Privacy Policy — NicZero

1. On-Device Habit Storage (No Account Required)

Your habit profiles, quit dates, daily nicotine pouch or vape logs, savings calculations, and stepdown preferences stay on your device using Apple's local UserDefaults and App Group container (group.com.niczero.app) to synchronize your progress with your iOS Home Screen and Lock Screen widgets.

We do not require user registration, do not store your habit logs on external servers, and never sell, rent, or share user data with advertisers or data brokers. Subscription verification for optional NicZero Pro plans is handled via RevenueCat as detailed in Section 4 below.

2. Device Permissions We Request

• Photo Library (Add-Only Access): Requested only when you explicitly tap “Save HD Passport Image” or “Save 9:16 Story Poster” to export a milestone card to your camera roll. NicZero cannot read or view your existing photo library.
• Local Notifications & Live Activities: Requested optionally so your device can deliver on-device 30-minute craving delay timer alerts and daily habit check-in notifications. All notifications are scheduled locally on your phone.

3. Data Retention, CSV Export & Instant Deletion

Your habit logs and settings remain on your device only for as long as you keep NicZero installed or until you choose to delete them. At any time inside the app (Settings & Profile), you can:

• Export your complete timestamped log history as a portable .csv file via “Export Full Activity Log (CSV)”.
• Delete individual intake or craving log entries with a single tap on the delete icon.
• Permanently erase all local app and widget data immediately by tapping “Delete All Local Data & Reset App”.

4. In-App Purchases & Subscription Validation (StoreKit 2 & RevenueCat)

NicZero Pro subscriptions (Annual with 3-Day Free Trial, Monthly, and Weekly plans) are billed directly by Apple via StoreKit 2 and verified using RevenueCat.

For subscription verification, RevenueCat receives purchase receipts, an anonymous app user ID, and technical data such as IP address, device model, operating system version, app version, and country/region. RevenueCat does not receive your name, email address, or your nicotine habit logs. You can review RevenueCat's Privacy Policy at https://www.revenuecat.com/privacy, and you may request deletion of your anonymous subscription records at any time by emailing [email protected].

NicZero never receives or stores your credit card or Apple Pay billing details. You can manage or cancel your subscription at any time in iOS Settings > Apple Account > Subscriptions.

5. Contact & Privacy Inquiries

NicZero is developed and published by Ferhat Selcuk Akbas, an individual developer operating under the EchoRank brand. Ferhat Selcuk Akbas is the party responsible for the app and for this Privacy Policy.

If you have any questions about this Privacy Policy or NicZero's data practices, please contact us at:

• • Email: [email protected]
• • Support Center: https://echorank.com/niczero/support