User agreement
Updated 4 October 2026.
The English translation is provided for convenience. In case of discrepancies, the Russian agreement applies.
Payments are not connected yet. You can use the free trial and view the plans; selecting Pay shows a temporary payment-unavailable message.
1. General provisions
Service administration and operator: the author of YudUi.
Contact for support, data requests and payments: [email protected]. Support.
This agreement governs use of yudui.dev, the account area and the YudUi Windows appearance application. License purchase terms are set out separately in the public offer.
Before registration and purchase, read this agreement, the public offer and the privacy policy. If you do not accept these terms, stop using the service.
2. Application and license
YudUi is a Windows 11 appearance application. A license grants use of the selected Lite or Full features for the specified period. Paid access does not transfer ownership of the application or its source code.
Lite includes the dock, window controls, quick settings and built-in presets. Full adds animations and effects, a custom Start menu and search, advanced settings, custom presets and schedules. Lite requires version 0.3.2 or later.
3. Account and security
The account area requires an email address and password. New accounts verify their email with a code. Use an email address you can access, keep passwords and verification codes private, and report suspected unauthorized access to support.
A license key is intended for its account owner. Do not publish or resell it. The account area shows device limits and validity; a standard purchase covers one computer. Device binding can be reset up to three times per month.
4. Plans and access delivery
Before payment, the user sees the edition, duration and exact price in rubles. Weekly, monthly, annual and lifetime licenses are available. A lifetime license has no fixed expiry date; it is not a promise that server infrastructure will operate forever.
After payment is confirmed, the server issues the selected license in the account area. Buying the same edition again extends its duration; another edition creates a separate key. Returning from a payment page alone does not confirm payment.
Each purchase is paid separately. Automatic renewal and recurring charges are not currently used. Payment terms and methods are shown before purchase confirmation.
5. Free trial
The three-day trial provides Full features free of charge, once per account, browser and computer. No bank card is needed and no automatic charge occurs when the trial ends.
6. Lawful use and intellectual property
Use the application lawfully and respect others’ rights. Bypassing licensing, sharing other users’ keys, attacking the service, abusing trials and submitting unlawful content in support or suggestions are prohibited.
Rights to the application, its code and original materials remain with their respective rightsholders. Third-party themes, icons and materials must be used according to their licenses.
7. Application operation and access restrictions
The application changes Windows appearance; individual effects depend on the operating system and other applications. Test the features you need during the trial before buying. If a problem occurs, disable effects and contact support.
Technical faults and temporary maintenance may occur. Access may be restricted for violations of this agreement, confirmed abuse or applicable legal requirements. Contact support about an access restriction.
8. Refunds
If the application does not launch or work on the buyer’s computer, a refund request may be submitted within 14 days of payment. If payment succeeds but no key is delivered, contact support for access delivery or a refund.
Include your account email, order number and a description of the issue. Write to [email protected] or create an account support ticket. Never send your account password or complete card details.
The agreement and public offer do not limit mandatory user rights under applicable law.
9. Privacy
Data categories, processing purposes, cookies, email providers and data request procedures are described in the privacy policy.
10. Changes and contacts
The current dated agreement is always available before and after sign-in. Changes do not retroactively alter the price of an order already paid. Use the support contacts provided for application, payment and refund questions.
Contact for support, data requests and payments: [email protected]. Support.