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© 2025 UXUI Principles. All rights reserved. Designed & built with ❤️ by User Centric Studio LLC

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Terms of Service

Last Updated: November 28, 2025

1. Acceptance of Terms

By purchasing or using UXUIPrinciples.com ("Service"), you agree to be bound by these Terms of Service ("Terms").

Minimum age: 16+ (GDPR requirement for data processing consent)

Binding agreement: These Terms constitute a legally binding contract between you and User Centric Studio LLC.

2. Content License (CC BY-NC-ND 4.0)

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

All 112 UX/UI principles are licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International.

What This Means

  • BY (Attribution) - You must give appropriate credit
  • NC (NonCommercial) - No commercial use without permission
  • ND (NoDerivatives) - No modifications, translations, or adaptations

3. What You CAN Do (Permitted Uses)

Read & Learn

  • Study all 112 principles for personal education
  • Use for professional development and skill building

Apply Principles

  • Use UX concepts in your design work and client projects
  • Apply research-backed principles to your interfaces

Note: The concepts themselves are not copyrightable—only our specific content

Cite with Attribution

  • Quote 1-2 sentences in presentations or articles
  • Reference principles in academic papers
  • Share insights with proper credit

Share Links

  • Share principle URLs on social media
  • Send links to colleagues and students
  • Bookmark and reference in design discussions

Internal Team Use

  • Discuss principles with your design team
  • Reference in internal design reviews (same company only)
  • Use as learning materials within your organization

4. Required Attribution Format

When citing our content, use this format:

"[Principle Name]" by UXUIPrinciples.com
Licensed under CC BY-NC-ND 4.0
https://uxuiprinciples.com/en/principles/[slug]

Example:

"Chunking" by UXUIPrinciples.com
Licensed under CC BY-NC-ND 4.0
https://uxuiprinciples.com/en/principles/chunking

5. What You CANNOT Do (Prohibited Uses)

Commercial Use (NC = NonCommercial)

  • Create and sell paid courses using our content
  • Use in consulting services or workshops (paid)
  • Integrate into competing products or SaaS platforms
  • Include in books, ebooks, or paid publications
  • Monetize through ads, sponsorships, or affiliate links

Derivative Works (ND = NoDerivatives)

  • Translate principles into other languages
  • Create summaries, cheat sheets, or condensed versions
  • Remix or adapt content into new formats
  • Create video courses based on our content
  • Build infographics or visual derivatives

Redistribution

  • Copy-paste content into documents or PDFs
  • Share content via file sharing platforms
  • Republish on blogs, Medium, or other platforms
  • Include in open-source repositories
  • Distribute screenshots or screen recordings

Account Sharing

  • Share your login credentials with others
  • Create group accounts for teams
  • Allow multiple people to use one account

Scraping & Automation

  • Use bots, scrapers, or automated tools to extract content
  • Bypass technical protection measures
  • Mass download principle pages

6. Need Commercial Rights?

If you need to use our content for commercial purposes (corporate training, paid courses, consulting, derivative works), contact us for a custom commercial license.

Commercial Licensing: hello@uxuiprinciples.com

Pricing: Custom quotes based on use case and audience size

7. Lifetime Access (NO Subscriptions)

This is NOT a subscription. You pay once, access forever.

  • One-time payment: $99 (all-inclusive, no hidden fees)
  • Lifetime access: Forever—no expiration date, no recurring charges
  • All 112 principles: Full platform access immediately upon purchase
  • Future updates: New principles and content added at no additional cost

What's Included in Premium Access

  • All 112 research-backed UX/UI principles
  • 336+ real-world examples from leading companies
  • Role-specific guidance (Designers, Developers, PMs)
  • Research citations from MIT, Google, Nielsen Norman Group
  • Part-by-part learning progression (6 progressive parts)
  • Downloadable content for offline reference
  • Light/Dark theme support
  • Mobile-optimized reading experience

8. Content Protection & Security

We implement technical measures to protect our intellectual property and prevent abuse:

Anti-Scraping Measures

  • Rate limiting: 100 requests/min (authenticated), 20 requests/min (anonymous)
  • Bot detection: Blocks Scrapy, Selenium, Puppeteer user agents
  • Honeypot traps: Invisible links that ban automated bots
  • CAPTCHA challenges: For suspicious activity patterns

Anti-Copy Measures

  • DevTools detection: Content obfuscated when browser DevTools open
  • Right-click disabled: Context menu blocked on premium content
  • Text selection disabled: user-select: none on principle content
  • Print watermarking: Account email embedded in printed pages
  • Screenshot detection: Browser API monitoring (where supported)

Forensic Watermarking

  • Visible watermark: Account email in footer of each principle
  • Invisible watermark: Metadata in HTML comments
  • Session tracking: Logs which account accessed which principle
  • Timestamp logging: Records when content was accessed

Purpose: These measures help us enforce the CC BY-NC-ND 4.0 license and detect unauthorized redistribution.

9. Account Termination

We reserve the right to terminate your account immediately, without refund, for:

  • License violations: Commercial use, derivative works, redistribution
  • Scraping or automation: Bot usage, mass content extraction
  • Account sharing: Multiple users on one account
  • Chargeback abuse: Filing chargebacks instead of requesting refunds
  • Terms of Service violations: Any breach of these Terms

No refund upon termination for violations.

Appeal process: Email hello@uxuiprinciples.com within 7 days with evidence.

10. Payment Terms

Accepted Payment Methods

  • Credit cards (Visa, Mastercard, Amex)
  • Debit cards
  • PayPal
  • Bank transfers (via Stripe/Polar.sh)

Payment processor: Polar.sh (Merchant of Record), powered by Stripe Connect

Pricing

  • Platform Access: $99 one-time (lifetime)
  • Currency: USD (US Dollar) - prices may vary by region due to taxes

Taxes

Polar.sh handles all tax compliance:

  • EU: VAT added at checkout (country-specific rates)
  • US: Sales tax where applicable
  • Other regions: Local tax requirements handled by Polar.sh

Refunds

See our Refund Policy for details. Summary: 14-day EU cooling-off period ONLY if you haven't accessed premium content. No refunds after accessing 1+ principles.

11. Disclaimers & Limitations of Liability

AS-IS Basis

The Service is provided "AS IS" and "AS AVAILABLE" without warranties of any kind. We do NOT guarantee:

  • Accuracy or completeness of content (research evolves)
  • Uninterrupted or error-free service (maintenance, downtime)
  • Specific results from applying principles (outcomes vary)
  • Compatibility with all devices or browsers

Limitation of Liability

Maximum liability: $99 (amount you paid for lifetime access)

We are NOT liable for:

  • Indirect damages (lost profits, data loss, business interruption)
  • Consequential damages (project failures, missed deadlines)
  • Punitive damages (exemplary damages)
  • Third-party claims (client disputes, legal issues)

Exception: Gross negligence, willful misconduct, or fraud.

12. Intellectual Property

Our Property

  • All 112 principle content, examples, illustrations
  • UXUIPrinciples™ brand name and logo
  • Website design, code, and infrastructure
  • Research compilations and frameworks

Your Responsibilities

  • Respect our intellectual property rights
  • Follow CC BY-NC-ND 4.0 license terms
  • Provide proper attribution when citing
  • Do not claim our content as your own

DMCA Compliance

If you believe content infringes your copyright, contact us with: Identify infringed work, location on our site, contact info.

DMCA Contact: hello@uxuiprinciples.com

13. Dispute Resolution

Informal Resolution (Required First Step)

Before filing any legal action, you must:

  1. Email hello@uxuiprinciples.com with dispute details
  2. Wait 30 days for us to resolve informally
  3. Engage in good-faith negotiation

Arbitration (If Informal Fails)

  • Binding arbitration: JAMS rules (https://www.jamsadr.com/)
  • Location: San Francisco, California
  • Individual claims only: No class actions, no class arbitration
  • Exception: Small claims court (disputes under $10,000)

Class Action Waiver

You agree to bring claims individually, NOT as part of a class action. Why? Faster, cheaper, more efficient resolution for both parties.

EU Consumers

EU users retain the right to sue in their home country courts. EU consumer protection laws cannot be waived by this agreement.

14. Governing Law & Jurisdiction

United States Users

  • Governing law: Delaware law (without conflict of laws provisions)
  • Jurisdiction: Delaware courts (if arbitration unavailable)

European Union Users

  • Governing law: EU Directive 2011/83/EU (Consumer Rights Directive)
  • Jurisdiction: Your home country courts (cannot be waived)
  • Consumer rights: EU mandatory consumer protections apply

15. Changes to Terms

We may update these Terms to reflect: new features or services, legal or regulatory changes, security or fraud prevention measures, business model adjustments.

Notification

  • Material changes: 30-day email notice before effective date
  • Minor changes: Update "Last Updated" date only

Continued use after changes = acceptance.

Don't agree with changes? Request a refund within 30 days (subject to Refund Policy).

16. Severability

If any provision of these Terms is found unenforceable, the remaining provisions remain in full effect.

17. Entire Agreement

These Terms, together with our Privacy Policy and Refund Policy, constitute the entire agreement between you and User Centric Studio LLC.

18. Contact Us

For Terms-related questions:

General inquiries: hello@uxuiprinciples.com

Commercial licensing: hello@uxuiprinciples.com

Address: User Centric Studio LLC, 18117 Biscayne Blvd, Suite #4080

Response time: 2-3 business days for general inquiries, 5-7 days for legal matters

Legal Information

Service Provider:
User Centric Studio LLC, 18117 Biscayne Blvd, Suite #4080

Content License: CC BY-NC-ND 4.0 (https://creativecommons.org/licenses/by-nc-nd/4.0/)

Governing Law: Delaware (US), EU Directive 2011/83/EU (EU users)

Effective Date: November 28, 2025

For more information, see Privacy Policy, Refund Policy, Cookie Policy.