Transcription handles English, German, Spanish, French, Hindi, Italian, Dutch, Polish, Portuguese, Russian, Ukrainian, Japanese, Korean, Mandarin, Cantonese, Thai, Malay and Indonesian, and the answer comes back in the language the call is held in. The interface itself is translated into all of them except Cantonese, with Chinese in both simplified and traditional characters.

The finalized transcript, the questions that were detected, the answers that were generated, and how long the session ran; in a mock interview, also the questions it asked, your answer to each and the feedback. Interim transcription (the text that flickers and rewrites itself while someone is still speaking) is rendered and thrown away. Transcripts, detected questions and answers delete themselves after 30 days, and so do your answers in a mock interview; what stays is the session, how long it ran, and a mock interview’s questions and feedback. You can delete a session sooner, and deleting your account removes all of it.

What does Free include, and what does Hacker add?

Free is thirty minutes of session time, given once and with no card: every model, as many documents as you like, and no cap on a single call until the half hour is gone. It is there to answer one question (whether reading an answer while someone is talking to you works for you), so it is not renewed each month. Hacker removes the limit and adds design mode, the system-design whiteboard: unlimited session time, billed by the week, the month or the year. Nothing to top up, no credits to count.

From Billing in the app, in two clicks. The plan stays active until the end of the period you already paid for, then drops back to Free. Cancelling deletes nothing you attached or recorded: you remove those yourself, whenever you want.

The desktop app runs on macOS 13 or newer, Apple silicon or Intel, and on 64-bit Windows 10 or newer. On macOS the first launch asks for Screen Recording permission: it is how the app hears the call's system audio and takes the screenshots you ask for with a shortcut, and your screen is captured at no other moment. Without the app, a session runs in Chrome or Edge on any computer, Linux included, and in the browser of an iPhone or an Android phone.

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Interview answers, hidden from screen share

HackOffer hears the question and writes the answer from your own resume, onto a panel a screen share cannot capture. For any role and any round: behavioral, coding or system design.

Try for free Download

Your first 30 minutes are free, no card.

What they seeWhat you see

Listening3/412:04

Detected12:04

Tell me about a time you pushed back on a decision.

The decision: rewrite billing eight weeks before launch. The team wanted a clean rebuild; we had one customer waiting and no slack in the date.

Ask anything…⇧␣Answer↵

3/412:04

TranscriptListening

Interviewer11:48
Why are you looking to leave your current role?
You11:49
Mostly the scope: I want to own a product end to end, not one service inside it.
Interviewer11:56
How would you decide which of two features to build first?
You11:57
By what moves the number we already agreed on, and I would say which one.
Interviewer12:04
Tell me about a time you pushed back on a decision.
You12:05
So the clearest case was the billing rewrite at Northwind, about eight weeks before

Detected12:04

Tell me about a time you pushed back on a decision.

The decision: rewrite billing eight weeks before launch. The team wanted a clean rebuild; we had one customer waiting and no slack in the date.
What I did first. Wrote down the three failures the rewrite was meant to fix and showed two of them were configuration.
How I pushed back. In writing, with the numbers, to the person who owned the call, and said I would build it their way if they still wanted to.
What happened. We shipped on time; the rewrite came the next quarter, scoped to the one problem that was real.

ShorterDeeperSimplerExampleCodeTrade-offs

Ask anything…⇧␣Answer↵Screenshot⇧↵

The panel as it renders over a call. Nothing behind it is captured by it, and nothing in it is captured by a screen share.

Who it is for

The whole interview, not only the technical round

Engineers

Behavioural
Coding task on screen
System design

Your resume, and the task captured from your screen

Product and analytics

Case
Prioritisation
Metrics deep dive

Your own launches and numbers, not a textbook framework

Sales and customer roles

Objection handling
Live role play
Discovery call

A sales-call answer profile, in the stance of the call

Any other role

Screening call
Manager round
Final round

The same three documents: your resume, the job description and your notes

…and in a second language

The call is transcribed in nineteen languages and the answer comes back in the one it is held in.

Deutsch
English
Español
Français
हिन्दी
Bahasa Indonesia
Italiano
日本語
한국어
Bahasa Melayu
Nederlands
Polski
Português
Русский
ไทย
Українська
简体中文
繁體中文
廣東話

How it works

Three steps, and you only do the first

Add what you want it to know, open the panel on the call, and read. Everything in between is automatic.

Drop your resume
PDF, or paste it as text
Resume.pdf182 KB
Alex Kim
Senior Backend Engineer
Experience
Projects
Skills
- Experience read
- Projects and numbers
- Metrics and impact
- Stack and tools
Before the call
Give it your resume
Upload your resume, the job description and any notes. They go into every answer whole, so what the panel suggests is your experience (your projects, your numbers, your stack) and not a generic candidate’s.
On the call
It hears the question as it is asked
It listens to the room on one track and to you on another, and spots a question the moment the sentence closes, on your machine, in a fraction of a second. Nothing joins the meeting.
Every question
It writes the answer onto the panel
The reply streams onto the panel token by token, phrased for what was just asked and built from the documents you gave it. It is there before you have finished drawing breath, and it is on no one’s screen but yours.

Features

What you actually get

No waitlist features, no roadmap items dressed up as capabilities.

Listening
Answers while they are still asking
A suggested answer starts streaming onto the panel the moment a question is heard, so you are never caught blank. Every question the call has asked stays in a strip above it, and you step back to any of them at any moment: by shortcut, without taking your hands off the keyboard, or with a click.
Question · 12:04
Tell me about a time you pushed back on a decision.
Answer
Eight weeks before a launch at Northwind the team wanted to rewrite billing. I wrote down the three failures the rewrite was meant to fix, showed two of them were configuration, and put that in writing to the person who owned the call, adding I would build it their way if they still wanted to. We shipped on time, and the rewrite happened the next quarter, scoped to the one real problem.
Answers from your resume, not from a template
Your resume, the job description and your notes go into every answer whole: nothing is shortened, summarised or picked from. So the panel suggests your projects, your numbers and your stack, not a plausible candidate’s.
One shortcut for what is on your screen
Capture the coding task, the diagram or the slide with one shortcut. The answer is about the thing you captured: working code for the task on screen, not a guess from what was said about it.
Ask it something yourself
Type a question of your own mid-call: a fact you need, a name you have lost, what was said ten minutes ago. It answers from the transcript and your documents, and it answers you, not the room.
Read the call back afterwards
Every call is kept as a session: the full transcript with who said what, each question that was detected and the answer written for it, at the minute it happened. The session stays in your list; its words are held for 30 days, and you can delete them sooner.

Works with the call you are already on

Nothing joins the meeting. The app listens to the sound your computer is already making, so the call can run on any of these, or on whatever your company uses instead of them.

Zoom
Google Meet
Microsoft Teams
Webex
Slack
Discord

Practice anywhere, answer anywhere

Before the call
Mock interview
Questions from your job description, a score and a stronger version of each answer.
10 minStart
Recommended
Desktop app
Hears the whole call, shows answers above the meeting, hidden from screen share.
macOS · WindowsDownload
No install
Browser
Share the call tab with sound — answers appear right beside it.
Chrome · EdgeOpen
Off-screen
Phone
Next to your laptop. Nothing on the screen you share. Works in person too.
iPhone · AndroidOpen

For engineers

Built for the technical rounds

The app reads the task off your screen

One shortcut captures the shared task — an algorithm, a bug, a function. You get working code for that exact task, with the complexity.

The whiteboard draws the system while you talk

The panel keeps the numbers, draws the architecture and the data model, and redraws only what the last question changed. Design mode is on the Hacker plan.

Try for free

Captured

function fibonacci(n, memo = new Map()) {  if (n < 2) return n  if (memo.has(n)) return memo.get(n)   const value = fibonacci(n - 1, memo)    + fibonacci(n - 2, memo)  memo.set(n, value)  return value} fibonacci(50) // 12586269025// O(n) time · O(n) space · memoised

Recommended by HackOffer

A resume built for each job

resume.art reads the job description, finds what the role asks for and rewrites your resume around it. ATS-friendly, in your own words, ready in minutes.

Try it free

First resume free on resume.art

MCMaya ChenSenior Product Designer

Summary

Product designer with 7 years in B2B SaaS. Led the design system at Lumen Cloud and shipped an editor used by 40k teams.

Experience

Lead Product Designer · Lumen Cloud2021–now

Product Designer · Northwind2018–21

SkillsFigma · Prototyping · B2B SaaS · Accessibility

EducationB.A. Interaction Design · UdK Berlin

96ATS scoreReady to send

95%Job matchNexxen · Product Designer

Ready in minutesFrom a single message

Pricing

One plan and one limit: Free gives you thirty minutes of session time to try it with, Hacker takes the limit away and adds the design whiteboard. No credits, nothing to top up.

Free

Start here

The first thirty minutes are on us: every model, every document, no card. Enough to sit through one real call and find out whether it works for you. The design whiteboard is the one thing that waits for Hacker.

30 minfree, onceNo card

30 min of live session, once
No cap on a single session
Hidden from screen share on Zoom, Meet and Teams
Your resume and documents in every answer, in full
Coding tasks solved from a screenshot
Ask it your own questions mid-call
Top AI models under the hood, so the answer starts the moment the question ends
Desktop app, browser and phone

Start free

Hacker

Straight answers

Find out on a test call

Open HackOffer in the desktop app, in a browser tab or on your phone, and press Test call. A recorded interviewer asks three questions through your speakers, and you watch the answers arrive — built from your resume, in the language of your interviews. Free, and it does not touch your minutes.

Try for free Download

Your first 30 minutes are free, no card.

Interview answers, hidden from screen share

The whole interview, not only the technical round

Engineers

Product and analytics

Sales and customer roles

Any other role

…and in a second language

Three steps, and you only do the first

Give it your resume

It hears the question as it is asked

It writes the answer onto the panel

What you actually get

Answers while they are still asking

Answers from your resume, not from a template

One shortcut for what is on your screen

Ask it something yourself

Read the call back afterwards