Under Trees - プライベート日記 - プライバシーポリシー
最終更新日: September 22, 2026
このプライバシーポリシーは、Under Trees - プライベート日記, パッケージ名 net.langhoangal.undertrees（「本アプリ」）が本アプリの利用時に情報をどのように取り扱うかを説明します。
本アプリは Lang Hoang によりGoogle Play と App Store で世界中に提供されます。{developerName} は インディーアプリ開発者 拠点 Vietnamにあるです（「私」「私の」）。
このポリシーでは、どの種類のデータが収集される可能性があるか、そのデータがどのように使用されるか、そしてデバイス外での処理がどのように保護されるかを説明します。
1. アカウントアクセス
アカウント作成は任意であり、明示的にサインインが必要な機能にのみ適用されます。
認証プロバイダー: 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. 子どものプライバシー
本アプリは13歳未満の子どもを対象としていません。 本アプリの推奨最低利用年齢は 16 歳です。 Google Play では、子ども向けアプリでも Families アプリでもないと申告されています。 保護者の方で、お子さまが私に直接個人情報を提供したと考えられる場合は、適切に対応できるようご連絡ください。
3. 端末上のローカルデータ
このアプリは一部の情報を端末上にローカル保存します。
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. 端末外で収集・処理される可能性があるデータの種類
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.
詳細
- カテゴリ: Personal info
- 種類: User IDs, Email address, Name
- 収集: はい
- 共有: いいえ
- 必須: いいえ
- 目的: App functionality, Account management
- 処理主体:
- 注記:
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.
詳細
- カテゴリ: App activity, Photos and videos
- 種類: Other user-generated content, Photos
- 収集: はい
- 共有: いいえ
- 必須: いいえ
- 目的: App functionality
- 処理主体:
- 注記:
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.
詳細
- カテゴリ: Financial info
- 種類: Purchase history
- 収集: はい
- 共有: いいえ
- 必須: いいえ
- 目的: App functionality
- 処理主体: ,
- 注記:
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.
詳細
- カテゴリ: Personal info
- 種類: User IDs
- 収集: はい
- 共有: いいえ
- 必須: いいえ
- 目的: App functionality, Analytics
- 処理主体:
- 注記:
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.
詳細
- カテゴリ: Device or other IDs
- 種類: Device or other IDs
- 収集: はい
- 共有: はい
- 必須: いいえ
- 目的: Analytics, App functionality, Advertising or marketing, Fraud prevention, security, and compliance
- 処理主体: , ,
- 注記:
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.
詳細
- カテゴリ: App activity
- 種類: App interactions
- 収集: はい
- 共有: はい
- 必須: いいえ
- 目的: Analytics, Advertising or marketing, Fraud prevention, security, and compliance
- 処理主体: ,
- 注記:
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.
詳細
- カテゴリ: App info and performance
- 種類: Crash logs
- 収集: はい
- 共有: いいえ
- 必須: いいえ
- 目的: Analytics
- 処理主体:
- 注記:
Used to diagnose crashes and improve app stability.
Diagnostics data
Technical diagnostics may be processed by platform services to monitor app quality.
詳細
- カテゴリ: App info and performance
- 種類: Diagnostics
- 収集: はい
- 共有: いいえ
- 必須: いいえ
- 目的: Analytics
- 処理主体:
- 注記:
Technical diagnostics may be processed by .
6. サービスプロバイダー
7. セキュリティ
私が直接取り扱う情報に対して、適切で合理的な管理上および技術上の対策を講じています。
このポリシーに記載されたサービスへ送信される情報は、対応している場合、それぞれの SDK と暗号化されたネットワーク接続を通じて送信されます。
電子的な送信または保存の方法に完全な安全性はなく、絶対的なセキュリティは保証できません。
8. データ保持
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.
ローカルデータ: Delete individual entries and related media in the app, or remove all local app data by clearing storage or uninstalling.
サーバーデータ: 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.
第三者データ: , , Firebase services, , , the , and retain data according to their own privacy and retention policies.
9. データ削除
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. 連絡先
プライバシーに関するお問い合わせ先:
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.