Why we built SprachCoach
Language learning apps have been stuck in the same model for a decade — scripted exercises, gamified repetition, pre-recorded audio. They are great for vocabulary but terrible for the one thing that actually matters: real conversation.
We built SprachCoach because we believe learning a language should feel like having a brilliant friend who happens to speak German fluently — someone who talks with you naturally, corrects you gently, remembers where you left off, and adapts to exactly where you are.
That friend is Coach Kai. Powered by Claude AI — the most capable language model available — Coach Kai delivers a genuinely intelligent tutoring experience that no scripted app can match.
Coach Kai · SprachCoach
Why we built De-En Dictionary
Every German learner looks up words dozens of times a day — and most online dictionaries make you wait for pages, ads and slow connections. We wanted a lookup that is simply instant.
De-En Dictionary is Sandithi's second app. It keeps the whole German ⇄ English dictionary on your phone, so meanings, articles, plurals and real example sentences appear while you type — even on a plane or with weak mobile data. You can also speak the word instead of typing it.
It pairs naturally with SprachCoach: practise speaking with Coach Kai, and look up any word in a second with De-En Dictionary. Learn more about De-En Dictionary →
Our values
Learner First
Every decision we make prioritises the learner's progress and confidence. We measure success by how much our users improve, not by how many notifications we send.
Honest and Transparent
Simple pricing with no hidden fees. A privacy policy written in plain English. We never sell your data. What you see is what you get.
Continuously Improving
We ship updates regularly based on user feedback. SprachCoach today is better than SprachCoach last month — and we intend to keep that going.
Accessible Quality
Premium AI tutoring at a price individuals can afford — not just corporations. Learning a new language should not require an expensive human tutor.
Where we are going
SprachCoach launches on Google Play
AI German tutoring with Coach Kai, Azure Neural voice, session memory, and CEFR-adaptive conversation. Android first.
SprachCoach on iOS
iPhone and iPad support. Same Coach Kai experience, now available to Apple users worldwide.
De-En Dictionary — our second app
A fast, offline German ⇄ English dictionary with voice search and example sentences. Android on Google Play, plus a free web app for iPhone.
FrenchCoach launches
The same AI tutoring experience, now for French learners. Sandithi expands to its second language.
Korean, Japanese, and Spanish
Expanding into high-demand language markets. Non-Latin script support — a significant technical challenge we are excited to tackle.
AI Avatar Teacher
Video-based conversation with Coach Kai — a visual AI tutor so natural that learners feel they are speaking with a real person. The ultimate vision.
Try SprachCoach today
3-day free trial on all plans. No credit card required.
▶ Download on Google PlayLooking for a quick word lookup? Discover De-En Dictionary →