Privacy Policy for Deruki

Last Updated: June 2026

Deruki is an AI-powered communication and interview preparation platform designed to help users improve English speaking, communication confidence, and interview performance. This Privacy Policy explains how Deruki collects, uses, stores, and protects information when you use our mobile application.

Information We Collect

Audio Recordings

When you use speaking practice or interview features, Deruki may record audio sessions that you initiate. These recordings are primarily stored locally on your device unless a future feature explicitly allows cloud backup or sharing.

Speech Transcriptions

Audio recordings may be converted into text using speech recognition technologies to provide feedback, analysis, and learning insights.

Usage Analytics

Deruki may collect anonymous usage information such as feature usage, app performance, crash reports, and device information to improve reliability and user experience.

Account Information

If account creation is offered, we may collect information such as your email address, profile information, and subscription status.

How We Use Information

We use collected information to:

• Provide speaking practice and interview coaching features.
• Generate speech transcripts and learning insights.
• Measure learning progress.
• Improve AI-powered feedback.
• Enhance application stability and performance.
• Provide customer support.
• Manage subscriptions and premium services.

Storage of Recordings

Most recordings are stored locally on your device and remain under your control. You may delete recordings at any time using the storage management features provided within the application.

AI Processing

Deruki may use artificial intelligence and speech processing technologies to analyze speech, generate transcripts, evaluate communication skills, and provide educational feedback. These technologies are used solely to improve the learning experience.

Data Sharing

Deruki does not sell personal information to third parties. Information may be shared only:

• With trusted service providers necessary to operate the application.
• To comply with legal obligations.
• To protect user safety, rights, and platform security.

Children's Privacy

Deruki is intended for general audiences. Parents or guardians should supervise children using the application. We do not knowingly collect personal information from children in violation of applicable laws.

Data Security

We take reasonable technical and organizational measures to protect user information from unauthorized access, disclosure, alteration, or destruction.

Your Rights

You may:

• Delete recordings stored on your device.
• Request deletion of account-related information where applicable.
• Contact us regarding privacy concerns.

Future Features

As Deruki evolves, additional features such as AI Interview Coach, cloud synchronization, teacher feedback, video sharing, and premium services may be introduced. This Privacy Policy may be updated accordingly.

Changes to This Policy

We may update this Privacy Policy periodically. Any updates will be posted on this page with a revised effective date.

Contact Us

For questions regarding this Privacy Policy, please contact:

Email: support@deruki.com