About SAUNA
So that foreign languages don’t stand in someone’s way
우리가 어떤 마음으로, 무엇을, 어떻게 만드는지 이야기할게요.
Supersalt Story
Become someone like salt in the world
Connection of Two Names
When sweat dries, it becomes salt
땀의 주성분은 소금입니다. 사우나에서 흘린 땀은 사라지지 않고, 시간이 지나 기억과 숙련과 성장으로 결정화됩니다.
우리의 미션
외국어가 인생의 장애물이 되지 않도록
Why in the AI era
In the AI era, why learn a foreign language?
Feel the Texture of Culture
Even if AI moves the letters, it can’t move the air and the ink inside them.
The moment you meet face to face—without a device
Eventually, the moment comes when you have to open your mouth yourself.
The Basics for Using AI Properly
Someone who knows whether the translation is correct is someone who knows that language.
My Growing Experience
Only the sweat you’ve shed yourself becomes fully yours.
For whom
Who is this service for?
네 가지 학습
Four Learning
Word
Even if it’s wrong, there’s nothing to lose. It means we’ll get another chance to meet.
- Don’t throw “school” and “academy” together. Start with the meaning you need right now.
- Read, listen, write, and speak. Build these four strengths separately.
- The words you’ll review today—we’ll pick them for you. Give us 5 minutes.
Grammar
Don’t memorize grammar. We’ll help you switch to the body’s sensations that react the moment you see it.
- A new example comes up every time. So I can’t memorize it and get it right.
- Start with the basics—one layer at a time. You don’t learn everything at once.
- Memorized words become grammar examples, and learned grammar brings words to life.
Diary
If you write in a foreign language, AI will fix it and cheer you on.
- If you feel stuck, start with “What did you do today?” I’ll show you examples that include the vocabulary and grammar you learned.
- Side by side today, one year ago — I feel like I’m growing even without any tests.
- Write a letter to yourself a few years from now. When that day comes, open it together.
Self Service
When the bell rings, answer. The person in the story calls you.
- The words and grammar you memorized today become the dialogue exactly as they are.
- We don’t judge by score. We’ll show the original lines alongside your voice.
- The more you repeat the same scene, the faster—your body remembers it, even without subtitles.
Word
Memorized Phrases
Grammar
Body-embedded structure
Diary
A Sentence for My Day
Self Service
Conversation spoken out loud
Your service doesn’t feel disconnected. Memorized words become diary entries, then phone conversation lines—and mistakes in your diary turn into review again. Let AI polish what I write and say—examples, grammar, journal entries, and calls.
How to Remember the Sweat You Shed
How to Remember the Sweat You Shed
되돌려줌
잊을 즈음, 잊은 것만 골라 다시 꺼내줄게요.
보여줌
얼마나 자랐는지, 눈으로 보여줄게요.
Congratulations
In meaningful moments, I’ll be happy with you.
A Return That Isn’t in Vain
Review you didn’t do today won’t disappear. Let’s meet again tomorrow and fill it in together.
Rediscover Forgotten Words
It’s okay if you forget words you once learned. Meet them again as “forgotten words,” and this time, help them stay longer.
My Sweat Map
A record that captures every drop of sweat at a glance
Your daily traces don’t disappear—they remain as patterns.
Learning as a habit
학습을 습관으로, 땀 흘린 만큼 돌려받기
Consistency, as a rating
매일의 한 걸음이 등급으로 쌓이고, 외부 결제로는 올릴 수 없어요.
Get back what you sweat for
광고 수익은 회사가 갖지 않고, 꾸준히 땀 흘린 학습자에게 환원돼요.
Travel: the final reward
Go to your learning language’s region and try it firsthand — for some, it’s an opportunity.
Habit Level
Like a decision growing, your consistency becomes clearer.
Bronze
Silver
Gold
Platinum
Sapphire
Ruby
DiamondThis is a level you can’t publish via external payments. Only learning that’s actually completed changes the density of your decisions.



Reward Graphics
Redemption is remembered not just as numbers, but as moments.
Use the owned effect assets from 01-23/24 to show ad returns and milestones as “a scene where sweat is shed instead of something shady.”
- Gemstone decisions are tied to rewards and premium achievements
- Salt crystals never disappear—effort that endures
- Warm light brings the joy of milestones
Evidence-based learning
왜 효과가 있는가 — 근거 기반 학습
Forgetting Curve Review
잊을 즈음 다시 꺼내, 같은 시간에 더 많이 남게.
Habit Science
습관 형성에 평균 약 66일이 걸린다는 연구를 반영.
International CEFR Standard
레벨과 콘텐츠를 국제 표준 위에서 설계.
Quantitative evidence data
보이는 모든 단어·예문이 근거 위에 만들어집니다.
CEFR Level Badge
Growth made clearer by international standards
A1
A2
B1
B2
C1
C2From A1 to C2, level labels are organized based on international standards and learning evidence—not guesswork.
Brand Story
Brand Story
The language platform that remembers your effort
A place that removes impurities that turn foreign languages into life’s obstacles

Welcome
It’s okay to drop by after a long time. Haru always welcomes you with even more warmth.

Support
Not talkative. She watches quietly, then speaks when it matters most.

Joy
Not “Good job.” Say, “You did it.”

Peace of Mind
It’s okay. Just getting back now is enough for us to continue.

Awe
Let’s quietly check in—without missing even small progress.

Waiting
If you open the door again, Haru will be waiting right there.
Global Vision
처음부터 글로벌을 전제로 설계합니다. 국제 표준(CEFR·ISO) 위에서, 새 언어를 데이터 추가만으로 확장합니다.
Trust and Responsibility
미성년자 보호와 보호자 동의를 핵심 전제로 둡니다. 숨기지 않고, 가두지 않습니다.
Privacy
You always decide who can see my records. By default, it’s set to “Only me.”
Transparent Operations
모르게 올리는 가격도, 해지를 어렵게 만드는 장치도 없어요.
Honest Rewards
There’s nothing you get by luck. It’s exactly as much as the sweat you’ve shed.
