App Legal Information

Privacy Policy

This privacy policy is applicable to the QuitBook: Stop Smoking Insights app (hereinafter referred to as "Application") for mobile devices, which was developed by Brotix Lab (hereinafter referred to as "Service Provider") as a Freemium service. This service is provided "AS IS".

Data Storage & Control

Your sensitive progress data ("Quit Data") is stored by default exclusively on your mobile device. If you choose to use the optional Cloud Sync feature (via Google Sign-In), your data will be securely synced to your private cloud account for backup and multi-device access. You retain full ownership and can delete your account or local data at any time.

Data Categories & Usage

Health & Cessation Data (Health Disclosure):

The Application collects your smoking logs, craving records, FTND addiction test results, and emotional journal entries. This data is pseudonymized and stored using AES-GCM-256 encryption in your private cloud account. This data is not purely anonymous but is protected with industry-standard security protocols.

Personal Identity Information:

When using Google Sign-In, your name and email address are collected to verify your account, provide Cloud Sync functionality, and offer technical support.

Information Collection and Use

The Application acquires the information you supply when you download and register the Application. Registration with the Service Provider is not mandatory. However, you might not be able to utilize some of the features offered by the Application (like cloud backup) unless you register.

Automatically Collected Information

The Application may collect certain information automatically, including:

The type of mobile device and unique device ID
The IP address of your mobile device
Your mobile operating system
The type of mobile Internet browsers you use
Your device's Advertising ID (e.g., AdMob AdID)
Information about the way you use the Application

Algorithmic Analysis & CBT

The Application uses rule-based algorithms and statistical analysis to detect 10 key cognitive distortions in your CBT journal entries. Your personal data is not sent to external AI models or profiling engines for this purpose; the analysis is performed strictly through our predefined rule sets.

Third-Party Services

Data is periodically transmitted to external services to aid in improving the Application. The Application utilizes third-party services that have their own Privacy Policies:

Google Play ServicesLink AdMob (Approx. Location & AdID)Link Firebase AnalyticsLink RevenueCat (Subscription Sync)Link TCMB EVDS (via our servers)Link

During the use of RevenueCat, your Firebase UID is transmitted for subscription verification. During the use of AdMob, approximate location data via your IP address may be used for ad targeting. Financial data (exchange rates, etc.) is sourced from TCMB EVDS via our secure cloud servers; no personal data is transmitted.

Disclosure to Third Parties

The Service Provider may disclose User Provided and Automatically Collected Information:

As required by law, such as to comply with a subpoena, or similar legal process;
When they believe in good faith that disclosure is necessary to protect their rights, protect your safety or the safety of others, investigate fraud, or respond to a government request;
With their trusted services providers who work on their behalf, do not have an independent use of the information we disclose to them, and have agreed to adhere to the rules set forth in this privacy statement.

Opt-out Rights

You can stop all collection of information by the Application easily by uninstalling it. You may use the standard uninstall processes as may be available as part of your mobile device or via the mobile application marketplace or network.

Children

The Service Provider does not use the Application to knowingly solicit data from or market to children under the age of 13. If a parent or guardian becomes aware that his or her child has provided us with information without their consent, he or she should contact us so that we can delete such information from our servers.

Payments & Subscriptions

For any premium features or subscriptions purchased within the Application, all payment processing is handled exclusively by the Apple App Store or Google Play Store. The Service Provider does not collect, process, or store your credit card or financial information. We use RevenueCat to manage and verify your subscription status.

Security

We provide procedural safeguards to protect the information we process. For example, all data transmitted to third-party services is encrypted in transit using industry-standard protocols.

KVKK / GDPR Rights

As a data subject, you have the right to access your data, request correction, request deletion (right to be forgotten), and object to data processing activities. You can exercise these rights directly within the app (Settings > Danger Zone > Delete Account), by writing to info@myquitbook.com, or by using the data deletion form below.

Changes

This Privacy Policy may be updated from time to time for any reason. The Service Provider will notify you of any changes to the Privacy Policy by posting the new Privacy Policy on this page. You are advised to consult this Privacy Policy regularly for any changes, as continued use is deemed approval of all changes.

Data Retention & Deletion

The Service Provider will retain User Provided data for as long as you use the Application. Automatically Collected information is retained for up to 24 months. You can request deletion directly within the app (Settings > Danger Zone > Delete Account), via info@myquitbook.com or the form below.

Direct link for data deletion requests per Google Play requirements: https://myquitbook.com/download/data-deletion

Web Deletion Request Form

Contact Us

If you have any questions regarding privacy while using the Application, please contact the Service Provider via email at info@myquitbook.com.

Effective as of: 2026-05-05

Terms & Conditions

These terms and conditions apply to the QuitBook: Stop Smoking Insights app for mobile devices that was created by Brotix Lab as a Freemium service.

Agreement

Upon downloading or utilizing the Application, you are automatically agreeing to the following terms. It is strongly advised that you thoroughly read and understand these terms prior to using the Application.

Intellectual Property

Unauthorized copying, modification of the Application, any part of the Application, or our trademarks is strictly prohibited. Any attempts to extract the source code of the Application, translate the Application into other languages, or create derivative versions are not permitted. All intellectual property rights related to the Application remain the property of the Service Provider.

Medical Disclaimer

The insights, tracking tools, and information provided by QuitBook are for motivational and informational purposes only. The Application is NOT a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician regarding a medical condition.

Service Modification

The Service Provider reserves the right to modify the Application or charge for its services at any time and for any reason. Any charges will be clearly communicated. The Application stores and processes personal data that you have provided to the Service Provider in order to provide the Service. It is your responsibility to maintain the security of your phone and access to the Application.

Device Responsibility

The Service Provider cannot always take responsibility for the way you use the Application i.e. You need to make sure that your device stays charged - if it runs out of battery and you cannot turn it on to avail the Service, the Service Provider cannot accept responsibility.

Accuracy & Reliability

With respect to the Service Provider's responsibility for your use of the Application, when you are using the Application, it is important to bear in mind that although they endeavor to ensure that it is updated and correct at all times, they do rely on third parties to provide information to them so that they can make it available to you. The Service Provider accepts no liability for any loss, direct or indirect, as a result of your relying wholly on this functionality of the Application.

Connectivity & Usage

Some functions of the Application require an active internet connection. The Service Provider cannot be held responsible if the Application does not function at full capacity due to lack of access to Wi-Fi or data allowance exhaustion. By using the application, you accept responsibility for any such charges, including roaming data charges.

Termination

The Service Provider may terminate its use at any time without providing termination notice to you. Upon any termination, (a) the rights and licenses granted to you in these terms will end; (b) you must cease using the application, and (if necessary) delete it from your device.

Contact Us

If you have any questions regarding these Terms & Conditions, please contact the Service Provider via email at info@myquitbook.com.

Last Updated: 2026-05-05