Privacy Policy

This policy explains what personal data IT Playbook collects, how we use it, and the choices you have. By using the service you agree to this policy.

Last updated: September 11, 2026.

Who we are

IT Playbook ("we", "us") is an online learning service operated by Sergey Okinchuk. You can reach us any time at support@itplaybook.org or via our Support page.

Data we collect

We keep data collection to the minimum needed to run the service:

• Account information. When you sign in with Google, we receive your name, email address, and profile picture from your Google account. When you sign in with Apple, we receive your name and email address, or the private relay address Apple creates if you chose to hide your email. We never receive your Google or Apple password.
• Learning progress. Which pages you've viewed, which lessons you've listened to, and which quizzes you've completed, so your progress follows you across devices.
• Subscription & payment data. Your subscription status and billing history. Card details are entered on, and stored by, our payment processor (Stripe) — we never see or store your full card number.
• Preferences. Settings such as theme, playback speed, and notification choices, stored in your browser and your account.
• Technical data. Basic, standard server and CDN logs (e.g. IP address, browser type) used to operate and secure the service.
• Product-usage analytics (with your consent). If you accept analytics cookies, we collect product-usage events — such as pages viewed, the audio player and quizzes being used — to understand how the courses are used and improve them. If you're signed in, these may be associated with your account. You can decline at any time, and the rest of the service still works.
• Advertising measurement (with your consent). If you accept, we also load the Meta Pixel, which tells Meta that a visit happened so we can measure whether our ads on Facebook and Instagram bring people here. It is not loaded at all unless you accept, and declining keeps everything else working.

How we use it

• To provide the courses, save your progress, and sync it across your devices.
• To process subscriptions and payments.
• To respond to your support requests.
• To maintain the security, integrity, and reliability of the service.
• To send service-related and (with your consent) optional study-reminder or product emails. You can opt out at any time in Settings.

We do not sell your personal data.

Service providers we share data with

We rely on a small number of trusted providers, who process data only on our behalf:

• Google Firebase (Google LLC) — authentication, database, and hosting.
• Stripe, Inc. — subscription billing and payment processing on the website. See Stripe's own privacy policy for how it handles payment data.
• Apple Inc. — sign in with Apple, and subscription billing in the iOS app through the App Store. We receive the subscription's status and dates, never your payment details.
• Google Cloud — hosting, storage, and content delivery.
• PostHog, Inc. — product analytics that helps us understand how the courses are used and improve them. Runs only if you accept analytics cookies; data is processed on PostHog's US Cloud.
• Meta Platforms, Inc. — advertising measurement via the Meta Pixel, so we can tell which of our ads on Facebook and Instagram actually bring people here. Runs only if you accept analytics cookies.
• Resend — email delivery: the service and reminder emails we send to you, and the messages you send us from the Support page.

Cookies & local storage

We use cookies and browser local storage that are essential to sign you in and remember your preferences — these are always on. With your consent, we also use analytics cookies for the product analytics and the advertising measurement described above; the first time you visit we ask, and you can decline. Declining keeps all essential functionality working — neither PostHog nor the Meta Pixel is loaded unless you accept. We do not sell your data.

Data retention

We keep your account and progress data for as long as your account is active. If you delete your account, we delete or anonymize your personal data, except where we must retain limited records (for example, transaction records) to meet legal and accounting obligations.

Deleting your account

You can delete your account yourself, at any time: on this site at Delete your account, or in the iPhone and Android apps under Settings → Profile. You will be asked to sign in again first if your session is more than a few minutes old, because the deletion cannot be undone. It is immediate and permanent. It removes your progress, streak and flashcard schedule, any certificates issued to you and the links to them, your support messages, anything queued to be emailed to you, and the sign-in itself.

If a subscription is still able to bill you, cancel it first — deletion is refused while it can, so that you are never left paying for an account you can no longer sign in to. Payment records held by our payment processor are kept where the law requires it.

Your rights

You can access, correct, export, or delete your personal data. Many actions are available directly in Settings, and deletion has a page of its own; for anything else, email support@itplaybook.org and we'll help. Depending on where you live, you may have additional rights under laws such as the GDPR or CCPA.

Children

The service is not directed to children under 16, and we do not knowingly collect their data.

International users

We operate from the United States, and your data may be processed there and in other countries where our providers operate. We take steps to protect it consistent with this policy.

Changes to this policy

We may update this policy from time to time. We'll change the "Last updated" date above and, for material changes, give you notice through the service.

Contact

Questions about privacy? Email support@itplaybook.org.