Privacy Policy
This Privacy Policy explains how Devellux Inc. (“Company,” “we,” “us,” or “our”) collects, uses, stores, discloses, and otherwise processes personal data in connection with Readberry, including the readberry.app website, mobile application, and related services (collectively, the “Service”).
By accessing or using the Service, the customer (“Customer”, “you”) acknowledges that personal data may be processed as described in this Privacy Policy.
This Privacy Policy applies to personal data processed when Customers: access or use the Service, create or use an account, upload, submit, or process materials through the Service, purchase subscriptions or Extra Usage packages, contact support, interact with the website, mobile application, or related communications.
Controller
The controller of personal data processed in connection with the Service is:
Devellux Inc.
8 The Green, STE A, Dover, Kent, DE, 19901, USA
Contact email: support@readberry.app
Types of Information We Process
Depending on how the Customer uses the Service, the Company may process the following categories of personal data.
Account Information: Email address, password hash, account identifiers, subscription status, account settings, authentication data, and related account records.
Customer Materials: Files, text, images, articles, documents, photos, OCR inputs, and other materials uploaded, submitted, transmitted, or otherwise made available by the Customer through the Service.
Processed Content and Usage Data: Information relating to the Customer’s use of the Service, including uploads, processed pages, text-to-speech usage, playback events, quiz interactions, timestamps, feature usage, session activity, limits, Extra Usage consumption, and related service logs.
Device and Technical Data: IP address, device type, operating system, browser type, application version, language settings, crash data, diagnostics, log data, approximate location derived from IP address, and similar technical information.
Payment Information: Subscription status, purchase records, billing period, transaction identifiers, payment method type, country, currency, amount, tax information, refund status, and other limited payment-related information made available by payment processors. The Company does not store full payment card details. For accounting, tax, and fraud-prevention purposes, we may retain limited card data (e.g., first six and last four digits) solely for transaction identification and verification.
Marketing, Attribution, and Analytics Data: Advertising identifiers; email address; campaign identifiers; referral data; device identifiers; analytics events; attribution records; A/B testing results; and information about interaction with the website, application, or marketing campaigns.
Support and Communications Data: Information provided in support requests, feedback, correspondence, and service-related communications.
Sensitive Data: The Company does not intentionally request sensitive personal data. Customers should not upload or submit sensitive personal data unless strictly necessary and lawful to do so.
Sources of Personal Data
The Company may collect personal data directly from the Customer, automatically through the Customer’s use of the Service, and from third parties such as payment processors, web funnel and checkout service providers, attribution providers, analytics providers, authentication providers, and marketing partners, to the extent permitted by applicable law.
Legal Bases for Processing
To the extent required by applicable law, the Company processes personal data on one or more of the following legal bases:
Performance of a contract: where processing is necessary to create and manage accounts, provide the Service, process Customer Materials, deliver subscriptions or Extra Usage, respond to requests, or otherwise perform the Company’s contractual obligations.
Legitimate interests: where processing is necessary for the Company’s legitimate interests, including operating, securing, maintaining, improving, analyzing, and supporting the Service, preventing fraud and misuse, enforcing policies, and defending legal claims, provided such interests are not overridden by the Customer’s rights and freedoms.
Legal obligation: where processing is necessary to comply with applicable law, lawful requests, court orders, tax obligations, accounting requirements, consumer protection requirements, or other legal obligations.
Consent: where processing is based on the Customer’s consent, including, where required by applicable law, certain marketing, advertising, analytics, or cookie-related activities. Consent may be withdrawn at any time, without affecting the lawfulness of processing carried out before withdrawal.
Purposes of Processing
The Company may process personal data for the following purposes:
- to provide, operate, maintain, and improve the Service;
- to create, authenticate, and manage Customer accounts;
- to process Customer Materials and generate Processed Content;
- to provide text-to-speech, quiz, structuring, OCR, and related Service functions;
- to process purchases, subscriptions, renewals, cancellations, refunds, and Extra Usage packages;
- to monitor usage limits, consumption, and billing accuracy;
- to provide customer support and respond to inquiries;
- to send service-related notices, security alerts, billing messages, and administrative communications;
- to send marketing communications where permitted by law;
- to conduct analytics, product improvement, diagnostics, quality assurance, and A/B testing;
- to attribute marketing channels and measure campaign performance;
- to detect, investigate, prevent, and address fraud, abuse, unauthorized activity, and security incidents;
- to enforce the Terms of Use, Subscription Terms, Refund Policy, and other applicable policies;
- to comply with legal obligations and protect the Company’s rights and legitimate interests.
Cookies and Similar Technologies
The Service may use cookies, SDKs, pixels, local storage, device identifiers, and similar technologies for authentication, security, functionality, analytics, attribution, and marketing purposes.
These technologies may include:
- Strictly necessary technologies, used to enable core Service functions, security, session management, authentication, and payment-related flows;
- Functional technologies, used to remember preferences and improve usability;
- Analytics technologies, used to understand how the Service is used and to improve performance and features;
- Advertising and attribution technologies, used to measure marketing effectiveness, attribute installs or conversions, and improve campaign performance.
Customers may manage certain cookie settings through browser settings and certain device identifiers through device privacy settings.
Where required by applicable law, the Company will obtain consent before using non-essential cookies or similar technologies. In jurisdictions where consent is not required for specific technologies, the Company may use such technologies on another lawful basis permitted by applicable law.
Additional information regarding cookies:
Customers may manage cookie preferences through browser settings and certain device or platform privacy settings. Disabling cookies or similar technologies may affect the availability or functionality of some parts of the Service.
Personalized Advertising Choices
You can adjust your device settings to disable personalized ads:
- iOS (iPhone/iPad): open the Settings app on your device > Select Privacy > Apple Advertising > Deselect Personalized Ads.
- Mac: choose the Apple menu > System Settings, then click Privacy & Security (in macOS Monterey or earlier, go to System Preferences, click Security & Privacy, then select the Privacy tab). Then select Apple Advertising > Deselect Personalized Ads.
- Android: open the Settings app on your device > Select Privacy > Advanced > Ads > Toggle “Opt out of Ads Personalization”.
- Windows: click Start > Settings > Privacy, select the General tab then toggle off the following option: Let apps use my advertising ID for experiences across apps (turning this off will reset your ID).
Disclosure of Personal Data
The Company may disclose personal data to the following categories of recipients, to the extent necessary for the purposes described in this Privacy Policy:
- payment processors, billing providers, and subscription management providers;
- hosting, cloud, infrastructure, storage, and security providers;
- analytics, attribution, diagnostics, and product improvement providers;
- OCR, artificial intelligence, text-to-speech, and related technology providers;
- customer support, email, communication, and operational service providers;
- professional advisers, auditors, insurers, legal counsel, and compliance providers;
- competent authorities, regulators, courts, law enforcement, or other third parties where disclosure is required by law or reasonably necessary to protect rights, safety, security, or the Service;
- an acquirer, successor, investor, or other relevant third party in connection with a merger, acquisition, financing, reorganization, sale of assets, or similar corporate transaction.
Depending on the circumstances, such recipients may act as processors, service providers, independent controllers, or recipients under applicable law.
Third-Party Services
The Service may integrate with or rely on third-party providers, including Stripe, Adapty, FunnelFox, AppsFlyer, Mixpanel or similar providers, as well as hosting, analytics, OCR, artificial intelligence, and text-to-speech providers.
Where third-party services are used, personal data may be processed in accordance with this Privacy Policy and, where applicable, the privacy practices of the relevant third party.
The Company does not control third-party websites or services that are not operated by the Company.
Data Retention
The Company retains personal data only for as long as necessary for the purposes described in this Privacy Policy, including to provide the Service, comply with legal obligations, resolve disputes, maintain business records, enforce agreements, prevent fraud, and protect the Company’s rights and legitimate interests.
Retention periods may vary depending on the nature of the data, the purpose of processing, the sensitivity of the data, technical requirements, and legal or regulatory obligations.
Customer Materials and Processed Content may be retained while the account remains active and for a limited period thereafter, unless deletion is requested earlier or longer retention is required or permitted by applicable law.
The Company may retain transaction, subscription, tax, accounting, fraud-prevention, and dispute-related records for longer periods where necessary or required by applicable law.
When retention is no longer necessary, personal data may be deleted, anonymized, or otherwise irreversibly de-identified.
International Transfers
The Company is established in the United States and may process personal data in the United States and in other countries where the Company or its service providers operate.
Where personal data is transferred internationally, the Company will take steps required by applicable law to ensure that appropriate safeguards are implemented for such transfers.
Data Security
The Company implements reasonable technical, organizational, and administrative measures designed to protect personal data against unauthorized access, disclosure, loss, misuse, alteration, or destruction.
However, no method of transmission, storage, or processing is completely secure, and the Company cannot guarantee absolute security.
Customer Rights
Depending on the Customer’s location and applicable law, the Customer may have the right to:
- request access to personal data;
- request correction of inaccurate or incomplete personal data;
- request deletion of personal data;
- request restriction of processing;
- object to certain processing;
- request data portability;
- withdraw consent where processing is based on consent;
- opt out of certain marketing communications;
- object to or limit certain advertising or analytics processing;
- request review of certain decisions based solely on automated processing, where applicable;
- lodge a complaint with a competent data protection authority, depending on applicable law.
The Company may need to verify the Customer’s identity before responding to a request. Certain rights may be subject to limitations, exceptions, or conditions under applicable law.
Requests may be submitted to: support@readberry.app
Children
The Service is not directed to children under 16, or such higher age as may apply under local law.
The Company does not knowingly collect personal data from children in violation of applicable law. If the Company becomes aware that personal data has been collected from a child in violation of applicable law, the Company may delete such data and suspend or terminate the related account.
Changes to this Policy
The Company may update this Privacy Policy from time to time.
The updated version will be made available through the website, application, or other appropriate means, and the “Last updated” date will be revised accordingly. Where required by applicable law, the Company will provide additional notice or obtain consent in connection with material changes.
Contact Us
Please also feel free to contact us if you have any questions about this Policy:
Devellux Inc.,
8 The Green, STE A, Dover, Kent, DE, 19901, USA
Last updated: Apr 24, 2026