Under Trees - 私密日记 - 隐私政策
最后更新： September 22, 2026
本隐私政策说明 Under Trees - 私密日记, 软件包名称 net.langhoangal.undertrees（以下简称“本应用”）在您使用本应用时如何处理信息。
本应用由 Lang Hoang 在 Google Play 和 App Store 面向全球提供提供，{developerName} 是一名独立应用开发者，所在地为Vietnam（“我”或“我的”）。
本政策说明可能会收集哪些类型的数据、这些数据如何使用，以及设备外处理如何受到保护。
1. 账户访问
创建账户是可选的，仅适用于明确要求登录的功能。
身份验证提供商：Google。
The local journal does not require a user-facing account on Android or iPhone. Google sign-in is optional and used only when you choose backup and restore. The Android release may create an anonymous Firebase session for supporting services.
2. 儿童隐私
本应用不针对 13 岁以下儿童。 使用本应用的建议最低年龄为 16 岁。 在 Google Play 上，本应用未被声明为面向儿童的应用或 Families 应用。 如果您是家长或监护人，并认为儿童曾直接向我提供个人信息，请联系我，以便我采取适当措施。
3. 设备本地数据
本应用会在您的设备上本地存储部分信息。
Core journal content, attached media, tags, affirmations, themes, security settings, reminders, and preferences are stored on your device. Local journal and media storage is not encrypted by the app passcode.
- Journal entries and organization:
Entry titles and text, dates, moods, formatting, tags, affirmations, and related journal records are stored in the app's local database.
- Photos and drawings:
Media attached to entries is copied into the app's private local media folder.
- Security settings and preferences:
Security settings and preferences are stored in platform-protected app storage. Android protects encrypted preferences with Android Keystore; iPhone applies iOS complete file protection to private journal data. The app passcode controls access through the app interface and does not independently encrypt journal files or exported backups.
4. 可能在您的设备外收集和处理的数据类型
Optional Google account information
Your Google account identifier, name, and email address may be processed to authorize access to the app-specific Google Drive backup area.
详细信息
- 类别: Personal info
- 类型: User IDs, Email address, Name
- 已收集: 是
- 已共享: 否
- 必需: 否
- 用途: App functionality, Account management
- 处理方:
- 备注:
Processed only when you choose Google sign-in for backup and restore.
Optional Google Drive backup
A backup can contain journal entries, dates, moods, formatting, tags, affirmations, and related journal data. It is uploaded only when you start a Drive backup. Attached photos and drawings may be included with a user-initiated Google Drive backup.
详细信息
- 类别: App activity, Photos and videos
- 类型: Other user-generated content, Photos
- 已收集: 是
- 已共享: 否
- 必需: 否
- 用途: App functionality
- 处理方:
- 备注:
Journal database content is uploaded only when you explicitly create a backup.
Photos and drawings attached to journal entries are uploaded only when you explicitly create a backup.
Purchase and subscription data
Purchase and subscription records may be processed to validate Premium access and restore purchases.
详细信息
- 类别: Financial info
- 类型: Purchase history
- 已收集: 是
- 已共享: 否
- 必需: 否
- 用途: App functionality
- 处理方: ,
- 备注:
Used to validate Premium access and restore purchases.
Anonymous app identifier
An anonymous Firebase identifier may be processed for supporting app services without creating a user-facing account.
详细信息
- 类别: Personal info
- 类型: User IDs
- 已收集: 是
- 已共享: 否
- 必需: 否
- 用途: App functionality, Analytics
- 处理方:
- 备注:
The release app may create an anonymous Firebase session. It does not require you to provide a name, email address, or password.
Device and app identifiers
Technical identifiers may be processed for analytics, remote configuration, and related app operations. Technical identifiers may be processed for advertising, fraud prevention, and measurement when ads are shown.
详细信息
- 类别: Device or other IDs
- 类型: Device or other IDs
- 已收集: 是
- 已共享: 是
- 必需: 否
- 用途: Analytics, App functionality, Advertising or marketing, Fraud prevention, security, and compliance
- 处理方: , ,
- 备注:
Used for analytics, remote configuration, and related app operations.
Used for ad delivery, measurement, and fraud prevention where ads are available.
App usage and interactions
Basic feature interactions may be processed to understand usage and improve the app; the app's named analytics events do not include your journal text. Interactions with ads may be processed for delivery, measurement, and fraud prevention.
详细信息
- 类别: App activity
- 类型: App interactions
- 已收集: 是
- 已共享: 是
- 必需: 否
- 用途: Analytics, Advertising or marketing, Fraud prevention, security, and compliance
- 处理方: ,
- 备注:
Feature events such as adding or reading an entry, searching, selecting a theme, and managing tags or affirmations may be measured. Journal text is not sent in these named events.
Ad-related interaction telemetry may be collected by the advertising SDK.
Crash data
Crash reports may be processed to diagnose problems and improve app stability.
详细信息
- 类别: App info and performance
- 类型: Crash logs
- 已收集: 是
- 已共享: 否
- 必需: 否
- 用途: Analytics
- 处理方:
- 备注:
Used to diagnose crashes and improve app stability.
Diagnostics data
Technical diagnostics may be processed by platform services to monitor app quality.
详细信息
- 类别: App info and performance
- 类型: Diagnostics
- 已收集: 是
- 已共享: 否
- 必需: 否
- 用途: Analytics
- 处理方:
- 备注:
Technical diagnostics may be processed by .
6. 服务提供商
7. 安全
我会针对由我直接处理的信息采取合理且适当的管理和技术措施。
传输到本政策所述服务的信息会在支持的情况下通过其 SDK 和加密网络连接发送。
任何电子传输或存储方式都无法做到绝对安全，因此无法保证绝对安全性。
8. 数据保留
Local journal data remains on your device until you delete it, clear app storage, or uninstall the app. User-created backups remain in the app-specific Drive area until you remove them or your Google account policy removes them. Provider-processed purchase, advertising, analytics, authentication, and diagnostics data follows each provider's policy.
本地数据: Delete individual entries and related media in the app, or remove all local app data by clearing storage or uninstalling.
服务器数据: backups remain under your Google account in the app-specific data area until deleted. The app may retain an anonymous Firebase identifier through according to Firebase policy.
第三方数据: , , Firebase services, , , the , and retain data according to their own privacy and retention policies.
9. 数据删除
Delete individual entries and backups from the relevant screens in the app. To remove all local journal data, clear the app's storage in Android settings where available or uninstall the app on Android or iPhone. backups are associated with the Google account you chose and can be removed from the backup screen where available; Google, Apple, and other providers may retain provider-processed data under their own policies. Email support if you need help identifying the applicable deletion path.
10. 联系
如有隐私问题，请联系：
Journal storage and app lock
Under Trees stores the journal database and attached media in the app's private local storage. The passcode and supported biometrics restrict access through the app interface; they do not independently encrypt the journal database, media files, local backups, or backups. Android protects encrypted preferences with Android Keystore. On iPhone, Under Trees applies iOS complete file protection to its private journal and theme files while they remain inside the app container.
Optional Google Drive backup
access is optional on Android and iPhone. When you sign in and create a backup, the app uploads a copy of the journal database and referenced media to 's app-specific data area. These backups are protected by your Google account and transport encryption, but they are not end-to-end encrypted by Under Trees. Both platforms also support local file backup and restore through the device's file picker or share flow.
Advertising, analytics, and purchases
The free Android and iPhone versions may use for ads, and Remote Config for app usage and configuration, and with the applicable platform store for Premium purchases. On iPhone, tracking or personalized advertising is requested only after the applicable consent and App Tracking Transparency choices. Premium removes in-app ads.