Terms of Use

App: DNS Checker
Developer: Josef Dave Reyes Llorente
Effective date: August 25, 2026

Agreement

These Terms of Use (“Terms”) govern your use of the iOS application DNS Checker (the “App”) provided by Josef Dave Reyes Llorente (“we,” “us,” or “our”). By downloading, installing, or using the App, you agree to these Terms, Apple’s Licensed Application End User License Agreement (or any custom EULA presented in the App Store), and the App’s Privacy Policy and Content Rights notice.

If you do not agree, do not use the App.

The App

The App provides on-device DNS diagnostic tools, including single-domain lookups, reverse DNS lookup, in-session results, optional share-sheet export, and optional Pro features such as additional record types, custom DNS resolvers, DNS propagation checks, raw dig-style output, DNSSEC status indicators, batch lookup, and a Share Sheet extension. Optional Pro features are unlocked through a one-time Apple In-App Purchase.

The App is a consumer diagnostic and visualization tool. It is not a certified network monitoring system, security audit platform, or authoritative source for DNS or DNSSEC status. Do not rely on it as the sole basis for security-critical, compliance, or production infrastructure decisions.

Eligibility and Accounts

You must be able to form a binding agreement under applicable law and comply with App Store age and account requirements. The App does not create a separate developer account; access is through your Apple ID and device as managed by Apple.

Network Use

Lookups require network access to contact DNS resolvers. You are responsible for using the App in compliance with applicable law, your network policies, and the terms of any resolver or service you query. DNS query and response handling is described in the Privacy Policy.

Acceptable Use

You agree not to:

• Use the App for unlawful purposes or in violation of others’ rights
• Interfere with or disrupt the App’s normal operation
• Attempt to circumvent Pro purchase or restore mechanisms except through Apple’s supported restore flows
• Use the App to abuse, overload, or attack DNS infrastructure or third-party systems
• Misrepresent App output as certified professional, legal, or security audit results
• Copy, reverse engineer, or redistribute the App except as allowed by law or Apple’s terms

Purchases

Optional Pro unlocks are sold as a one-time In-App Purchase processed by Apple. Pricing, billing, taxes, refunds, and restores are handled under Apple’s App Store terms and policies. We do not operate a separate payment processor for the App.

Intellectual Property

The App and related materials are protected by intellectual property laws. Ownership and usage limits are described in the Content Rights notice. These Terms do not transfer ownership of the App to you.

Disclaimer of Warranties

To the maximum extent permitted by law, the App is provided “as is” and “as available,” without warranties of any kind, whether express, implied, or statutory, including implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement.

DNS results, timing, propagation comparisons, and DNSSEC indicators are approximate and may vary by resolver, network conditions, caching, and settings. Do not rely on the App as the sole basis for security, compliance, infrastructure cutovers, or emergency response.

Limitation of Liability

To the maximum extent permitted by law, Josef Dave Reyes Llorente will not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of data, profits, or business, arising from or related to your use of the App, even if advised of the possibility of such damages.

To the maximum extent permitted by law, total liability for claims relating to the App will not exceed the amount you paid for Pro features in the App during the twelve (12) months before the claim, or zero if you only used free features.

Some jurisdictions do not allow certain limitations; in those cases, the limitation applies to the fullest extent permitted.

Apple Relationship

These Terms are between you and Josef Dave Reyes Llorente, not Apple. Apple is not responsible for the App or its content. Apple has no obligation to provide maintenance or support for the App. In the event of any failure of the App to conform to an applicable warranty, you may notify Apple, and Apple may refund the purchase price of the App (if any) as required by Apple’s policies; to the maximum extent permitted by law, Apple has no other warranty obligation. Apple is a third-party beneficiary of these Terms and may enforce them against you regarding your use of the App.

Changes

We may update these Terms by posting a revised version on this page and updating the effective date. Continued use of the App after changes become effective constitutes acceptance where permitted by law.

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