Contact & support
We read every message.
The fastest way to reach us about anything — questions, bugs, refunds, cancellations, privacy.
Response time
We usually reply within 2 business days (Monday–Friday, Berlin time). Refund requests are processed within 3–5 business days.
Please include
- Which app (DeutschFlow / ChineseFlow) and which device and browser
- For payments: the email used at checkout and your Lemon Squeezy order number
- For bugs: what you did, what happened, and a screenshot if possible
Inside the apps
Each app has a feedback button. Reports go straight to us together with the page you were on.
JapaneseFlow launch list
Want to know when JapaneseFlow opens? Email us with the subject “JapaneseFlow”.