Deruki

Deruju Labs

In-app purchases

About this app

Deruki is an AI-powered communication confidence coach designed to help you improve your speaking skills through consistent practice.

Whether you're preparing for job interviews, public speaking, presentations, group discussions, or everyday English conversations, Deruki provides structured exercises that help build confidence and fluency.

Key Features:

• Practice speaking with guided communication challenges
• Interview preparation exercises
• Public speaking and presentation practice
• Storytelling and confidence-building activities
• Speech transcription and feedback
• Track your speaking progress over time
• Audio and video practice sessions
• Offline-first design for privacy and uninterrupted learning

Privacy First:

Deruki is designed with a privacy-focused approach. Your recordings and practice data remain on your device unless you explicitly choose to share them.

Who is Deruki for?

• Students preparing for interviews and presentations
• Professionals improving workplace communication
• Job seekers practicing interview skills
• Anyone looking to become a more confident speaker

Start practicing today and build the communication skills that create opportunities in education, career growth, and everyday life.

What’s new

Welcome to Deruki — your offline-first speaking confidence coach.
• Practice interview, public speaking, storytelling, impromptu, and read-aloud — on your schedule
• Record sessions and get speech feedback with on-device transcription
• Build daily habits with streaks, progress tracking, and weekly insights
• Follow the 30-day Confidence Journey at your own pace
• Works without internet — your practice stays private on your device
• Optional Google Drive backup to keep recordings safe