#1 most trusted AI copilot for live interviews

Your next big opportunity.An AI that keeps up.

You shouldn’t have to babysit your AI. Codeplusone sees your work, remembers what changed, and brings that context to what comes next.

Download for macOS

Persistent context Adaptive workspace Privacy controls

It keeps up as you work.20-SECOND PRODUCT DEMO

Interview workspaceCODING

100%

disputes.pyVisible 1–14Python

plusoneSTEALTH ON

GUARANTEES

The newest event wins.

Input order can’t decide a dispute’s status.

Reopenings replace older closures
Fraud takes priority
Protected code stays untouched

APPROACH

1Bug: Read each dispute’s newest eventSelect by timestamp, not position.

2Resolve the loan outcomeFraud → investigate → clear.

IMPLEMENTATION 1 bug foundPython

BUG FIX · 10–12

0:00 / 0:20Reading the workspace

Your screen changes. Session context follows.

Big ambitions. A little more in your corner.

GoogleamazonMicrosoftairbnbMetaNETFLIXstripe

Prepare for your next chapter. Company names are illustrative, not endorsements.

“The generative AI answers aren't helpful for my job interviews. It feels scammy because it's so expensive even for one time use”

LauraGB · 22 reviews

★★★★★

“Instead of providing responses based closely on my uploaded material, I found the output to be generic and not suitable for my intended use.”

Final Round AI

KaiGB · 3 reviewsSep 9, 2026

★★★★★

Do not fall for this service

“Final Round AI advertises a low monthly rate $25/month, but the moment you check out, they bill your card upfront for a full annual subscription $300+ instead of charging month-to-month.”

CluelyCommentary excerpt

“Latency is worse than advertised: 300ms claim vs 5–10 seconds”

Interview CoderCommentary excerpt

“The official website does not disclose which AI model is used, nor does it mention any refund policy for either payment option.”

“I requested a refund within 48 hours because the product was defective. They denied my request claiming 'substantial usage' because I spent time trying to troubleshoot their broken tool.”

“I also tried cancelling and having a refund yet the CS team does not respond right away.”

“After requesting a refund, I was instructed by support to change settings and run additional test sessions to troubleshoot the issue. I followed those instructions in good faith.”

Stop overpaying for LLM chat wrappers disguised as stealth interview copilotsYour career deserves better

Review and commentary excerpts about other interview tools.

Feature	AIPLUSONE	Other interview copilots
Memory	One evolving state for the whole session. Earlier files, edits, and answers stay known.	One screenshot at a time. Scroll up to find what it said.
What you read	A pinned workspace: approach, code, complexity, tests, and edge cases, each in a fixed place.	A bubble with a snippet. Then another. Then another.
Code quality	Interview-ready code validated inside the same call, complexity derived from the emitted code, three runnable tests.	Whatever came out first, in a chat font.
Follow-ups	Updates only the section that changed and reuses the code you wrote.	Start over. Re-paste. Re-explain.
Bugs	The smallest correct change, shown before and after, located in your code.	A rewritten function.
Multi-file work	Files, versions, and uncertain regions tracked. Nothing invented.	No idea what scrolled off screen.
Price	Free to explore. Paid plans include Solve Tokens and hosted AI, with no API key.	$49 to $299 a month.

Category description based on public product pages reviewed September 2026.

Observe

Capture runs only while you have it on. Each frame is evidence: the text, code, and diagrams on your screen.

Reconstruct state

Frames update one evolving problem state. Overlapping views reconcile, files and versions are tracked, and uncertain regions are marked rather than invented.

Structured workspace

One model call turns that state into a workspace for the active round. Sections update in place, so nothing important scrolls away.

Less managing. More momentum.

Stay with the problem.
We’ll keep the pieces together.

No scrolling through a wall of chat. Your approach, code, and edge cases each have a place—and update as your work evolves.

The answer. Minus the hunt.

A workspace that adapts to the task, with the part you need one tap away.

A set, one pass, no repeats.

Normalize each word with your existing helper. Keep only the first occurrence in a set, then return the count.

O(n · k) timeBuilt on your code ↗

Keep your hands in the flow.

Solve, discuss, and show your workspace. A few keys. One less interruption.

⌘command

↵return

Try a shortcut above · actual app bindings

A little privacy. A lot of peace of mind.

Your workspace. Your view.

One desktop, two perspectives. Move across the screen to reveal the covered app.

Finder File Edit View Go Window Help⌁ ◉ Thu 9:41 AM

workspace — main.py⌘

main.py ×

1from collections import OrderedDict
2
3class LRUCache:
4 def __init__(self, capacity):
5 self.capacity = capacity
6 self.items = OrderedDict()
7
8 def get(self, key):
9 if key not in self.items:
10 return -1
11 # TODO: use cache.py helpers to implement
12 def get(self, key):
13 if key not in self.items:
14 return -1
15 value = self.items.pop(key)
16 self.items[key] = value
17 def put(self, key, value):
18 if key in self.items: self.items.pop(key)
19 self.items[key] = value
20 if len(self.items) > self.capacity:

⑂ main ✓ All changes savedPython UTF-8

codeplusone_•••

OverviewApproachCodeTests

● CODING WORKSPACE

Keep the right things
in memory.

A hash map for lookups. An ordered list for recency. Both operations stay O(1).

01 READ + PROMOTE

value = cache[key]
cache.move_to_end(key)
return value

Time O(1)Space O(n)

▥Private workspaceApp content covered

‹ ›

Covered viewYour Mac

Move left or right at the height of the screen · On touch, drag · With a keyboard, use arrow keys

Illustrated privacy preview. Actual screen-sharing behavior depends on your macOS and capture settings.

Models that don’t meet our bar
don’t make the cut for any tier

A complete solution matters more than 100 milliseconds. That’s what our competitors miss. We focus on getting the whole answer right: a clear approach broken into digestible steps, in a predictable structure you can follow.

Nine out of ten isn’t good enough. Across 1,000 interviews, that leaves 100 people facing a potentially life-changing setback. We rigorously test our harness and every model against a 99.9%+ accuracy target on internal benchmarks, built from our team’s combined interviewing experience at Microsoft, Google, LinkedIn, Uber, and Amazon.

Coding

Claude Opus 5.5

Systems Design

Claude Opus 5.5

Live transcription

GPT-4o Transcribe

Real-time Suggestions

Claude Haiku

Made to think like you In development

Customize solutions to your preferences
Code how you’re comfortable.

Choose your language and the approach that feels natural. A loop you can trace or recursion you can explain—make the answer your own.

An explicit stack. Every step in sight.

max_depth.pyPython

def max_depth(root):
    stack = [(root, 1)]
    depth = 0
    while stack:
        node, level = stack.pop()
        if node:
            depth = max(depth, level)
            stack += [(node.left, level + 1),
                      (node.right, level + 1)]
    return depth

Your next chapter awaits

Choose your pace, keep the same quality bar

Explore first. Find the plan that fits your preparation.

Free

No Solve Tokens · No payment required

1 Coding and 1 Systems Design copilot session results demo included

Access to AI Interview copilot
20+ verified stealth features tested daily
1 daily unlock from Question Bank

Explore for free

Light

Pro

Best Value

$179.99 / month

Billed monthly

250 Solve Tokens every month

Access to AI Interview copilot
20+ verified stealth features tested daily
Full Question Bank Access
Coding + system-design assistance
Use across unlimited sessions

Renews monthly. Cancel anytime.

Choose Pro 1 Month

FAQ

Frequently asked questions

A few things to know about AiPlusOne,
based on the questions we get the most.

Does it remember work that leaves my screen?

The session retains previously observed context as you change files and continue through follow-ups. The demo illustrates memory within one session, not unlimited memory across future sessions.

Am I in control of screen capture?

You start and stop observation. Selected evidence for a solve is sent to the model provider. See the product’s privacy and verification pages for current behavior and tested configurations.

Is solution customization available now?

The iterative and recursive switch is a design preview. User-defined solution style controls are in development.

What’s included in the free plan?

Explore the interface with one daily unlock from Question Bank, plus one Coding and one Systems Design copilot session results demo. The free plan does not include live AI solves.

Walk in prepared.
Answer with confidence.

Start for free
No credit card required
Upgrade when you’re ready

Get started — it’s free

Your next big opportunity.An AI that keeps up.

Stop overpaying for LLM chat wrappers disguised as stealth interview copilotsYour career deserves better

Observe

Reconstruct state

Structured workspace

Stay with the problem.We’ll keep the pieces together.

The answer. Minus the hunt.

A set, one pass, no repeats.

Keep your hands in the flow.

Your workspace. Your view.

Models that don’t meet our bardon’t make the cut for any tier

Coding

Systems Design

Live transcription

Real-time Suggestions

Customize solutions to your preferencesCode how you’re comfortable.

Choose your pace, keep the same quality bar

Free

Light

Light

Pro

Pro

Walk in prepared.Answer with confidence.

Stay with the problem.
We’ll keep the pieces together.

Models that don’t meet our bar
don’t make the cut for any tier

Customize solutions to your preferences
Code how you’re comfortable.

Walk in prepared.
Answer with confidence.