Please read these terms carefully before using SD Primer.
Effective date: March 2026
By accessing or using SD Primer, you agree to be bound by these Terms of Service. If you do not agree to these terms, you may not use the service. Your continued use of SD Primer constitutes acceptance of any updates or modifications to these terms.
SD Primer is a mobile-first learning platform designed to help software engineers prepare for system design interviews. The service includes daily multiple-choice questions, spaced repetition reviews, streak tracking, progress dashboards, and interactive system design exercises. Features may vary based on your subscription plan.
You must create an account to use SD Primer. You are responsible for maintaining the security of your account credentials and for all activity that occurs under your account. You agree to provide accurate and complete information when creating your account and to update it as necessary.
You agree to use SD Primer only for lawful purposes and in accordance with these terms. You may not:
All content on SD Primer — including questions, explanations, diagrams, design patterns, and interface elements — is the intellectual property of SD Primer and its licensors. You may not copy, modify, distribute, or create derivative works based on this content without explicit written consent.
SD Primer is provided on an "as is" and "as available" basis. We make no warranties, express or implied, regarding the reliability, accuracy, or availability of the service. We do not guarantee that use of SD Primer will result in any particular interview outcome or career advancement.
To the fullest extent permitted by law, SD Primer and its affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising out of or related to your use of the service. Our total liability for any claim shall not exceed the amount you paid for the service in the twelve months preceding the claim.
We reserve the right to suspend or terminate your account at our discretion if you violate these terms or engage in conduct that we determine to be harmful to the service or other users. You may delete your account at any time by contacting support. Upon termination, your right to use the service ceases immediately.
These Terms of Service shall be governed by and construed in accordance with applicable laws, without regard to conflict of law principles. Any disputes arising from these terms or your use of SD Primer shall be resolved through binding arbitration or in the courts of the applicable jurisdiction.
We may revise these Terms of Service at any time. When we make material changes, we will notify you through the service or via email. Your continued use of SD Primer after such changes constitutes acceptance of the revised terms.
If you have any questions about these Terms of Service, please contact us at:
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