Interview Solver
Real-time AI copilot for live coding and system design interviews
- Category
- Coding & Development
- Pricing
- Monthly plan $59/mo; Interview Cycle plan $149 per 3 months (about $50/mo); free trial with 10 AI messages, no credit card required.
- Best for
- Interview Solver fits software engineers, computer science students, bootcamp graduates, and career changers who are actively interviewing for roles that lean on live LeetCode-style coding rounds and system design whiteboarding, and who want an AI assistant that works inside the call itself rather than only in offline practice.
- Official site
- interviewsolver.com
- Last updated
- August 2026
Interview Solver is a technical-interview preparation product built around a native desktop application rather than a browser extension or web app. Its core pitch is a live-assist overlay: candidates run it during an actual video interview, and it is built to stay hidden from screen-sharing on Zoom, Microsoft Teams, and Google Meet while capturing the coding window via a screengrab tool and transcribing spoken interview questions in real time. Responses come back as code with complexity notes, or as generated system design diagrams, triggered through global hotkeys so the candidate never has to alt-tab away from the call.
What sets it apart from a plain 'AI answers my coding questions' tool is the layer built specifically around live-interview mechanics: a companion mode that lets a second device (like a phone) send commands so keystrokes on the interview machine itself stay minimal, aimed at proctored setups such as HackerRank's downloadable client that log local input. The company also positions cost as a differentiator, publishing direct comparison pages against named competitors (Interview Coder, UltraCode, Final Round AI) that show its $59/month plan running well under their listed prices. Beyond the live-assist feature, the site bundles a more conventional prep library — company-specific question hubs, role-based tracks, and free standalone tools like an ATS resume checker and a Big O cheat sheet.
Interview Solver fits software engineers, computer science students, bootcamp graduates, and career changers who are actively interviewing for roles that lean on live LeetCode-style coding rounds and system design whiteboarding, and who want an AI assistant that works inside the call itself rather than only in offline practice. It's a natural fit for candidates comparing it against pricier live-assist tools, since its own positioning leans on being materially cheaper for a similar feature set. It's a poor fit for anyone who wants a purely above-board prep tool, for candidates interviewing at companies or through assessment platforms that explicitly ban AI assistance (a live-assist overlay is exactly the kind of tool those policies target), or for anyone who'd rather build interview skills through practice than lean on real-time answers during the actual conversation.
Key features
Invisible interview overlay
A desktop overlay built to stay out of screen-share output on Zoom (up to a stated version), Microsoft Teams, and Google Meet, and to stay off macOS's Activity Monitor.
Screengrab-based solving
A capture tool sends the contents of a selected window to the AI, which returns solution code with syntax highlighting for LeetCode-style problems.
Real-time voice transcription
Listens to the interview audio and transcribes spoken questions from both interviewer and candidate, turning them into prompts for the AI without manual typing.
System design diagram generation
Produces flowcharts and system design structures for architecture-style interview rounds, not just algorithmic code answers.
Global hotkeys
Keyboard shortcuts trigger AI responses without switching windows or alt-tabbing out of the video call or coding environment.
Companion mode
Lets a second device, such as a phone, issue remote commands so fewer keystrokes are logged on the primary interview machine, aimed at proctored tools like HackerRank's downloadable app.
Document-grounded answers
Candidates can upload a resume, job description, or project docs so responses can reference their actual background instead of generic solutions.
Practice hub and free tools
Company-specific question banks, role-based tracks (frontend, backend, full-stack, mobile, data, DevOps), algorithm drills, plus free utilities like an ATS resume checker, STAR method builder, Big O cheat sheet, and salary lookup.
Pricing breakdown
Free Trial
- 10 AI messages included to test the copilot
- Access to free practice tools (ATS checker, cheat sheets, etc.)
- No commitment before upgrading
Monthly
- Full live-interview copilot access (screengrab solving, voice transcription, system design diagrams)
- Global hotkeys and companion mode
- Document upload for grounded answers
- Access to the full practice question hub
Interview Cycle
- Same copilot feature set as the Monthly plan
- Lower effective monthly cost for an active, multi-round job search
- Full practice hub and free-tool access included
Pros and cons
Pros
- The overlay is engineered to stay invisible during screen sharing across Zoom, Microsoft Teams, and Google Meet, which is the specific technical problem most 'AI cheat tool' products are judged on.
- Companion mode lets a second device trigger commands, aimed squarely at proctored coding tests such as HackerRank's downloadable client that watch for local keyboard activity on the interview machine.
- It goes beyond LeetCode-style code answers by also generating system design diagrams and flowcharts, so it covers architecture-round interviews as well as algorithmic ones.
- Document upload lets the AI reference an uploaded resume or job description, which is meant to make answers sound more like the candidate's own background rather than boilerplate solutions.
- On its own comparison pages, Interview Solver's $59/month price undercuts named competitors it lists, such as Interview Coder at $299/month, UltraCode at a $799 one-time fee, and Final Round AI at $90/month.
- The site includes free standalone prep tools (ATS resume checker, STAR method builder, Big O cheat sheet, salary lookup) that are usable without a paid subscription.
Cons
- The stealth, live-assist feature set requires installing a native desktop app on macOS or Windows; there is no equivalent browser-only or mobile experience for that core use case.
- The product's central use case — surfacing AI answers live and undetected during an actual interview — runs against the honor codes and terms many employers, recruiters, and assessment platforms enforce, and being caught can mean disqualification or a rescinded offer.
- Its own site scopes video-platform compatibility to a specific version ceiling (Zoom up to 6.16 as stated), so an interviewer using a newer build could affect the overlay's invisibility without warning.
- Usage and satisfaction figures the company publishes on its own marketing pages (large user counts, high recommend rates) are self-reported claims, not numbers verified by an independent review platform like G2 or Capterra.
- Pricing is purely subscription-based, with monthly or 3-month terms and no perpetual one-time-purchase option, so a long job search can add up compared to flat-fee alternatives.
- The free trial is capped at a small number of AI messages (10), which limits how thoroughly someone can test real interview scenarios before paying.
Alternatives to Interview Solver
Frequently asked questions
How much does Interview Solver cost?
Interview Solver offers a free trial (10 AI messages, no credit card required), a Monthly plan at $59/month with no long-term contract, and an Interview Cycle plan at $149 for 3 months, which works out to roughly $50/month.
Does Interview Solver stay hidden during screen sharing?
Yes, that's the product's core design goal — it's built as a native desktop overlay meant to stay invisible in screen shares on Zoom, Microsoft Teams, and Google Meet, and to not appear in macOS's Activity Monitor. Compatibility is tied to specific software versions, so results can vary if a platform updates.
Is using Interview Solver during a live interview considered cheating?
Many employers, recruiters, and assessment platforms treat live AI assistance during a technical interview as a violation of their interview integrity or terms-of-service policies, even when the tool itself is undetected. Candidates should weigh that risk — including disqualification or a rescinded offer if discovered — before using it in a real interview.
What interview and video platforms does Interview Solver support?
It's built to work alongside Zoom (up to a stated version), Microsoft Teams, Google Meet, and browser-based coding IDEs, with a companion mode aimed at proctored tools like HackerRank's downloadable client.
Does Interview Solver have a free trial?
Yes. Interview Solver offers a free trial with 10 AI messages included and no credit card required, letting candidates test the copilot before choosing the Monthly or Interview Cycle paid plan.
Ready to try Interview Solver?
Head to the official site to explore pricing and start a free trial where available.
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