Welcome to Yomeru!, the application designed for learning to read and comprehend the Japanese language through story-based learning. By accessing and using this application, you are deemed to have read, understood, and agreed to all the terms, conditions, and service policies listed below.

1. General Terms of Use

• 1.1. Application Purpose: Yomeru! is specifically intended for users who wish to learn Japanese independently, focusing on reading skills and vocabulary acquisition.
• 1.2. Lawful Use: The application must only be used for personal learning and non-commercial purposes. Usage for illegal activities, violating the law, or abusing the system is strictly prohibited.
• 1.3. User Responsibility: You are fully responsible for all activities conducted under your account and any content you may generate or upload (if contribution features are introduced in the future).

2. Data Storage and Management

• 2.1. Data Collection: We collect data necessary to support application functions and personalize your learning experience. Data collected includes, but is not limited to: name, email, User ID (for Firebase Authentication), and specific application activity data such as:
  • Reading Progress
  • Favorite Lists
  • Learned Vocabulary
  • Search History
  • Experience Points (EXP) and Rank Data
  • Last Access Time
  • User Preferences
  • Profile Information (e.g., Name and Profile Picture from Social Login Providers)
  • Other technical and functional data required for the application to operate correctly
• 2.2. Data Security: We are committed to maintaining the confidentiality and security of user data. Data is protected with SSL (Secure Sockets Layers) encryption protocol during transmission.
• 2.3. Data Infrastructure: The application utilizes NeonDB for data storage and Firebase Authentication for user login management.
• 2.4. Third Parties: User data may be shared with trusted third-party service providers for the following purposes:
  • Application Functionality: Ensuring features like authentication (Firebase Auth), social login (Google Sign-In), and database services (NeonDB) operate correctly.
  • AI Service Providers: Utilizing services such as Google Gemini, OpenAI, and OpenRouter to generate educational content.
  • Subscription Management: Processing subscription entitlements via RevenueCat.
  • Email Services: Using specialized services (e.g., Resend) to deliver important account notifications and newsletters.
  • Push Notifications: Utilizing services such as Expo (which may use FCM or APNs) to deliver push notifications.
  • Analytics: Analyzing usage patterns to improve the UI/UX and learning effectiveness.
  • Advertising: Displaying relevant advertisements via Google Mobile Ads (AdMob). Ad requests are configured to use non-personalized ads with contextual targeting.
  • Security: Detecting and preventing unauthorized access. These third parties are required to comply with relevant privacy policies and maintain data confidentiality.
• 2.5. Email Communication: By registering an account, you consent to receive communications from us (sent via [email protected]).
  • Marketing and Non-Essential Emails: You will be automatically subscribed to newsletters, monthly login reminders, season reset notifications, and other promotional emails. You may opt-out of these communications at any time through your User Settings.
  • Essential Communications: You strictly cannot opt-out of emails regarding account security, transactional confirmations, legal notices, major policy updates, and other critical service announcements as they are essential for the proper functioning of your account.

3. Content and AI Sources

• 3.1. AI-Generated Content: Parts of the content within the application, including Sentence Explanations, Story Summaries, and Learning Quizzes, are automatically generated by an artificial intelligence system.
• 3.2. Content Guarantee Limitation: We strive to ensure that AI-generated content (including quiz questions and answers) is accurate and relevant. However, we do not provide any guarantee of the absolute truth, accuracy, or completeness of such content. Users are advised to always verify information, especially for academic or professional purposes.
• 3.3. Public Data Sources: Certain educational content, including Kanji lists and details, is derived from public domain sources such as the Jōyō Kanji and Kyōiku Kanji lists (Wikipedia). We do not claim ownership of these standardized lists.
• 3.4. Languages: The application interface is available in English and Indonesian. Japanese text is used extensively throughout the application for learning purposes.

4. Monetization and In-App Advertising

• 4.1. Revenue Model: Yomeru! uses advertising as the primary revenue model to keep the service free. By using the application, you agree to the following ad placements:
• 4.2. Ad Provider: We use Google Mobile Ads (AdMob) to display advertisements.
• 4.3. Interstitial Ads (Full-Screen Pop-Up): Full-screen ads may appear with varying probabilities when the user:
  • Opens the Story Detail Screen or Vocabulary Detail Screen
  • Completes reading a story or marks a story as completed
  • Toggles favorite status on stories or vocabulary items
  • Plays audio for story narration
  • Navigates between vocabulary review items
  • Or performs other actions within the application