Privacy Policy

I. Preface

This application (hereinafter referred to as the "App") respects and protects the security of users' personal information and privacy. This Privacy Policy will clearly explain how the App collects, uses, stores, and shares user data, as well as the data rights and permission management methods available to users. Please carefully read and understand this Policy before using the App. Your continued use of the App constitutes your agreement to all the contents of this Policy.

II. Data Collection

The App only collects the following necessary data to implement core functions and improve service experience, and does not collect any irrelevant personal information:

Device-related information: IP address, WiFi SSID (used for network connection and device identification to ensure the stability of data transmission, and not associated with user identity);
Location information: Device latitude and longitude (temporarily obtained only when the user actively uses the positioning or Bluetooth device binding function, without continuous tracking);
Camera data: QR code images obtained through the camera (for the scan code function), and photos taken (such as alarm clock wallpapers, images required for device binding, stored only locally or on designated devices authorized by the user);
Recording data: Audio actively recorded by the user (for functions such as alarm reminders, stored only locally or on designated devices authorized by the user).

III. Purpose of Data Use

Collected data is only used for the following scenarios directly related to App functions, and not for any unspecified purposes:

Location Information
- Used to transmit latitude and longitude to the server to obtain weather information for the user's region and provide weather-linked services for the alarm clock function;
- Used to scan nearby Bluetooth devices to help users quickly bind authorized alarm clock devices and achieve inter-device communication.
Camera Data
- Temporarily parse device binding information or function instructions when scanning and identifying QR codes;
- Used to set alarm clock wallpapers and record device-related images when taking photos, stored only locally or synchronized to authorized alarm clock devices specified by the user.
Recording Data
- Used for users to customize alarm ringtones, stored only locally or synchronized to authorized alarm clock devices specified by the user.
Device-related Information
- IP address and WiFi SSID are only used for network connection verification to ensure the stability of data (such as photos and recordings) synchronization between user-authorized devices, and not for user identity identification or tracking.

IV. Data Sharing and Third-Party Service Description

1. Scope of Data Sharing

The App only shares user data in the following scenarios, and strictly adheres to the "minimum necessity" principle, and does not disclose user information to any irrelevant third parties:

Photos and recording data actively uploaded by the user are only synchronized to authorized alarm clock devices specified by the user (for inter-device function linkage, such as the alarm clock displaying photos and playing recordings);
Photos and recording data will be temporarily stored in Alibaba Cloud Storage Service (only used for synchronization between user-authorized devices; Alibaba Cloud only provides storage technical support and has no right to use, analyze, or disclose the data);
Except for the above scenarios, the App will not share user data with any third-party analysis or advertising services such as Google Analytics and AdMob.

2. Open-Source Component Description

The App integrates the following open-source components, which are only used to implement basic functions such as page rendering, Bluetooth connection, and network requests. All components are "non-data collection type" and will not collect or transmit any user personal information:

Component Name	Function & Purpose	Open-Source Address
SmartRefreshLayout	Implement pull-to-refresh and pull-to-load-more functions	https://github.com/scwang90/SmartRefreshLayout
PhotoView	Provide image zoom and viewing capabilities	https://github.com/Baseflow/PhotoView
uCrop	Support image cropping (e.g., alarm clock wallpaper cropping)	https://github.com/Yalantis/uCrop/
PictureSelector	Provide image selection function (e.g., select alarm clock wallpaper)	https://github.com/LuckSiege/PictureSelector
CircleImageView	Implement circular image display (e.g., avatars, icons)	https://github.com/hdodenhof/CircleImageView
Mqtt	Provide inter-device message transmission protocol support (e.g., Bluetooth device communication)	https://github.com/hannesdorfmann/paho.mqtt.android/tree/BuildWithJitpackArtifact https://github.com/eclipse-paho/paho.mqtt.android
Android-PickerView	Provide wheel selection control (e.g., time, option selection)	https://github.com/Bigkoo/Android-PickerView
ImmersionBar	Implement immersive status bar to optimize interface display	https://github.com/gyf-dev/ImmersionBar
AndroidAutoSize	Adapt to different screen sizes to ensure interface consistency	https://github.com/JessYanCoding/AndroidAutoSize
MMKV	Local data storage (e.g., alarm clock configuration, user preferences)	https://github.com/Tencent/MMKV
EventBus	Implement in-app event transmission (e.g., page interaction, status update)	https://github.com/greenrobot/EventBus
Timber	Local log printing (only stored locally on the device for development debugging, not uploaded)	https://github.com/JakeWharton/timber
Glide	Image loading and display (e.g., alarm clock wallpaper, local images)	https://github.com/bumptech/glide
OkHttp	Handle network requests (e.g., weather data acquisition, device binding verification)	https://github.com/square/okhttp
Android-BluetoothKit	Implement Bluetooth BLE device connection and communication (e.g., bind alarm clock devices)	https://github.com/dingjikerbo/Android-BluetoothKit
Gson	Parse JSON data (e.g., network responses, local configurations)	https://github.com/google/gson
Glide-Transformations	Image transformation processing (e.g., cropping, filters; local processing only)	https://github.com/wasabeef/glide-transformations

V. Data Retention and User Rights

1. Data Retention Rules

Cloud data: After the user cancels the account, the App will completely delete all user data stored in the cloud (including photos, recordings, and location-related information) within 14 natural days;
Local data:
- Photos and recording data related to the alarm clock are only retained locally on the device and can be viewed by the user on the "Alarm Clock Details Page"; when the user manually deletes the photos, recordings, or deletes the corresponding alarm clock, the data will be deleted immediately;
- Alarm clock wallpaper images are only retained in the local "Photo List" of the device, and the data will be deleted immediately when the user manually deletes them.

2. User Data Rights

Right to access data: You can view locally stored photos and recording data on the "Alarm Clock Details Page" and "Photo List";
Right to delete data: You can manually delete all cloud and local data through the "Settings - Privacy" page, or delete specified data individually on the corresponding function pages (such as alarm clock details, photo list);
Right to export data: If you need to export local photos and recording data, you can operate through the system file management function or the "Data Export" option (if available) in the App.

VI. App Permission Description

The App only applies for permissions necessary to implement core functions, and does not force authorization of non-essential permissions. You can manage permissions at any time in the device's "Settings - App Permissions":

Permission Name	Purpose of Application	Permission Usage Scenarios
Location Permissions (ACCESS_FINE_LOCATION/ACCESS_COARSE_LOCATION)	Obtain device latitude and longitude	1. Obtain latitude and longitude during positioning to get weather information; 2. Location assistance is required when scanning nearby Bluetooth devices to bind alarm clock devices
Camera Permissions (CAMERA)	Take photos and scan QR codes	1. Scan QR codes to bind alarm clock devices; 2. Take photos to set alarm clock wallpapers or record device information
Recording Permissions (RECORD_AUDIO)	Record audio	For users to customize alarm ringtones
Storage Permissions (READ_EXTERNAL_STORAGE/WRITE_EXTERNAL_STORAGE; for Android 13+, READ_MEDIA_IMAGES/READ_MEDIA_AUDIO)	Store/retrieve local images and audio	1. Save captured alarm wallpapers and recorded ringtones; 2. Retrieve local images to set as alarm backgrounds
Bluetooth Permissions (BLUETOOTH/BLUETOOTH_ADMIN/BLUETOOTH_CONNECT, etc.)	Communicate with Bluetooth devices	Establish Bluetooth connections with authorized alarm clock devices to achieve data synchronization (e.g., images, recordings) and function control

VII. Data Security Protection Measures

The App adopts industry-standard security technologies to ensure the security of user data during transmission and storage:

Data transmission security: User data (such as photos, recordings, location information) is encrypted using the TLS 1.3 protocol during network transmission to prevent data from being intercepted or tampered with;
Data storage security: Local data is stored in an encrypted manner, and cloud data (such as Alibaba Cloud Storage) is protected by mechanisms such as access permission control and data encryption, which can only be accessed by users and authorized devices;
Access control security: Data in the App is only visible to the currently logged-in user, and third-party services (such as Alibaba Cloud) only provide technical support and have no data access rights.