Solve Any Problem Including System Design Instantly!
Not just LeetCode
System Design
Object-Oriented Design
Trivia
And Everything Else!
Real-time answers that run deeper in your OS than any monitoring software can reach — 100% Undetectability Guaranteed!
BUILT WITH INPUT FROM TECH LEADS AND STAFF SOFTWARE ENGINEERS FROM
From coding challenges to system design and live Q&A, Ultracode equips you with undetectable, step-by-step AI support — giving you confidence in every scenario.
Not just LeetCode
System Design
Object-Oriented Design
Trivia
And Everything Else!
On-screen questions? Solved
Verbal questions? Answered
Hard follow-ups? Fully covered
Screen + audio = 10/10 answers
Windows + Mac? Zero trace
Full screen sharing? Invisible
CoderPad, HackerRank, CodeSignal? 100% undetectable everywhere!
Not visible to
anyone but you
Windows + Mac? Zero trace
Not just answers—real understanding
Every line of code, fully explained
ThoughtFlow™ = step-by-step mastery
Custom-Trained AI – Fine-tuned specifically for SWE interviews
Complete Coverage – All languages, algorithms, and advanced system design
Proven Results – Trusted by candidates hired at Google, Jane Street, and more!
$218K
New York, NY
$344K
New York, NY
$387K
San Jose, CA
$641K
Mountain View, CA
$322K
San Francisco, CA
$486K
San Francisco, CA
$329K
San Francisco, CA
$514K
San Francisco, CA
$228K
Bellevue, WA
$379K
San Francisco, CA
Latest Models from OpenAI and Claude – including GPT 6-Astra, Claude Fable 5.1 , and more!
Finetuned AI – Not just raw foundational models! We finetuned the most powerful reasoning models specifically for SWE interviews
LeetCode Hards Made Easy – Built to crack even the toughest questions
Every Platform Covered – CoderPad, HackerRank, CodeSignal, Chime, Zoom & more
Undetectablity Validated Daily– We maintain enterprise grade proctor accounts to test our undetectability daily and guarantee your protection unlike cheaper competitors
Maintains Active Tab Focus on the Interview – OS-native hotkey commands which bypass the September 5th CoderPad update!
CoderPad
Code Signal
Codility
Zoom
WebEx
HackerRank
Chime
Codebyte
Google Meet
Microsoft Teams
Ex-FAANG Engineers + AI Researchers – Working 6 days a week to ship constant updates!
Lifetime Membership, Always Improving – Faster, smarter, and 100% undetectable
Weekly Upgrades - Our competitors stopped shipping updates months ago, but ULTRACODE keeps evolving every single week
We have enterprise grade proctor accounts with the largest coding interview platforms and video conferencing services. We test ULTRACODE daily to ensure undetectability in the face of anti-cheating updates.
ULTRACODE is completely undetectable on HackerRank in browser. However, if you download HackerRank Desktop and grant view all system access, it is impossible for any application to be 100% undetectable. Thankfully less than 3% of companies require candidates to download speciality software for interviews because the permissions required to detect ULTRACODE will also expose every single file, photo, and crypto key on your device which is a huge liability and PR risk for employers.
and many more
Don’t settle for anonymous screenshots of endorsements. Here’s actual offer letters earned by ULTRACODE users at Google, Meta, Amazon and more!
Offer Unlocked with
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Most interview AI apps are completely detectable and we can prove it with a simple test you can run right now on your own device.
You shouldn't have to trust us. You shouldn't have to trust a Reddit post either. The only evidence that matters is a test you can run yourself, right now on your own device.
Open any keyboard event viewer (google "keyboard
event viewer" — plenty of free browser based
options will show up like this one → )
Open any keyboard event viewer (google "keyboard event viewer" — plenty of free browser based options will show up like this one → )
Launch the free trial of whatever AI interview tool
you want to test
Launch the free trial of whatever AI interview tool you want to test
Press its solve hotkey
Check if the keystroke gets logged
If any hotkeys are logged, the tool is detectable. If a browser tab can see an AI tool's hotkey, so can CoderPad, HackerRank, and CodeSignal. They run at the same or higher privilege level on your machine.
They register keystrokes. We intercept them below the visibility layer — where it's IMPOSSIBLE for any browser based proctoring software to detect
Input is intercepted before it ever reaches user space — leaving nothing for proctoring software to detect.
Built on signing infrastructure, platform-specific entitlements, and kernel-adjacent hooks that took months of engineering to build. Competitors can't retrofit this — it requires rebuilding their product from scratch.
$799
Normal Price: $1,799
Unlimited LIFETIME Access
Fine-tuned for SWE interviews
Works with all platforms and coding environments
Invisible to screen sharing
Supports LeetCode problems, system design, object oriented design, trivia, and everything else!
Here at ULTRACODE, we aim to offer the best product on the market. This means the best foundational models including OpenAI GPT 5.6 Sol and Fable 5, world class fine-tuning by ex-FAANG AI researchers, unlimited usage, and stellar customer support. Unlike our competitors, we do not aim to be a mass market product which could get patched any day. We have proctor accounts with all of the leading interview platforms which we monitor consistently to ensure undetectably to protect your privacy.
We guarantee ULTRACODE is 100% undetectable in all browser-based interviews, on every platform — including CoderPad, HackerRank, and CodeSignal. That said, if you’re downloading specialty software onto your device to conduct the interview — the kind that requires full system access upon install — then no application or file on your device is truly undetectable. Any competitor telling you otherwise is lying to you.
In our experience, roughly 97% of companies conduct interviews in the browser, because requiring candidates to install on-device monitoring software is a massive privacy intrusion. The system permissions needed to detect ULTRACODE would also give the interview platform access to every sensitive photo, file, and crypto key on your device — a huge liability and PR risk for employers. These spyware-style interview applications do exist — HackerRank Desktop being the most notable — yet as of late 2026, not a single major tech company has adopted one of them for their interviews.
ULTRACODE is a desktop application custom built for software engineering interviews. It can solve any technical interview question that's shown on your screen or spoken verbally with a single click or hot key command tap. No typing required whatsoever!
Our free trial allows you to answer two questions of your choosing. It is not meant to be used in interviews but rather to test out the functionality and quality of responses that our product is able to generate. Some of our more advanced proprietary undetectablity features are disabled in the free trial to prevent interview use; however the trial version is still invisible to screensharing and has all the other features explicitly advertised on our website (hotkeys, verbal question answering ability, ThoughtFlow™, etc.)
Because ULTRACODE is a desktop application and not a browser extension, it supports every application (Zoom, Google Meet, Microsoft Teams, WebEx, Chime, etc) as well as every browser based coding environment (LeetCode, CoderPad, HackerRank, CodeSignal etc)
ULTRACODE launched a full year before apps like Interview Coder and Cluely and had features on day one in 2024 that most of our competitors still don’t have even today. We ship new updates every week to stay ahead of interview platforms and spend nearly $10k per month to maintain enterprise grade protector accounts on the platforms like CoderPad, HackerRank, CodeSignal and Codility to GUARANTEE undetectability. In a third party security test by CSN, ULTRACODE was the only app they found that is still undetectable in 2026.
All purchases are non-refundable. Your cancellation will take effect at the end of the current paid term. We have this policy because we have previously dealt with customers using our software for a couple of interviews to land their dream job and then immediately asking for a refund. However, we want you to be 100% confident in your purchase decision and that is why we offer a generous free trial experience with no credit card required so you can thoroughly try before you buy.
We support both PC and Mac operating systems. ULTRACODE requires you are running at least Windows 8 or macOS Ventura (Version 13) or any operating system more recent than that. However, we recommend updating to least Windows 11 or Mac OS 15.6 or later to guarantee you have access to our latest and most advanced undetectability features. Our 100% undetectability claims are based on the assumption that you are running Windows 11 or Mac OS 15.6 or later
ULTRACODE is a lightweight application that should run flawlessly on any modern PC or Mac with a minimum of 8 GB of RAM.
This varies by company. Many companies have embraced having their software engineers use AI tools on the job to boost their productivity. Some companies are starting to allow candidates to use AI tools during the interview itself to access their potential in conjunction with AI.
No, we never save any photos or videos from your usage of ULTRACODE to protect your privacy nor do we share your usage with any third party beyond what is required to fulfill the product offering (e.g. API calls to foundational model partners OpenAI and Anthropic). With many of our lower priced competitors, this is not the case!
We currently only offer annual subscription plans. We charge based on the value we create for our users not based of duration of use. Most of our customers only need our product for a couple of weeks to get their dream job.
Unlike our competitors, we offer unlimited use of our product once you purchase instead of having stringent usage credits. However, given the immense compute cost required to provide unlimited usage for life, we prohibit account sharing between multiple users and track devices per account to enforce this policy. If you have a lifetime access membership however, we do allow you to transfer your license to a new device should you have an issue with your previous device.
Yes, ULTRACODE supports a variety of languages including Spanish, French, Portuguese, Italian, German, Mandarin, Korean, Japanese and more.
ULTRACODE supports every programming language. We even dynamically select the one you need based on which one you have selected in your IDE. That means there is no need to worry about config.