Privacy Policy

This Policy applies to Echoling products, websites, applications, APIs, and related services operated by Firefly Labs Studio.

Echoling is an English speaking practice tool built around real expression, AI generation, model audio, recording, transcription, speaking assessment, learning records, and review.

To provide and improve the service, we may collect the following information:

• Account information, such as email address, display name, login status, registration time, and plan or entitlement status.
• Learning and practice information, such as practice text, AI-generated expressions, keywords, vocabulary records, practice history, check-ins, preferences, English level, interface language, and timezone.
• Audio and speech information, such as recordings, audio duration, transcription results, model audio, pronunciation scores, fluency scores, completeness scores, and related feedback.
• Device and log information, such as access time, request logs, error logs, browser or device information, IP address, cookies, and similar necessary technical information.
• Feedback and contact information, such as support messages and the context needed to handle your request.

We use the collected information for the following purposes:

• Creating and maintaining accounts, identifying login status, and protecting account security.
• Generating more natural English expressions, vocabulary explanations, model readings, and practice materials based on your input.
• Providing speech recognition, speech synthesis, speaking assessment, recording replay, and learning record features.
• Saving practice progress, history, preferences, check-ins, and review information.
• Troubleshooting issues, analyzing service quality, preventing abuse, and maintaining system security.
• Responding when you contact us or submit feedback.

To provide product features, we may use third-party services. These services may process your text, audio, request logs, or technical information only as necessary to provide the relevant functionality.

• AI service providers, for expression generation, vocabulary explanations, AI feedback, and topic recommendations.
• Speech service providers, for speech synthesis, speech recognition, pronunciation, fluency, and completeness assessment.
• Cloud service providers, for application operation, data storage, file storage, caching, security protection, and access acceleration.
• Email service providers, for registration, login, password reset, and service notification emails.

We store account, practice, recording, assessment, and log information as needed for the service, using necessary cloud and storage services.

We do not store your account password in plaintext, and we use security measures such as encryption and hashing to protect account credentials.

Online service transmission uses encrypted channels such as HTTPS to reduce the risk of interception or tampering during transmission.

We take reasonable technical and organizational measures to protect information, including access control, least-necessary use, permission management, and log review. No internet service can be absolutely secure, and you should also keep your account credentials safe.

We retain information only for as long as needed to fulfill the purposes described in this Policy, comply with legal obligations, resolve disputes, or protect security.

If you want to access, correct, export, or delete personal information, or close your account, contact us at contact@fireflylabs.studio. We will handle your request within a reasonable period, but information required by law or needed for security, audit, or dispute handling may not be deleted immediately.

Where applicable law allows, you may:

• Access or correct your account profile, learning preferences, and related records.
• Request deletion of specific practice content, recordings, or account information.
• Withdraw permissions for microphone, recording, cookies, or similar features.
• Stop using the service or request account closure.

Echoling is mainly intended for users who can manage their own learning and account use. Minors should obtain consent from a guardian before using the service and use it under appropriate guidance.

If a guardian believes a minor has provided inappropriate information to us, they may contact us using the contact details in this Policy.

We may update this Policy based on product features, service operations, or legal requirements. When updated, the page will show the new effective date.

If an update includes material changes, we will try to notify you through in-product notices, email, or other reasonable methods. Continued use of the service means you accept the updated Policy.

If you have questions about privacy, personal information handling, or this Policy, contact Firefly Labs Studio at contact@fireflylabs.studio.