Pronunciation Perfected

Master English Pronunciation in Just 15 Minutes Daily

The only research-driven pronunciation app that understands Korean and Japanese speakers' specific challenges. No overwhelming lesson libraries - just a clear 365-day path to confident speech.

Find out more Download now

Join thousands of Korean and Japanese learners improving their English speaking confidence

No randomly scattered lessons, just tanglible results. While other apps overwhelm you with too many random lessons, soundperfect gives you exactly what you need: a clear 365-day path designed specifically for Korean and Japanese speakers. We follow research-proven language acquisition principles to guide your daily pronunciation progress incorporating fun challenges and detailed, instant feedback that keep you motivated through your entire journey.

Research-Based Progression

Start with high-impact sounds that matter most. Our curriculum follows functional load and suprasegmental principles—targeting errors that have the greatest impact on listener comprehension first.

Korean & Japanese Focused

An app that understands your specific challenges. We tackle everything from why Korean ㄹ and Japanese ラ don't match English /l/ & /r/, consonant clusters, how to handle TH (/θ/ & /ð/) sounds that don't exist in your language, stress patterns, long vowel sounds etc.

Structured 365-Day Path

Follow our proven daily journey from basic sound distinctions to confident professional communication. Just 15 minutes daily - the optimal practice time for pronunciation improvement.

See soundperfect in Action

Advanced feedback technology that shows you exactly how to improve your pronunciation.

📱 App Interface Preview

Real-time pitch visualization, color-coded phoneme feedback, progress tracking

Built for Your Success

We studied what makes pronunciation apps frustrating for Korean and Japanese learners—then built the solution.

Other apps assume advanced vocabulary, overwhelm you with options, and ignore your native language background. soundperfect starts at the beginning, guides you step-by-step, and addresses the exact pronunciation challenges Korean and Japanese speakers face. Our research shows that high functional load errors like L/R (/l/ & /r/) distinctions and emphasis on suprasegmentals through the use of linguistic mimicry have the greatest impact on comprehensibility—so we prioritize them first.

Curriculum Overview

Phase 1

High-Priority Foundations (Weeks 1-12)
Focus:
Highest functional load sounds that impact comprehensibility most

Phase 2

Prosody & Connected Speech (Weeks 13-24)
Focus:
Word stress, rhythm, intonation, and linking sounds

Phase 3

Real-World Application (Weeks 25-36)
Focus:
Professional, academic, and daily life communication

Phase 4

Advanced Fluency (Weeks 37-52)
Focus:
Complex expressions, cultural integration, and comprehensive mastery

Simple, Transparent Pricing

Professional pronunciation training for 60% less cost than competitors. Start with a 7-day free trial and be reassured by the full money-back guarantee.

Monthly
₩6,900
per month
  • 7-day free trial
  • Monthly unlocks
  • Advanced feedback technology
  • Progress tracking
  • Cancel anytime
Annual
₩57,960
per year
Save 30% (₩24,840)
  • 7-day free trial
  • Complete 365-day curriculum
  • Advanced feedback technology
  • Progress tracking
  • Just ₩160 per day

Why soundperfect?

Advanced technology and research-based approach that delivers real results. Over 95% of users feel more confident in pronouncing English after using soundperfect

Advanced Feedback

Phonemes, fluency, missed sounds, intonation analysis etc.

60% Cheaper

vs. Alternatives

7-Day Cycles

Structured Learning Path

Time Saving

Just 15 minutes per day

What Our Users Say

Real feedback from Korean and Japanese learners transforming their English pronunciation

No more guessing if I'm pronouncing words correctly or getting stress right - I see exactly what needs adjustment
lim

Ji-yoo Lim

Software Engineer, Ansan

In just a few months I am already more confident in meetings, presentations, and daily conversations
tanaka

Yuki Tanaka

Marketing Manager, Fukuoka

Finally, an app that knows why I struggled with things like 'rice' and 'lice', and helped me sort it out!
lee

So-young Lee

Graduate Student, Incheon

Ready to improve your English Pronunciation?

Join the structured, research-based journey designed specifically for Korean and Japanese speakers.

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