Privacy Policy

Mexiv · com.mexiv.deck

Effective Date: October 10, 2026
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Introduction

Welcome to Mexiv, a TCG deck management application designed for competitive card game players. Mexiv helps you manage deck lists, record match results, compare deck configurations, and track your deck evolution across metas and tournament seasons.

This Privacy Policy explains how we collect, use, and protect information when you use Mexiv. We are committed to handling your data with transparency, minimalism, and respect. We collect only what is strictly necessary to operate the app's core features — nothing more.

By using Mexiv, you agree to the practices described in this policy. If you have any questions, please contact us at Mexiv@gmail.com.

1

Information We Collect and How We Use It

Mexiv collects the minimum data necessary to provide its features. The table below details every category of data we collect, why we collect it, and how it is processed.

Data Type Purpose Processing Method
Deck list content (card names, quantities, notes) Core feature: storing and managing your deck configurations and version history Stored locally on your device only; never uploaded to any server
Deck photographs (camera / photo library) Photographing physical deck lists for logging and archiving Stored locally on your device. No image content is transmitted to any external service.
Circuit Brief analysis data (mana curve, chain nodes, archetype positioning) Generating local deck performance evaluation and optimization suggestions Processed locally on your device using built-in analysis. No data is transmitted to any external server or third-party service.
Device information (model, OS version, language, region) Ensuring app compatibility and diagnosing technical issues Anonymized; used locally and in aggregate analytics; not linked to any personal identifier
Anonymous usage statistics (feature interactions, crash reports) Improving app stability and user experience Aggregated and anonymized; cannot be used to identify any individual user
In-App Purchase receipt (whether a one-time purchase succeeded) Verifying and unlocking purchased features or consumable items Received from Apple; contains only a success/failure status — no payment credentials. See Section 4‑A for details.
Minimum-data principle: We collect only what is functionally required for the specific feature being used. We do not build profiles, track behavior across apps, or use your data for advertising.
2

Local Analysis and Circuit Brief

Mexiv includes a built-in analysis feature called Circuit Brief that helps you evaluate your deck's performance characteristics. This analysis is performed entirely on your device using local computation — no data is transmitted to any external server or third-party service.

Circuit Brief analysis covers:

  • Mana curve distribution and resource density
  • Chain node consistency and combo reliability
  • Anti-interruption resilience assessment
  • Archetype positioning and matchup context
  • Top three optimization priorities for your deck

All analysis data remains on your device. The Circuit Brief feature reads your locally stored deck list and performs all calculations on-device. No deck content, analysis results, or any other data is ever sent to a remote server.

No third-party processing: Mexiv does not use any external AI service, cloud analysis platform, or third-party data processor for its analysis features. Every computation happens locally within the app sandbox on your device.

Your control: You can use all deck management features of Mexiv without ever using Circuit Brief. The analysis is entirely optional and you choose when to run it. Because all processing is local, no consent prompt for data transmission is needed — your data never leaves your device.

3

No Account or Login System

Mexiv does not offer account registration or login of any kind. You can access all features of Mexiv without creating an account.

We do not collect any account-type identity information, including but not limited to:

  • Usernames or display names
  • Passwords or security credentials
  • Phone numbers
  • Email addresses (the developer contact email listed in this policy is solely for support inquiries and is never collected from users)
  • Full legal names, birth dates, gender, or government-issued ID numbers
  • Third-party account credentials such as Apple ID, Google, or Facebook login tokens

There is no user database. Mexiv maintains no server-side user profiles, no login sessions, and no session tokens tied to individual users.

All app data is stored locally on your device. Your deck lists, version history, photographs, and analysis results are stored only on the device you use. Uninstalling Mexiv permanently removes all local data.

Because no account exists, there are no "account recovery," "account merge," or "account deletion" processes. Deleting the app is the complete and immediate mechanism for removing all data associated with your use of Mexiv.

4

Information Sharing and Third-Party Data Processing

We do not sell, rent, trade, or otherwise transfer your data to any third party for commercial purposes. Mexiv does not transmit your deck lists, photographs, or analysis data to any external service.

Complete list of data-sharing scenarios:

  • Apple (crash reporting & analytics): Anonymized, aggregated crash data and usage statistics may be shared with Apple via their standard iOS frameworks. This data cannot identify you individually.
  • No other third parties receive any data from Mexiv.

No third-party data processing for analysis: All deck analysis, including Circuit Brief evaluations, is performed locally on your device. Mexiv does not rely on any external AI platform, cloud processor, or third-party service for its core features.

We may disclose information if required by law, court order, or to protect the safety of users, provided such disclosure is limited to the minimum scope legally required.

4–A

Payment and Billing – One-Time Purchases Only

Mexiv does not offer any subscription, auto-renewal, recurring billing, or trial-to-paid service. All paid features are available exclusively through one-time In-App Purchases.

Payment model: Mexiv offers one-time consumable In-App Purchases (e.g., coins or credits) processed entirely through the Apple App Store. There are no membership plans, no billing cycles, no cancellation flows, and no recurring charges of any kind.

What Mexiv does not collect: Mexiv does not access, store, or process your credit card number, bank account details, Apple ID password, or any other payment credentials. All payment transactions are handled exclusively by Apple.

What Mexiv receives from Apple: After a purchase is completed, Apple sends Mexiv a receipt indicating only whether the purchase was successful. This receipt does not contain your payment method details, card number, or any financial information.

Refunds: Refund requests are handled directly by Apple under App Store policies. Mexiv does not have access to your payment history and cannot process refunds independently.

5

Your Data Rights

You have the following rights with respect to your data, to the extent applicable under applicable law:

  • Access: Request information about what data we hold about you
  • Correction: Request correction of inaccurate data
  • Deletion: Request deletion of your data
  • Export / Portability: Request a copy of data we hold in a portable format
  • Withdrawal of Consent: Withdraw consent for data processing at any time
  • Objection: Object to certain types of data processing

How to exercise your rights — local data: Because all Mexiv data is stored locally on your device with no server-side account, the most direct and complete method to delete all your data is to uninstall Mexiv from your device. This immediately and permanently removes all deck lists, photographs, version history, and cached content.

How to exercise your rights — contact us: For any data requests that cannot be addressed by uninstalling the app (e.g., questions about anonymized analytics), please contact us by email:

We will respond to all verified privacy requests within 30 days. Please use the subject line format: [Mexiv] - Privacy Inquiry.

Note: Because Mexiv has no account system, there is no "account deletion" process. Uninstalling the app is the complete equivalent — it removes all data immediately and requires no additional steps from us.

6

Data Security and Children's Privacy

Security measures we employ:

  • Local data protection: Data stored on your device is protected by iOS's built-in hardware encryption and app sandboxing
  • No external transmission: All deck data and analysis remain on your device; no data is sent to any external server
  • Minimal data surface: We reduce security risk by collecting and storing as little data as possible
  • Access control: Only the Mexiv app process can access its own local data; no external service has standing access to your local storage
  • No centralized server: The absence of a user database eliminates the risk of large-scale data breaches from server-side attacks

Despite these measures, no system is completely immune to security risks. We continuously review and improve our security practices.

Children's Privacy: Mexiv is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe that a child under 13 has provided us with personal information, please contact us immediately at Mexiv@gmail.com. Upon verification, we will promptly delete all such information from our records.

For users in the European Economic Area, we comply with GDPR requirements regarding the processing of data for minors. For users in California, we comply with COPPA and CCPA provisions relating to minors.

7

Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, legal requirements, or other factors. When we make changes, we will update the Effective Date at the top of this document.

How we notify you of significant changes:

  • An in-app notice or banner will appear the first time you open Mexiv after a material policy update
  • For significant changes that affect how we handle your data, we will provide a summary of what changed and why
  • The updated policy will be accessible within the app at all times

Continued use: Continuing to use Mexiv after a policy update takes effect constitutes your acceptance of the revised policy. If you do not agree with the updated terms, please discontinue use of Mexiv and uninstall the app to remove all local data.

We encourage you to review this policy periodically to stay informed about how we protect your information. THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.

8

Contact Us

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

Developer: Mexiv
App: Mexiv (com.mexiv.deck)
Contact Email:

Recommended email subject format: [Mexiv] - Privacy Inquiry

We aim to respond to all privacy-related inquiries within 30 business days. For urgent matters involving potential data security incidents, please indicate "URGENT" in your subject line.