Support

The fastest way to reach us is from inside the app. Tap Profile → Help · Contact us to send a message, and read our reply under "My tickets" in the app.

If you cannot use the app, or for account and privacy requests, email us at dooully@hblood.co.kr

We reply within 3 business days. Replies may be in Korean or English.

FAQ

How do I earn coins?

Win in "Duel". Win streaks, your first win of the day and daily missions give extra. Practice mode does not earn coins.

Will I lose my progress if I delete the app?

A device account that was never signed in cannot be restored after the app is deleted. If you signed in with Google or Apple, sign in again to continue.

Could my Duel opponent be an AI?

If no opponent is found, an AI opponent may be assigned (Terms of Service, Article 6).

Hot Blood (핫블러드) · Business registration number 288-08-00800 · Mail-order business registration number 2024-경기하남-0182 (Hanam-si, Gyeonggi-do) · +82 70-7666-9768