This Privacy Policy explains how the LevivaFast application ("the App", "we", "us") collects, uses, stores and protects your information. It applies to the App on both iOS (Apple App Store) and Android (Google Play). Where a practice applies to only one platform, it is marked with a badge: iOS or Android.
By installing or using LevivaFast, you agree to the practices described here.
LevivaFast is developed and maintained by Kodaru System, an independent software developer based in Brazil. Kodaru System is the data controller for the personal data described in this policy. For any privacy question or request, contact cadufelicioandrade@gmail.com.
LevivaFast is designed to work primarily on your device. We do not require you to create an account to use the App.
| Data | When it is collected | Purpose |
|---|---|---|
| Name and email address | Only if you choose to sign in with your Google Account or with Apple | Identify your account and sync your records across your devices |
| Account identifier issued by the sign-in provider | Only if you sign in | Link your records to your account |
iOS If you sign in with Apple and choose to hide your email address, we receive only a private relay address and never see your real one.
| Data | When it is collected | Purpose |
|---|---|---|
| App settings, preferences, language, reminders and notification settings | Normal use of the App | Keep the App configured the way you left it |
| Crash reports and technical performance data | When an error occurs in the App (Firebase Crashlytics) | Identify and fix bugs |
| Usage data and in-app events | Normal use of the App (Firebase Analytics) | Understand which features are used most and improve the App |
| Advertising identifier and ad interaction data | Only in the free version, when ads are displayed (Google AdMob) | Serve and measure the performance of ads |
| Subscription status and purchase history | When you subscribe to LevivaFast Premium | Unlock and validate premium features while the subscription is active |
LevivaFast lets you record health and wellness information about yourself. You enter this data manually and it is entirely optional — the App works without any of it. Depending on the features you use, this may include:
We treat all of the above as sensitive data. Specifically:
LevivaFast is not a medical device and does not provide medical advice, diagnosis or treatment. Any values, ranges or alerts shown in the App are for personal tracking and informational purposes only. Always consult a qualified healthcare professional before making decisions about your health or beginning a fasting program.
Your records (fasting sessions, measurements, health entries, reminders and settings) are stored locally on your device in an app-private database. If you choose to sign in, the same data is also synced over an encrypted connection to Google Firebase (Firestore and Authentication), so that you can restore it on another device or after reinstalling. Your cloud records are scoped to your account and are not readable by other users.
Where the GDPR, the Brazilian LGPD or a similar law applies, our legal bases are:
We do not sell your personal data. We use the following third-party services, each subject to its own privacy policy:
Payments are handled entirely by Apple or Google. We never receive or store your payment card details.
The free version of LevivaFast displays ads provided by Google AdMob. Users with an active LevivaFast Premium subscription do not see ads.
iOS Before any tracking for personalized advertising takes place, the App asks for your permission through Apple's App Tracking Transparency prompt. If you decline, you will still see ads, but they will not be personalized using your advertising identifier. You can change this decision at any time in the iOS Settings app, under Privacy & Security > Tracking.
Android Ads may use your advertising ID for personalization, subject to your Android privacy settings, including the Privacy Sandbox / Topics API where available. You can reset your advertising ID or opt out of ad personalization in your Android device settings, under Privacy > Ads.
We do not share your health, fasting, body or symptom data with any advertising network.
LevivaFast Premium is offered as an auto-renewable subscription. Your subscription status is linked to your store account and is used only to unlock premium features.
iOS Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. You can manage or cancel it in your Apple Account settings.
Android Payment is charged to your Google Play account. You can manage or cancel your subscription in the Google Play Store, under Payments & subscriptions.
At any time, you may:
Depending on where you live, you may also have the right to object to processing, to request data portability, or to lodge a complaint with your local data protection authority. To exercise any of these rights, write to cadufelicioandrade@gmail.com. We respond within 30 days.
If you created an account by signing in, you can delete your account and all associated cloud data directly inside the App, in Settings > Account > Delete account. This is permanent and removes your records from our cloud storage. Deleting the App from your device removes the local copy.
You can also request deletion by writing to cadufelicioandrade@gmail.com from the email address associated with your account. We complete deletion requests within 30 days.
Your records are kept for as long as your account exists, so that your history stays available to you. When you delete your account, your cloud records are deleted. Crash reports and aggregate analytics are retained by Firebase according to Google's default retention windows and are not linked to your health data.
Data in transit is protected with TLS encryption. Cloud data is stored on Google Firebase infrastructure and access is restricted by security rules so that records can be read and written only by the account they belong to. Local data is stored in the App's private storage area, which other apps on your device cannot read. No method of transmission or storage is completely secure, and we cannot guarantee absolute security.
LevivaFast is not directed at children under 13 years of age, and we do not knowingly collect personal data from children. If you believe a child has provided us with personal data, contact us and we will delete it. Intermittent fasting is not appropriate for children, and the App is intended for adults.
Kodaru System operates from Brazil, and Google Firebase stores data on servers that may be located in other countries, including the United States. By using cloud sync, you understand that your data may be transferred and processed outside your country of residence, under safeguards provided by Google's data processing terms.
We may update this Privacy Policy from time to time. Material changes will be reflected in the "last updated" date at the top of this page, and, where required, announced inside the App.
Questions, requests or complaints about this policy can be sent to cadufelicioandrade@gmail.com.