Drift Privacy Policy | drift.cartolinks.com

The short version: Drift stores all your data — saved scenes, timer preferences, settings — only on your phone. We have no server. We collect no personal information. We cannot see your data. When you delete the app, everything is gone.

Health & Fitness category disclosure: Drift is listed in the Health & Fitness category. It accesses sleep timer duration, alarm time, and sound preferences solely to operate the app on your device. This data is never collected, transmitted, or shared. Drift does not access Google Health Connect, Google Fit, or Apple HealthKit.

1. Who we are

Drift is developed by Cartolinks, contact: cartolinks.com/support.

2. Data we collect

We collect no personal data.

Drift does not collect, transmit, or store on any server:

Your name, email address, or any contact information
Your location or IP address
Device identifiers (IDFA, IDFV, Android Advertising ID)
Listening history or sound preferences
Usage analytics, events, or screen recordings
Crash reports or error logs

3. Data stored on your device

Drift stores the following data in local storage on your phone, accessible only to the Drift app:

Data type	Purpose	Stored on
Saved scenes (sound combinations and volumes)	Quick resume of favourite mixes	Your device only
Timer preferences (last used duration)	Convenience — remembers your last timer	Your device only
Alarm settings	Wake-up alarm time and days	Your device only
App settings (theme, volume defaults)	Personalisation	Your device only

This data is never transmitted. It never leaves your device.

4. Health and Fitness Data Disclosure

Drift is listed in the Health & Fitness category on Google Play and the App Store. Google Play's Data Safety policy and Apple's App Store privacy requirements require apps in this category to comprehensively disclose what health and fitness data is accessed, collected, and how it is used. This section provides that disclosure in full.

4a. Sleep-related data accessed by this app

Drift accesses the following sleep-related data on your device solely to operate the app's features. This data is processed entirely on-device. It is not collected, not transmitted off your device, and not shared with any third party — including Cartolinks.

Data accessed	Purpose of access	Collected / transmitted / shared?
Sleep timer duration (e.g. 45 minutes)	To fade audio out after the set time and remember the value for the next session	No. Stored on-device only. Never leaves the device.
Alarm time and repeat days	To schedule a local wake-up notification on the device	No. Stored on-device only. Never leaves the device.
Saved sound scenes (mix selections and volumes)	To allow users to save and reload favourite sound combinations	No. Stored on-device only. Never leaves the device.

4b. Health data types not accessed by this app

Drift does not access, read, collect, or transmit any of the following health or fitness data types:

Health info — heart rate, blood pressure, blood glucose, body temperature, menstrual cycle data, or any clinical health measurements
Sleep health data — sleep duration as a health metric, sleep quality scores, sleep stages, or wake-time measurements
Fitness info — steps, distance, calories, workouts, exercise sessions, or any physical activity data
Body measurements — weight, height, BMI, or body fat percentage
Medical records — clinical records, diagnoses, prescriptions, or any medical information

Drift does not declare, request, or use the android.permission.health.* Android health permissions. Drift does not read from or write to Google Health Connect, Google Fit, Apple HealthKit, or any other health platform.

5. Sound files

All 20 sound files are bundled with the app at download. Drift does not stream audio from any server. No network requests are made to play sounds.

6. iCloud and Google backup

By default, Drift excludes its stored data from iCloud Backup (iOS) and Android Auto Backup. Your scenes and settings are not included in your device backup unless you manually change this in your phone's settings.

If you manually include Drift in your backup, your encrypted backup may contain Drift data. This backup is between you and Apple or Google — Drift has no access to it.

7. Notifications

Drift uses local notifications for the alarm feature. These notifications are:

Generated entirely on your device
Not routed through any push notification server (APNS or FCM are not used for content)
Not sent to, logged by, or visible to us

8. Third-party services

Drift contains zero third-party SDKs. There are no integrations with:

Analytics platforms (no Firebase Analytics, Amplitude, Mixpanel, etc.)
Crash reporting services (no Sentry, Crashlytics, Bugsnag, etc.)
Advertising networks
Social login or identity providers
Any external API or CDN for audio

The only network calls the app may make are to fetch the App Store receipt for purchase validation — a standard Apple/Google process that does not involve your personal data.

9. Children's privacy

Drift is not designed for or marketed to children under 13 (under 16 in the EU/UK). We do not knowingly collect information from children. Since we collect no data from any users, this is moot — but we state it for completeness.

10. GDPR and UK GDPR

Drift does not process any personal data within the meaning of GDPR or UK GDPR, because no personal data is collected or stored on our systems.

If you are a UK or EU resident and believe we have processed your personal data, please contact us. We are required to respond within 30 days.

11. California (CCPA)

We do not sell personal information. We do not share personal information with third parties for cross-contextual behavioural advertising. We collect no personal information. CCPA rights therefore do not apply in a meaningful way — we have no data to provide, correct, or delete on your behalf.

12. Exercising your data rights

Since your data is stored only on your device, you exercise your rights directly:

Access: Open Drift and view your saved scenes and settings in the app.
Deletion: Delete individual scenes in the app, or delete the app entirely to remove everything.

We have no server-side copy of your data to act upon.

13. Changes to this policy

We may update this policy when the app is updated. The “last updated” date at the top of this page will change. Significant changes will be noted in the app's release notes. Continued use of the app constitutes acceptance.

14. Contact

Cartolinks
cartolinks.com/support

This policy is hosted at https://drift.cartolinks.com/privacy and is submitted as the privacy policy URL for the Drift app on the App Store and Google Play.

Drift – Sleep Sounds & Timer

Privacy Policy