Fungibull.ai — Privacy Policy

This Privacy Policy explains how Vtail Ltd (“we”, “us”, “our”, registered at 20-22 Wenlock Road, London, N1 7GU, United Kingdom) collects, uses, stores, and shares information when you use the Fungibull.ai website, application, and any related services (collectively, the “Service”). By using the Service, you agree to the practices described in this Privacy Policy. If you do not agree, please do not use the Service.

Fungibull.ai is a tool that generates personality-based persona cards from publicly available blockchain wallet data. The Service is designed purely for entertainment, social sharing, and fun — it is not a financial tool, investment service, or advisory platform. We are committed to transparency about what we collect and why.

1. Information We Collect

1.1 Information You Provide

When you use the Service, you may provide the following information directly:

• Blockchain wallet addresses (including addresses on any supported blockchain network or associated naming services) that you submit to the Service for a persona reveal.
• Account registration information, if you choose to create an account, which may include your name, email address, username, password, or third-party login credentials.
• Payment and billing information, if you purchase any paid features, subscriptions, or digital goods. Payment processing is handled by third-party payment processors; we do not store full payment card details.
• Email address, if you sign up for notifications, newsletters, or other communications.
• Any feedback, correspondence, or communications you send to us.

1.2 Information Collected Automatically

When you access or use the Service, we may automatically collect:

• Device and browser information (e.g. device type, operating system, browser type and version, screen resolution).
• Usage data and interaction events (e.g. pages visited, features used, button clicks, reveal counts, share actions) collected via third-party analytics tools. Wallet addresses are not sent to our analytics provider; only hashed, anonymous event data is recorded.
• IP address, which may be used for rate limiting, fraud prevention, security, and approximate geolocation (country or region level only).
• Error and performance data collected via third-party error tracking services for debugging and service reliability.
• Referral source, URL parameters, and session information.
• Log data, including access times, pages viewed, and the page you visited before navigating to the Service.

1.3 Blockchain Data

When you submit a wallet address, we retrieve publicly available on-chain data associated with that address via third-party blockchain data providers. This data may include transaction history, token balances, NFT holdings, and related metadata across supported blockchain networks. This data is publicly available on the blockchain and is not private or personal data in the traditional sense, though we treat it with care.

1.4 AI-Generated Content

We use third-party artificial intelligence services to generate the personality copy, commentary, and other text content on your persona card. Summarised wallet data (not raw personal identifiers such as your IP address or device information) may be sent to our AI provider to generate this content. Our AI provider’s data handling is governed by their own privacy policy and terms of service.

2. Cookies and Tracking Technologies

We and our third-party service providers may use cookies, local storage, pixels, and similar tracking technologies to operate and improve the Service. These may include:

• Strictly necessary cookies required for the Service to function (e.g. rate limiting, session management, authentication, caching preferences).
• Analytics cookies and tracking technologies used to understand how visitors interact with the Service. Our analytics are configured to be privacy-focused and do not track individual users across external websites.
• Performance and error tracking technologies to detect and diagnose issues.
• Functional cookies that remember your preferences and settings (e.g. display preferences, authentication state).

You can manage or disable cookies through your browser settings. Disabling certain cookies may affect your ability to use the Service or certain features. We may update the tracking technologies we use from time to time and will update this section accordingly.

3. How We Use Your Information

We use the information we collect for the following purposes:

• To provide, operate, and maintain the Service, including generating persona cards, caching results, rendering shareable images, and managing user accounts.
• To process transactions and manage billing for any paid features, subscriptions, or digital goods.
• To improve and develop the Service, including analysing usage patterns, identifying bugs, and optimising performance.
• To personalise your experience and deliver content relevant to your interests.
• To enforce rate limits and prevent abuse, fraud, or unauthorised use.
• To communicate with you, including responding to your enquiries, sending transactional messages (e.g. purchase confirmations), and, if you have opted in, sending marketing or promotional communications.
• To comply with legal obligations and enforce our Terms and Conditions.
• To protect the security and integrity of the Service and our users.

4. How We Share Your Information

We do not sell your personal information. We may share information in the following circumstances:

• Service Providers. We use third-party services to operate the Service, including blockchain data providers, AI content generation services, analytics providers, error tracking services, hosting and infrastructure providers, and payment processors. Each provider receives only the data necessary to perform its function and is subject to its own privacy policy.
• Publicly Shared Content. If you share your persona card via social media, download the card image, or use the shareable link feature, the content of your card (including archetype, stats, and commentary) will be visible to anyone who views the shared link or image. Wallet addresses included in shared URLs are public blockchain addresses.
• Legal Requirements. We may disclose information if required to do so by law, regulation, legal process, or governmental request, or if we believe disclosure is necessary to protect our rights, the rights of others, or to prevent harm.
• Business Transfers. If Vtail Ltd is involved in a merger, acquisition, reorganisation, or sale of assets, your information may be transferred as part of that transaction. We will notify you of any such change.
• With Your Consent. We may share information for other purposes with your explicit consent.

5. Data Storage and Retention

Persona card data (including the wallet address, archetype result, generated text, and associated metadata) is stored in our databases and caching infrastructure. Reveal results may be cached temporarily and stored on a longer-term basis to power features such as leaderboards, archetype statistics, and administrative tools.

If you create an account, your account information is retained for as long as your account remains active. If you request account deletion, we will delete or anonymise your data within 30 days, subject to any legal obligations requiring us to retain certain data.

If you wish to request deletion of your reveal data or account, please contact us at support@fungibull.com. We will process your request within 30 days.

Analytics and error tracking data are retained according to our third-party providers’ respective retention policies.

6. Data Security

We implement reasonable technical and organisational measures to protect the information we hold, including encrypted connections (HTTPS), access controls, rate limiting, and secure hosting infrastructure. However, no method of electronic storage or transmission over the internet is completely secure. We cannot guarantee absolute security and are not responsible for unauthorised access resulting from factors beyond our reasonable control.

7. International Data Transfers

Vtail Ltd is based in the United Kingdom. Our hosting and third-party service providers may process data in jurisdictions outside the UK, including the United States and the European Economic Area. Where data is transferred outside the UK, we rely on appropriate safeguards such as standard contractual clauses or adequacy decisions to ensure your data is protected in accordance with applicable data protection law.

8. Your Rights

Depending on your jurisdiction, you may have certain rights in relation to your personal data, including:

• The right to access the personal data we hold about you.
• The right to request correction of inaccurate data.
• The right to request deletion of your data, subject to legal obligations.
• The right to restrict or object to certain processing of your data.
• The right to data portability where applicable.
• The right to withdraw consent at any time, where processing is based on consent.
• The right to opt out of marketing communications at any time.

To exercise any of these rights, please contact us at support@fungibull.com. We will respond within 30 days. If you are a UK or EEA resident and believe we have not adequately addressed your concerns, you may lodge a complaint with the Information Commissioner’s Office (ICO) or your local data protection authority.

9. Children’s Privacy

The Service is not directed to individuals under the age of 18. We do not knowingly collect personal information from children. If we become aware that a child under 18 has provided us with personal information, we will take steps to delete such information promptly. If you believe a child has provided us with personal data, please contact us at support@fungibull.com.

10. Third-Party Links and Services

The Service may contain links to third-party websites, services, or platforms (including social media platforms, blockchain explorers, and wallet providers). We are not responsible for the privacy practices or content of those third parties. We encourage you to review their privacy policies before providing any information to them.

11. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. When we make material changes, we will update the “Last Updated” date at the top of this document and may notify you through the Service, by email (if you have provided one), or by other means we deem appropriate. Your continued use of the Service after any changes constitutes your acceptance of the revised Privacy Policy.

12. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy, please contact us at:

Vtail Ltd
20-22 Wenlock Road, London, N1 7GU, United Kingdom
Email: support@fungibull.com