1. Scope and definitions
- This Policy applies to information we collect, use, store, or transmit through the Service.
- "Personal data" includes information treated as personal information or personal data under applicable law.
- "Tracking" includes tracking as defined by Apple's App Tracking Transparency framework and other applicable platform rules.
2. Controller
- Company: CLOViZ Inc.
- Address: 4-13-7 Akatsutsumi, Setagaya-ku, Tokyo 156-0044, Japan
- Representative: Sotaro Masaki, Representative Director
- Privacy contact: info@cloviz.co.jp
3. Information we collect
We may collect the following information as needed to provide the Service.
| Category | Examples |
|---|---|
| Account and contact information | Name or display name, email address, profile image, language, country or region, and authentication-provider information |
| Identifiers and device information | Our user ID, session information, device ID, advertising identifier, AppsFlyer ID, push token, IP address, operating system, browser, app version, and device settings |
| Usage and analytics information | App launches, pages viewed, clicks, session duration, referral source, advertising campaign, approximate country or region, cookies, and similar technologies |
| Learning and gameplay information | Quiz answers and results, learning history, played hands, actions, game results, matching, rankings, leak analysis, and other study or gameplay records |
| AI and user content | AI chat prompts, hand reviews, conversation history, AI responses, feedback, voice input or transcription data, and content submitted through support or surveys |
| Purchase and subscription information | Products, subscriptions, price, currency, purchase, renewal and expiration dates, refunds, storefront, transaction IDs, receipt-validation results, entitlements, and coin or credit balances and usage |
| Diagnostics and security information | Crash, error, performance, network, audit, and fraud-prevention information |
Payment card details may be handled directly by Apple, Google, Paddle, or another payment provider and not collected by us. We receive transaction information needed to verify purchases and provide entitlements.
4. How we collect information
We collect information:
- when you register, submit content, make a purchase, or contact us;
- automatically through the app, website, cookies, SDKs, and logs when you use the Service;
- from Apple, Google, Paddle, authentication providers, advertising and measurement providers, and other partners; and
- from external services when you choose to connect or share through them.
5. How we use information
We use information to:
- create accounts, authenticate users, and maintain security;
- provide quizzes, lessons, gameplay, rankings, AI chat, and other Service features;
- verify purchases, grant coins and entitlements, manage renewals, cancellations and refunds, and prevent purchase fraud;
- analyze learning progress, personalize the Service, provide recommendations, and improve our products;
- send push notifications, service communications, campaigns, and other permitted messages;
- measure advertising, installs, attribution, and purchase journeys;
- diagnose failures, improve quality and performance, and prevent misuse;
- respond to support, privacy requests, disputes, and legal obligations; and
- create and use aggregated or de-identified statistics.
6. Service providers and external transmissions
We use third-party services including those below. The information sent depends on your device, settings, features used, and consent choices.
| Category and representative providers | Information | Purpose |
|---|---|---|
| Google Analytics and Google Signals | User ID, IP address, device and browser information, page and interaction data, approximate location | Analytics, product improvement, advertising measurement |
| AppsFlyer | AppsFlyer ID, our user ID, hashed email address, device or advertising identifiers, campaign, product, transaction ID, revenue and currency | Install and advertising attribution, fraud prevention |
| Meta Platforms | Device or advertising identifiers, hashed email address, usage and campaign information | Advertising measurement and, with required consent, tracking |
| Firebase services and Sentry | Device and push-token information, crashes, errors, performance and diagnostic interactions | Notifications, diagnostics, quality improvement |
| Cloudflare, Vercel, and Microsoft Azure | IP address, network logs, account information, and Service data stored on our behalf | Delivery, security, hosting, and storage |
| Ahrefs Web Analytics | Page views, referrals, browser and device information, country or region statistics | Traffic and content analytics |
| Anthropic, DeepSeek, or OpenAI | AI prompts, conversation context, hand information, and identifiers or pseudonymous information needed to provide a feature | AI responses, analysis, transcription, and related AI functionality |
| Apple, Google, and Paddle | Account or storefront identifiers, products, transactions, amounts, currencies, subscriptions, and refund information | Payments, verification, subscription management, refunds, fraud prevention |
We review service providers as appropriate and use contracts or other measures to supervise their handling of information. A provider's own privacy policy and terms may also apply.
7. Advertising, tracking, and cookies
- The Service may use cookies, device identifiers, advertising identifiers, and SDKs for analytics, advertising measurement, and fraud prevention.
- On iOS, we request permission through App Tracking Transparency before performing activities that require tracking permission. If you decline, we may still perform measurement that does not use the advertising identifier or is otherwise permitted by platform rules.
- You can manage available choices through device privacy settings, browser cookie settings, notification settings, and settings provided in the Service.
- For Google users who have consented to personalized advertising, Google Signals may associate Service usage with information held by Google.
See Privacy Choices and Data Requests for instructions.
8. AI features
- Content submitted to AI features may be sent to us and an AI provider to generate responses, maintain conversation history, manage usage, protect safety, and improve service quality.
- Do not submit sensitive personal data, confidential information, or third-party information you are not authorized to provide in a free-form AI field.
- Provider retention, data use, and processing locations may vary according to the provider, our contract and settings, and the feature used.
9. Disclosure to third parties
We do not disclose personal data to third parties without consent except:
- as required or permitted by law;
- to protect life, health, safety, or property where consent is impracticable;
- for public-health or child-protection purposes permitted by law;
- to cooperate with a lawful government request;
- to service providers acting within the purposes described in this Policy;
- in connection with a merger, reorganization, financing, or transfer of all or part of our business; or
- through another arrangement, such as joint use or an opt-out disclosure, where permitted and properly notified under applicable law.
10. International processing
Information may be processed by providers or on servers located outside Japan. We take measures required by applicable law, which may include contractual safeguards, reviewing provider security, and providing required information.
11. Retention and account deletion
- We retain information for as long as needed for the purposes in this Policy, our contracts, legal obligations, dispute resolution, fraud prevention, and security.
- When you delete your account, we disable sign-in and delete or replace direct account details such as your name, email address, profile image, and authentication credentials so that the account is anonymized.
- Purchase, refund, accounting, audit and fraud-prevention records, learning or gameplay history, and records required to preserve Service integrity may be retained after removing or pseudonymizing direct identifiers where legally and operationally necessary.
- Deletion from backups and service-provider systems may take a reasonable period.
12. Security
We use reasonable organizational and technical safeguards, including access controls, authentication, protection of data in transit and at rest, logging, monitoring, and oversight of personnel and service providers.
13. Access, correction, restriction, and deletion
Subject to applicable law, you or an authorized representative may request notice of purposes, access, correction, addition, deletion, restriction, erasure, cessation of third-party disclosure, or disclosure of third-party disclosure records. We may request information needed to verify identity or authority.
See Privacy Choices and Data Requests for instructions.
14. Minors
Minors must obtain consent from a parent or legal guardian before using the Service. Regardless of its storefront age rating, the Service does not offer wagering of real money.
15. Changes to this Policy
We may update this Policy to reflect changes in law, platform requirements, providers, or Service features. We will provide reasonable notice of material changes through the Service, website, email, or another appropriate method. Unless otherwise stated, an updated Policy takes effect when posted.


