StealthCoder

StealthCoder vs InterviewCoder (2025): The Ultimate AI Interview Assistant Showdown

2025-08-29

StealthCoder vs InterviewCoder (2025): The Ultimate AI Interview Assistant Showdown

In the world of coding interviews, AI tools are emerging as secret weapons. Two popular contenders in 2025 are StealthCoder and InterviewCoder. Both position themselves as undetectable interview AI assistant tools for technical interviews. In this in-depth comparison we break down their core features, pricing, platform support, speed, accuracy, system design capabilities, user experience, and even the ethical questions around using an AI LeetCode AI tool during interviews. By the end you will see why StealthCoder edges out its rival and how it can provide the coding interview overlay advantage you need.

Core Features and Capabilities

Both StealthCoder and InterviewCoder aim to assist with live coding interview problems in real time. Here are the differences:

  • StealthCoder: A real-time overlay assistant for algorithmic coding challenges and system design prompts. With a simple keyboard shortcut you capture your screen and StealthCoder instantly returns a clean solution with explanation and complexity analysis. The overlay is fully invisible on screen share and only you can see it. It is not just a ChatGPT wrapper but a desktop app designed for real interviews. StealthCoder also includes StealthDesign for system design interview help, giving outlines and architectural suggestions. This makes it useful for both coding and design rounds.
  • InterviewCoder: Primarily targets LeetCode style coding interview questions. It runs as a floating panel where you capture the coding prompt and then generate code solutions with explanations. InterviewCoder markets itself as “No.1 Undetectable AI for LeetCode interviews.” It focuses only on algorithmic problems and does not handle behavioral or system design rounds. Its interface has multiple hotkeys and buttons for control which can feel clunky in high pressure settings.

Both claim invisibility. StealthCoder uses a minimalist one-shortcut overlay while InterviewCoder requires multiple commands. StealthCoder also adds system design coverage which InterviewCoder lacks.

Pricing and Subscription Plans

  • StealthCoder: 7 day free trial with 15 credits. Paid plans are $15 per month billed annually or $40 billed monthly. Both plans include unlimited usage for coding and system design, top AI models, and 24/7 support. Pricing is straightforward and more affordable.
  • InterviewCoder: Free plan with very limited features. Pro plans cost $25 per month billed annually or $60 billed monthly. Pro unlocks unlimited usage, full solution visibility, and support. There is no system design support included at any price.

Verdict: StealthCoder gives more features for less cost. InterviewCoder is almost double the yearly price for a narrower tool.

Platform Support and Compatibility

  • StealthCoder: Available on Windows, macOS, and Linux. Works on all major platforms like Zoom, Teams, Google Meet, HackerRank, CodeSignal, and more. Setup takes less than a minute. Data stays local by default which increases privacy.
  • InterviewCoder: Available on Windows and macOS only. No Linux support. Requires certain Zoom versions or specific settings on some platforms to remain invisible. On Amazon Chime and some macOS versions it can be unstable. Users need to run compatibility checks before interviews.

Verdict: StealthCoder has broader platform coverage and simpler setup with fewer caveats.

Stealth and Undetectability

Both tools promise invisibility but there are differences:

  • StealthCoder: Built for stealth from the ground up. Overlay does not show on screen share or recordings. No trace left behind. Tested on all major interview platforms with no extra configuration needed.
  • InterviewCoder: Uses overlay tricks as well but requires certain app versions or settings. Reports exist of it being flagged on some platforms. Some users have been caught using it in real interviews. There were also concerns about security in the past.

Verdict: StealthCoder has a cleaner record of staying invisible.

Response Speed and Accuracy

  • StealthCoder: Very fast. Generates answers almost instantly. Uses top AI models for high accuracy. Handles medium and hard problems well and provides code plus explanation and complexity. Also supports system design responses.
  • InterviewCoder: Generates solutions in a few seconds. Works fine for easy and some medium problems. Accuracy drops on hard questions where it often fails. Independent reviews showed around 60 percent success on medium and 25 percent on hard problems. No system design help.

Verdict: StealthCoder is more reliable on hard problems and the only option for design questions.

Customization and System Design Support

  • StealthCoder: Lets you pick preferred language. Provides code, explanation, and complexity analysis. Has StealthDesign mode for scalable system design guidance. Keeps data local by default. Covers both coding and design interviews.
  • InterviewCoder: Lets you select coding language. Focuses only on algorithmic coding. No system design support. One-shot solutions with limited customization.

Verdict: StealthCoder offers more flexibility and covers more interview types.

UX and Onboarding Experience

  • StealthCoder: Minimalist and simple. One shortcut brings up the overlay which disappears when you click outside. No clutter, no distractions. Onboarding is quick and easy.
  • InterviewCoder: Floating panel with multiple shortcuts. Requires memorizing commands to move, hide, and reset. Can feel unstable under pressure. Setup requires running compatibility checks.

Verdict: StealthCoder is smoother and easier to learn.

Ethical Implications

Both tools sit in a gray area. Using AI during live interviews is not approved by employers and can be considered cheating. However many argue that tech interviews are flawed and that AI tools can level the playing field. The risk is real: if caught you could lose the opportunity.

  • InterviewCoder has had controversies including reports of detection, data leaks, and instability.
  • StealthCoder focuses on privacy by processing locally and positions itself as a helper to improve clarity and speed.

Verdict: If someone decides to use such a tool, StealthCoder reduces risk with better privacy and a focus on learning.

Conclusion: Why StealthCoder Wins in 2025

StealthCoder and InterviewCoder both try to solve the same problem but StealthCoder comes out ahead.

  • StealthCoder covers both coding and system design.
  • StealthCoder is cheaper with straightforward pricing.
  • StealthCoder works on Windows, Mac, and Linux with no caveats.
  • StealthCoder is more accurate on hard problems.
  • StealthCoder has simpler UX.
  • StealthCoder focuses on privacy and reliability.

InterviewCoder is still useful for coding practice but in head to head comparison StealthCoder is the more robust and reliable interview AI assistant in 2025. For candidates looking for an invisible coding interview overlay that also provides system design interview help, StealthCoder is the tool that gives you confidence and an edge.

Keywords: interview ai assistant, leetcode ai tool, system design interview help, coding interview overlay, StealthCoder vs InterviewCoder.