Privacy notice

Yohaku Flow Beta · Updated October 13, 2026
This notice describes the account and collaboration services at app.yohakuflow.com. Contact: support@yohakuflow.com.

Account information

We process your email, nickname, verification status, sign-in sessions, and security information such as IP address and browser information to provide accounts, verification, access review and abuse prevention. Passwords are stored as hashes. If you choose Google sign-in, we receive your Google account identifier and basic profile information, including your name, email and profile image. We do not request access to Gmail messages or Google Drive files.

Your canvas and collaboration

Your personal canvas is saved on your device or in files you export. Your account does not provide cloud canvas backups. During collaboration, canvas content is shared with participants in your room. Connections use direct browser communication when available, with Cloudflare relay as a fallback. Connection services process room membership, nicknames and connection status. Participants may retain copies of shared content; download controls cannot prevent all forms of copying.

Permissions and usage

We store collaboration permissions, access requests, administration records and relay or device-reported usage to operate the service and prevent abuse. Relay usage is attributed to the room creator and statistics may be delayed.

Service providers

Cloudflare provides website hosting, account storage, connection and relay services, and verification email delivery. Google provides optional Google sign-in. Zoho handles support email. These providers may process data in different countries. Account information is used to operate and secure Yohaku Flow, not to sell personal information or serve targeted advertising.

Storage and your choices

You can edit your nickname, change your email-account password, and sign out in the member center. We retain account and usage records while operating the service. To request access, correction or deletion of your account information, contact support@yohakuflow.com. Backup copies and provider logs may not be removed at the same time as active account records. Removing your account does not erase local canvases on your devices or copies held by other participants. You can revoke Google access in your Google Account settings.

Changes

We will update this notice when our data practices change. The date above identifies the current version.

隱私說明