Documentation

Privacy Policy

Introduction Neolingua ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our Chinese language learning mobile application.

Information We Collect

Personal Information

Account Information: Email address and display name when you create an account
Profile Data: Learning preferences, HSK level, and progress tracking data
Usage Analytics: App usage patterns, lesson completion rates, and learning statistics

Audio Data

Voice Recordings: Temporary audio recordings for speech-to-text functionality during language practice sessions
Important: Audio recordings are processed immediately and not permanently stored on our servers

Technical Information

Device Information: Device type, operating system version, and app version
Firebase Analytics: Usage patterns and crash reports to improve app performance

How We Use Your Information

Core App Functionality

Provide personalized Chinese language learning experiences
Track your learning progress and maintain streak counters
Generate AI-powered tutoring sessions adapted to your level
Process speech-to-text for pronunciation practice

Service Improvement

Analyze usage patterns to improve app features
Fix bugs and enhance app performance
Develop new learning content and features

Data Storage and Security

Firebase Integration

User data is securely stored using Google Firebase services
All data transmission is encrypted using industry-standard protocols
We implement appropriate security measures to protect against unauthorized access

Third-Party Services

OpenAI API: We use OpenAI's services for AI tutoring and speech recognition
Audio processing is temporary and not stored permanently
We use a secure backend proxy to protect API credentials

Data Sharing We do not sell, trade, or rent your personal information. Limited data sharing occurs only in these situations:

Service Providers

Firebase (Google) for data storage and analytics
OpenAI for AI tutoring services (processed data only, not stored)

Legal Requirements

When required by law or to protect our legal rights
To prevent fraud or security threats

Your Rights

Data Control

Access: Request copies of your personal data
Correction: Update incorrect information in your profile
Deletion: Request deletion of your account and associated data
Portability: Export your learning progress data

Children's Privacy Neolingua is suitable for users of all ages. We do not knowingly collect personal information from children under 13 without parental consent. If you believe we have collected information from a child under 13, please contact us immediately.

Data Retention

Account Data: Retained while your account is active
Learning Progress: Maintained to provide continuous learning experience
Audio Recordings: Processed immediately and not permanently stored
Deleted Accounts: Data is permanently deleted within 30 days

International Users Our services are hosted in the United States. By using Neolingua, you consent to the transfer of your information to the United States, which may have different privacy laws than your country.

Changes to This Policy We may update this Privacy Policy periodically. We will notify users of significant changes through:

In-app notifications
Email notifications (if applicable)
Updated "Last Modified" date Continued use of the app after changes constitutes acceptance of the updated policy.

AI and Machine Learning

OpenAI Integration

We use OpenAI's AI models to provide personalized tutoring
Conversation data is processed to generate responses but not stored permanently
We implement token usage limits to manage costs and usage

Data Processing

Learning conversations are analyzed to improve teaching effectiveness
Personal identifiers are not shared with AI services
All AI interactions are conducted through our secure backend

Cookie Policy Neolingua does not use cookies in the traditional web sense, but we do use:

Local storage for app preferences and offline functionality
Firebase analytics for app improvement
Temporary session data for AI interactions

Contact Information App Developer: Neolingua Email: contact@neolingua.xyz

For privacy-related questions or to exercise your rights, please contact us at the email above.

Compliance This privacy policy is designed to comply with:

Apple App Store Review Guidelines
California Consumer Privacy Act (CCPA)
General Data Protection Regulation (GDPR) where applicable
Children's Online Privacy Protection Act (COPPA)

Note: This privacy policy applies only to the Neolingua mobile application and does not cover third-party websites or services that may be linked within the app.

Terms of Service

Effective Date: June 19, 2025 Last Updated: June 19, 2025

Agreement to Terms

By downloading, installing, or using the Neolingua mobile application ("App"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, do not use the App.

Description of Service

Neolingua is a Chinese language learning application that provides:

AI-powered tutoring sessions
Vocabulary and concept learning modules
Speech-to-text practice features
Progress tracking and streak counters
Personalized learning experiences

User Accounts

Account Creation

You must provide accurate and complete information when creating an account
You are responsible for maintaining the confidentiality of your account credentials
You must be at least 13 years old to create an account (with parental consent if under 18)

Account Responsibilities

You are responsible for all activities that occur under your account
Notify us immediately of any unauthorized use of your account
We reserve the right to suspend or terminate accounts that violate these Terms

Acceptable Use

Permitted Uses

Use the App for personal language learning purposes
Share your learning progress with friends and family
Provide feedback to help improve the App

Prohibited Uses

Use the App for any illegal or unauthorized purpose
Attempt to reverse engineer, modify, or hack the App
Upload malicious content or attempt to disrupt the service
Share your account credentials with others
Use the App to harass, abuse, or harm others

Content and Intellectual Property

Our Content

All App content, including lessons, exercises, and AI responses, is owned by Neolingua
You may not reproduce, distribute, or create derivative works without permission
The Neolingua name, logo, and branding are our trademarks

User Content

You retain ownership of any content you create or upload
By using the App, you grant us a license to use your content for service improvement
You represent that your content does not infringe on third-party rights

AI Services and Limitations

AI-Powered Features

Our AI tutoring uses OpenAI's AI models to provide personalized instruction
AI responses are generated automatically and may not always be perfect
We strive for accuracy but cannot guarantee the correctness of all AI-generated content

Service Limitations

Daily token limits apply to manage costs and ensure fair usage
We may implement usage restrictions during high-demand periods
AI services depend on third-party providers and may experience interruptions

Privacy and Data

Data Collection

We collect and use your information as described in our Privacy Policy
You consent to our data practices by using the App
Audio recordings are processed temporarily and not permanently stored

Data Security

We implement reasonable security measures to protect your data
However, no method of transmission over the internet is 100% secure
You use the App at your own risk regarding data security

Subscription and Payments

Free Features

Basic learning features are available at no cost
Free tier includes limited daily AI interactions

Premium Features

Increased usage
Potential additional features
Premium feature availability and pricing subject to change

Payment Terms

All payments are processed through Apple's App Store
Subscriptions automatically renew unless cancelled
Refunds are subject to Apple's refund policy

Service Availability

Uptime

We strive to maintain high service availability
Scheduled maintenance will be announced when possible
We are not liable for service interruptions beyond our control

Updates

We may update the App to add features, fix bugs, or improve security
Some updates may be required to continue using the App
Continued use constitutes acceptance of updated Terms

Limitation of Liability

Educational Purpose

Neolingua is designed for educational purposes only
We do not guarantee specific learning outcomes or fluency levels
Language learning results depend on individual effort and practice

Disclaimer

The App is provided "as is" without warranties of any kind
We disclaim all warranties, express or implied, including merchantability and fitness for purpose
We are not liable for any indirect, incidental, or consequential damages

Limitation

Our total liability to you shall not exceed the amount you paid for the App (if any)
This limitation applies regardless of the legal theory of liability

Indemnification

You agree to indemnify and hold harmless Neolingua, its developers, and affiliates from any claims, damages, or expenses arising from:

Your use of the App
Your violation of these Terms
Your infringement of third-party rights

Termination

By You

You may stop using the App at any time
You may request deletion of your account through the App settings

By Us

We may suspend or terminate your access for Terms violations
We may discontinue the App with reasonable notice
Upon termination, your right to use the App immediately ceases

Governing Law

These Terms are governed by the laws of Pennslyvania without regard to conflict of law principles. Any disputes shall be resolved in the courts of Pennslyvania.

Changes to Terms

We may modify these Terms at any time. We will notify users of material changes through:

In-app notifications
Email notifications (if applicable)
Updated "Last Modified" date

Continued use after changes constitutes acceptance of the modified Terms.

Contact Information

For questions about these Terms, please contact us at:

Email: contact@neolingua.xyzApp Developer: Neolingua

Severability

If any provision of these Terms is found to be unenforceable, the remaining provisions will continue in full force and effect.

Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and Neolingua regarding the use of the App.

Apple App Store Compliance: These Terms comply with Apple's App Store Review Guidelines and Terms of Service requirements.

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