Frequently Asked Questions

Multi-turn assessment is written interview practice with follow-up questions and feedback based on a reference answer. Premium includes a monthly allowance of these sessions, and Premium Plus offers unlimited multi-turn practice under its plan terms. This is separate from live Voice interviews, which use Voice credits. AI feedback is a practice aid and can make mistakes.

Coding questions are evaluated using problem-specific tests, and quizzes are compared with their answer keys. Written answers receive AI feedback against a reference answer and key concepts. Use the feedback to guide practice and review the reasoning; it is not a guarantee of interview performance.

The library focuses on ML, data, and AI interview preparation through questions, coding exercises, quizzes, and explanations. Explore the demo to assess the format and difficulty for your needs. Please report a suspected error to [email protected] so we can review it.

The library contains interview-style questions and coding exercises for ML, data, and AI topics. A question should not be treated as a verified question from a particular employer or interview unless that item provides supporting provenance. Practice questions and reference answers are preparation material, not a prediction of what an employer will ask.

Reach out to [email protected] with your purchase details so we can review your request. If you've made an accidental purchase or forgotten to cancel, please contact us as soon as possible. A refund is not automatic.

You can cancel at any time. From the dashboard, click the user icon in the top right, hover over your active plan to reveal the 'Manage' option, then click 'Cancel Subscription' on the subscription management page.

For a scheduled period-end cancellation, access continues through your current trial or paid billing period. Afterward, paid written practice requires an active subscription. Voice credits are separate. Billing & Subscription shows your current status and dates, and Stripe processes payments.

Open Billing & Subscription to review the changes available for your current plan. Check the displayed charge, effective date, and renewal terms before confirming. Contact [email protected] if your subscription needs attention or the available options are unclear.

Contact [email protected] with the subject 'Delete my account'. The pilot support response target is two business days; that is not a deletion-completion promise. After ownership is verified, the application target for active-system deletion and applicable provider deletion requests is seven calendar days. Backups target a maximum 30-day rolling window and must reapply deletions after restoration; provider and historical-backup verification may still be outstanding. Payment and accounting records are separate and follow the applicable statutory schedule. See our privacy and retention notice for the current scope and limitations.

Premium and Premium Plus are written-practice subscriptions; the demo is a preview, not an ongoing Free plan. Eligible new accounts receive one free Voice interview. Additional consumer Voice interviews use separate, non-expiring purchased credits. The sales-assisted Founding Company Pilot is USD 199/month plus applicable taxes for 50 candidate interviews per paid month, maximum 30 minutes each, with manual approval. Monthly pilot credits expire without rollover; purchased top-ups remain separate. See the company offer or contact [email protected].