# ULTRACODE > ULTRACODE is a desktop AI co-pilot for software engineering interviews (macOS and Windows). It answers coding, system design, object-oriented design and verbal interview questions in real time, and is invisible to screen sharing. Free trial: 2 questions, no credit card. Lifetime access: one-time payment of $799, no subscription. ## Main pages - [Home](https://ultracode.ai/): features, platforms, offer letters, pricing and FAQ - [Proof](https://ultracode.ai/proof): how ULTRACODE stays undetectable, with a test you can run yourself - [Prove it in 90 seconds](https://ultracode.ai/undetectable): a test showing which AI interview tools are detectable - [Data science interviews](https://ultracode.ai/datascienceinterview): ULTRACODE for data science interviews ## Comparisons - [ULTRACODE vs competitors](https://ultracode.ai/ultracode-vs-competitors) - [Interview Coder vs ULTRACODE](https://ultracode.ai/interviewcoder-vs-ultracode) - [Cluely vs ULTRACODE](https://ultracode.ai/cluely-vs-ultracode-ai) - [Interview Coder is detectable](https://ultracode.ai/interviewcoderai): proof you can reproduce - [Interview Coder review 2026](https://ultracode.ai/interviewcoderreview2026): detection, security and accuracy - [Interview Coder & Cluely are detectable](https://ultracode.ai/interviewcoderdetectable): run this 90-second test ## Platforms - [CoderPad interview AI](https://ultracode.ai/coderpad-interview-ai) - [HackerRank interview AI](https://ultracode.ai/hackerrank-interview-ai) - [CodeSignal interview AI](https://ultracode.ai/codesignal-interview-ai) ## Policies - [Privacy policy](https://ultracode.ai/privacy) - [Terms of service](https://ultracode.ai/terms)