DEFINITIONS

For the purposes of these Terms, the following definitions apply:

• "Lingro," "we," "us," or "our" means Lingro LLC, a New York corporation, and its affiliates, successors, and assigns.
• "Services" means all software, platforms, applications, content libraries, AI features, and related offerings made available by Lingro, whether accessed via browser, mobile application, API, or otherwise.
• "Institution" means a school, school district, college, university, or other educational organization that has entered into a separate agreement or subscription with Lingro on behalf of its instructors and students.
• "Instructor" means a teacher, professor, tutor, or other educational professional who uses the Services to assign, manage, or monitor student activity.
• "Student" means an individual who uses the Services for language learning purposes under the supervision of an Instructor or Institution.
• "User" means any individual who accesses or uses the Services, including Institutions, Instructors, and Students.
• "Student Data" means any information directly related to an identifiable student that is submitted to, collected by, or generated through the Services, including educational records as defined under FERPA.
• "AI Conversation Features" means the interactive, AI-powered language practice tools within the Services, including text-based and voice-based conversation bots built on third-party AI models.
• "Account" means a registered user profile through which a User accesses the Services.
• "Institutional Agreement" means any separately executed order form, data processing agreement, or contract between Lingro and an Institution.

1. AI-POWERED CONVERSATION FEATURES

This section governs your use of Lingro's AI-powered language practice tools, including text and voice conversation bots ("AI Conversation Features"). Please read it carefully.

1.1 Technology and Third-Party Providers

The AI Conversation Features are built using:

• Anthropic's Claude large language model, which powers the text understanding and response generation capabilities of the conversation bots; and
• ElevenLabs voice synthesis technology, which powers the audio output of voice-based conversation bots (see also Section 10).

Your use of the AI Conversation Features is subject not only to these Terms but also to the acceptable use policies of Anthropic and ElevenLabs. By using these features, you agree not to engage in any conduct that would violate those policies.

1.2 Purpose and Limitations of AI Features

The AI Conversation Features are designed exclusively for language learning practice in educational contexts. They are intended to simulate realistic conversational scenarios, provide corrective feedback, and support vocabulary and grammar acquisition.

The AI Conversation Features:

• Are not designed to provide medical, legal, psychological, or other professional advice;
• May occasionally produce inaccurate, incomplete, or contextually inappropriate responses due to inherent limitations of large language models;
• Do not have memory of prior conversation sessions unless that capability has been explicitly enabled and disclosed;
• Are not a substitute for human instruction or professional guidance.

Lingro continuously works to configure and fine-tune AI prompts and guardrails to ensure age-appropriate, educationally appropriate outputs. However, no AI system is perfect, and Instructors are encouraged to monitor student use and report unexpected outputs to hello@lingrolearning.com.

1.3 Logging and Storage of Conversations

AI conversation sessions — including both text inputs and voice interactions — are logged and stored by Lingro. This storage serves the following purposes:

• Enabling Instructors and Institutions to review student progress and engagement;
• Safety monitoring and detection of policy violations;
• Quality assurance and debugging of the AI Conversation Features;
• Improvement of the Services as described in Section 1.4.

Institutions may request access to, or deletion of, conversation logs in the same manner as other Student Data.

1.4 Use of Conversation Data to Improve the Services

Lingro may use data derived from AI conversation sessions to improve the quality, safety, and educational effectiveness of the Services. Any such use is subject to the following restrictions:

• Data is anonymized and aggregated before use for improvement purposes. No improvement use is based on data that can be attributed to an identifiable student;
• Lingro does not sell, license, or otherwise transfer conversation data to third parties for any commercial purpose.

1.5 Student Conduct in AI Conversations

Students agree not to:

• Attempt to manipulate, "jailbreak," or circumvent the AI's content safeguards;
• Input personal information about themselves or others beyond what is necessary for the language learning task at hand;
• Use the AI Conversation Features to generate content that is harmful, harassing, sexually explicit, or unrelated to language learning;
• Record or share AI conversation sessions outside the platform without prior consent from their Institution.

Violations may result in suspension of access to AI Conversation Features, and in serious cases, suspension or termination of the student's account.

1.6 No Student Reliance on AI Accuracy

Language learning AI can make grammatical errors, produce culturally inappropriate phrasing, or reflect biases present in underlying training data. Students should approach AI-generated feedback critically and consult their Instructor with questions about correctness or appropriateness.

2. VOICE FEATURES AND ELEVENLABS

2.1 Voice Synthesis

Certain AI Conversation Features include synthesized voice output generated by ElevenLabs technology. These voices are algorithmically generated and do not represent any real person. No voice biometric data belonging to any User is collected for voice synthesis purposes.

2.2 Student Voice Input

Where voice input is enabled, Students' spoken audio is transmitted to Lingro's servers and processed for the purposes described in Section 1.3. Audio data is treated as Student Data and is subject to the same protections.

Audio recordings of students are subject to applicable state laws governing biometric or audio data (including, where applicable, the Illinois Biometric Information Privacy Act and equivalent laws). Institutions operating in jurisdictions with such laws are responsible for ensuring that appropriate consents have been obtained prior to enabling voice features for their students.

2.3 Opting Out of Voice Features

Students can opt out of voice features at any time and request a text-only version. Students who have concerns about voice data collection should raise them with their Instructor or Institution before using voice-enabled features.