Control vs InterviewFox
InterviewFox pipes AI guidance to a second device so nothing touches the interview machine's screen. The architecture is clever; the bill is $129 a month, $99 with a quarter's commitment, or by-the-second credits. Control gets you covered for $12.
$12
Control day pass, phone remote included
$129
InterviewFox month-to-month
$81
its best rate — six months committed
2
devices its workflow requires
The short version
InterviewFox's pitch is architectural: the desktop client only transmits audio and screen data, and all AI output lands on your phone — physically air-gapped from the machine being shared. As a detection posture, routing answers away from the shared screen entirely is a genuinely strong idea. Then the pricing ladder: $129 month-to-month, $99 a month if you commit to a quarter, $81 a month for half a year — the discount schedule of a gym, for a product you hope to quit. Control reaches a similar outcome from the other side: the overlay is invisible on the shared machine, and the phone remote already lets you read answers and drive the session from your hand — for $12 a day, with the machine-side overlay still there when glancing away isn't an option.
Pricing
Free trial
5 messages and 2 minutes of voice. No card.
$0
Day pass
24 hours. Every feature. One-time purchase.
$12
Sprint pass
72 hours. Built for onsite loops.
$19
Monthly
Full access all month. Cancel anytime.
$39
Every pass includes every feature. The passes only change how long you have it.
Pay-as-you-go
200 minutes, billed by the second.
$29
Monthly
Per month.
$129
Quarterly
Per month, three months committed.
$99
Six-month
Per month, six months committed.
$81
Features
Capability
Control
InterviewFox
Invisible to screen share
Invisible to Zoom (6.16 and earlier) and browser-based screen recording, on every pass including the $12 day pass.
Nothing renders on the shared machine at all — the air gap is the stealth.
Hidden from system process checks
Doesn't appear in Activity Monitor while running, so a system-level process check stays clean.
The transmitter client still runs on the interview machine.
Live voice transcription
Real-time transcription of the interviewer on every pass — questions are picked up and answered automatically, before you ask.
Audio streams to the phone as transcript plus guidance.
Answers next to your code
Overlay moves with Ctrl + arrow keys, so your eyes stay near the code you're writing.
Answers live on the phone — every glance is a glance away from the screen and camera.
Capability
Control
InterviewFox
Phone in the workflow
Phone connects through secure servers: trigger screenshots, read responses, type remotely — the interview machine stays untouched.
The phone is the display; it receives output but doesn't drive the desktop.
Works with one device
Phone remote is optional — the overlay alone carries the round.
Dual-device is the product; no phone charged and mounted, no answers.
Screenshot-to-answer for coding problems
The problem on your screen is captured and sent to the AI automatically — no retyping, no trigger to remember.
Screen data transmits to the phone for solving — read the solution off the small screen.
Capability
Control
InterviewFox
Unmetered option at low cost
No credits, session counts, or clocks while a pass is active. A 6-hour final loop costs the same as a phone screen.
Unmetered starts at $81–129/month; the cheap entry is by-the-second credits.
Pay for days instead of months
$12 for 24 hours, $19 for 72 hours. One-time purchases that can't renew themselves.
The $29 pack covers 200 minutes — but it's a meter, not a day.
Capability
Control
InterviewFox
Public, unambiguous pricing
Every price is on the public pricing page. What you see is what checkout charges.
The ladder is public; it just climbs steeply.
Low-risk first purchase
Sales are final, but the most a first test can cost after the free trial is $12.
The $29/200-minute pack is a fair first step.
In practice
Give InterviewFox its due: sending nothing back to the interview machine is the most conservative detection posture in the category. No overlay to hide, no process to mask — the shared screen is genuinely clean, because the answers are on your phone.
The same design decision is the product's tax. Your eyes leave the screen for every answer — on camera, repeatedly, at exactly the moments you're supposed to be thinking. You're managing a second device's battery, mount, and lock screen mid-interview. And a coding solution read off a phone must be retyped from glances. The air gap protects the screen by making you the transmission channel.
Control and InterviewFox both put a phone in the loop, pointed opposite ways. InterviewFox pushes output to the phone: maximum machine cleanliness, eyes-off-screen cost. Control pulls control from the phone — trigger captures, read responses, type remotely — while the overlay on the machine stays invisible to the share for when looking away isn't affordable.
Control's version makes the second device optional: use the phone when it helps (a proctored assessment, a paranoid setup), ignore it when the overlay is enough. With InterviewFox, the second device is the product.
The pricing tells you what the business wants: $129 falls to $99 with a quarter's commitment and $81 with half a year. It's the retention curve of a subscription business bolted onto a product whose successful outcome is that you stop needing it within weeks.
Control's $39 monthly beats InterviewFox's best committed rate by half without any commitment — and the passes go further: if the whole search is one big onsite, $19 covers the week and there's nothing to cancel.
Cost
The cheapest option on each side that fully covers the scenario — invisibility on, enough sessions to finish.
Scenario
Control
InterviewFox
One interview tomorrow
A single covered session with invisibility on.
$12
$29
The 200-minute pack covers it — metered by the second.
One onsite loop
Four or five rounds inside a week.
$19
$29–129
A long loop can outrun 200 minutes; the next stop is monthly.
Active three-month search
Coverage across a full search cycle.
$117
$297
Three months at the quarterly rate.
Track record
The other side
Fine print
Common questions
Pay-as-you-go: $29 — 200 minutes, billed by the second. Monthly: $129 — Per month. Quarterly: $99 — Per month, three months committed. Six-month: $81 — Per month, six months committed. Control, by comparison, is $12 for a 24-hour day pass, $19 for a 72-hour sprint pass, or $39 a month — with every feature included on every pass.
Yes, with caveats. Nothing renders on the shared machine at all — the air gap is the stealth. Control is invisible to Zoom (6.16 and earlier) and browser-based screen recording on every pass, including the $12 day pass, and doesn't appear in Activity Monitor while running.
Yes. Control covers a full interview day for $12, an onsite loop week for $19, or a month for $39 — unmetered, with screen-share invisibility, automatic question capture, live voice transcription, and a phone remote included at every price. There's also a free trial (5 messages and 2 minutes of voice) with no card required.
Control is built specifically for live interviews and assessments: it listens to the interviewer in real time, captures the problem on your screen automatically, and renders answers in an overlay that screen sharing doesn't see — controllable from your phone so the interview machine stays untouched. Coverage starts at $12 for 24 hours.
Download Control and run the included free messages and voice minutes against your own setup before spending anything.