Privacy Policy for Taper
Last Updated: July 8, 2026
Taper ("the App", "we", "us", or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.
Taper is designed as a habit-tracking tool. To maximize your privacy, your personal usage data—including smoking frequency, target intervals, daily log timestamps, optional context notes, profile preferences (such as age range and gender), app settings, and PIN/biometric lock configuration—is stored locally on your device in a SQLite database.
The App does not require you to create an account with your name, email address, or phone number. We do not operate a backend database that stores your habit logs.
You may export your journal data as a CSV file through the App’s settings. Export is initiated by you and shared only through your device’s share sheet.
To keep the App free (for non-Premium users), improve stability, and provide optional AI features, we use the following third-party services:
Google AdMob (Advertising)
We use Google AdMob to display advertisements to non-Premium users. AdMob may collect and use your device’s Advertising ID, IP address, and general location data to serve personalized or non-personalized ads. Premium subscribers do not see banner advertisements.
Learn more: Google Privacy & Terms
Firebase Crashlytics (Error Reporting)
If the App crashes or encounters a serious error, we collect anonymous crash reports to help us fix issues. These reports may include your device model, operating system version, app version, and technical state at the time of the crash. We may also record whether Premium is active (premium: true/false) as a non-identifying diagnostic attribute. This data is not linked to your name or email.
Learn more: Firebase Privacy
Firebase Authentication (Anonymous)
For Premium AI features, the App may create an anonymous Firebase user session on your device. This generates a random Firebase User ID (UID) used only to authenticate requests to our AI proxy. No email, phone number, or real-world identity is collected through this process.
Google Play Billing (In-App Purchases)
Premium subscriptions are processed entirely by Google Play. We do not receive or store your payment card details. Google provides us with subscription status information (such as product ID and purchase state) so we can enable Premium features on your device.
Learn more: Google Play Privacy
Premium AI features (daily schedule suggestions, coping tips, and context reviews) send limited, habit-related data from your device to our Cloudflare Worker proxy, which then forwards a processed request to the Google Gemini API.
Depending on the feature, this may include:
Time-of-day timestamps (e.g., "10:00 AM", "2:30 PM")
Log counts and tapering parameters (e.g., daily allowance, wake time)
General craving context (e.g., morning/evening, mild/strong craving)
Optional context notes you choose to write in the App
Your selected app language (for localized AI responses)
We do not send your name, email, phone number, or other directly identifying information to the AI services.
Our Cloudflare Worker may temporarily store:
Rate-limit counters by IP address (short-lived)
Daily usage quotas by anonymous Firebase UID (short-lived, typically 24 hours)
We do not use your habit data to train AI models, and we do not sell your data.
Taper is a "Lifestyle" application intended solely for informational and habit-tracking purposes. It is not a medical device. The App is not intended to diagnose, treat, cure, mitigate, or prevent any medical condition, disease, or addiction. The insights and schedules provided by the App do not constitute medical advice or clinical therapy. Always consult with a qualified healthcare professional regarding severe addictions or health concerns.
Due to the nature of the App (tracking tobacco/smoking habits), our target audience is strictly adults aged 18 and older. We do not knowingly collect personal information from anyone under the age of 18. If we become aware that we have collected data from a minor, we will take steps to delete that information immediately.
On-device data: Remains on your device until you delete it, uninstall the App, or clear the App’s storage.
Crash reports: Retained by Google Firebase according to Google’s policies.
AI proxy quotas: Stored temporarily (typically up to 24 hours) and then expire automatically.
Advertising data: Governed by Google AdMob’s policies; you can reset your Advertising ID in your device settings.
To stop AI data transmission, do not use Premium AI features or do not subscribe to Premium.
If you are located in the European Economic Area (EEA), United Kingdom, or Turkey, you may have additional rights regarding your personal data under applicable laws (such as GDPR or KVKK), including the right to request information about data processing. Because most of your data is stored locally on your device, you can delete it at any time by uninstalling the App or clearing its data. For third-party services (Google, Cloudflare), please refer to their respective privacy policies.
We may update this Privacy Policy from time to time. We will revise the "Last Updated" date at the top. Continued use of the App after changes constitutes acceptance of the updated policy.
If you have any questions, concerns, or requests regarding this Privacy Policy or how your data is handled, please contact us at:
Email: subhuti.tech@gmail.com