🤝 Partnerships for churches & organizations
One lossless audio (WAV) engine · four apps
Two programs you can start free: Scripture listening for churches, and a listening check for health and senior organizations.
Churches · ministries · senior ministry · church ESL
📖 Hear the Bible as the sound of life
Speed Bible
Listen to Scripture in uncompressed, lossless WAV original audio. Hear a verse in English while reading the same verse in Korean — Scripture and English listening in one practice.
Lossless WAV original audio
John chapters 1–3 play as 48 kHz lossless WAV — nothing cut away the way MP3 does.
Korean–English side by side
Hear English, read the same verse in Korean, or alternate Korean and English verse by verse (Chinese audio and subtitles in 7 languages included).
Listening speed control
From 1.5× up to 4× — read through faster, and replay any verse as often as you like.
Read together as a church
Create study groups with invite codes so small groups, Sunday school or ESL classes can see each other’s progress.
🎁 Free trial — John 1–3
Download the app and try John chapters 1–3 in lossless WAV original audio, free (app version 1.153.0 or later).
Church and group use
For congregations, denominations, mission agencies and senior ministries, we will work out group use (size, period, setup) with you.
Health · hearing · senior organizations · workplace wellbeing
🎧 Listening Check program
Sound Power
Participants check their own listening with an app, then check again at one-week intervals to see how it changes. Your organization receives only a de-identified summary.
What participants check
1
Hearing age (app estimate)
The highest tone you can hear, compared against an age-group reference curve. It is not a medical age.
2
Audible frequency range
The highest frequency (Hz) you report hearing in a rising tone sweep, left and right ear.
3
English listening
A self-rated score (%) for how much of a set English clip you heard and understood.
Schedule — 2 weeks
- Day 0Briefing and consent → baseline check (all three)~10 min
- Week 1Re-check 1~7 min
- Week 2Re-check 2 → personal change sheet; one-page anonymous summary for your organization~7 min
🎁 2-week free trial — up to 10 people per organization
Larger groups or multiple sites can be arranged separately. After the trial, you can continue with the full 4-week program for more participants.
Please note
- This is a reference-only self-check. It is not a substitute for a professional hearing test.
- If a result is below the reference range for the age group, or shows little change, participants are advised to have a hearing test with a qualified professional.
- Anyone with ringing, ear pain or a sudden change in hearing is told to stop using the app and seek medical care promptly.
📮 Get in touch
Tell us your organization type, group size and location — we reply within 1–2 business days.
Eduo Corp · Seungjong Oh (oSam), CEO · 1511 Mokhwa Milat, 113 Teheran-ro, Gangnam-gu, Seoul, Republic of Korea