This page explains how to delete your ToSche (provided by Synthera) account and data. The formal rules are in Section 8 of the Privacy Policy and Section 15 of the Terms of Service. Privacy Policy: https://todo-phoneapp.pages.dev/legal/tosche/en/privacy.html
Select "Settings" → "Delete Account" and verify your identity (enter your password or an email code (version 2.9.0 onward) if you registered with an email address, or sign in again if you registered with Apple or Google; if you registered with Apple or Google and have set up two-step verification, enter the code from your authenticator app). Your account and the data linked to it are deleted. Deleted data cannot be restored. • ToSche and our app "Jinsei Road" (人生Road) use the same account. If you use Jinsei Road with the same account, the Jinsei Road account and data are deleted as well. • If a shared calendar you created has other members, it is handed over to another member and its events remain. • Your Paid Plan is not cancelled. Cancel it first from Settings on your iPhone → your name → Subscriptions.
"Settings" → "Delete All Data" deletes events in calendars only you see, time blocks, routines, deadline tasks, tasks, workspaces, goals, AI conversations, AI memory, and more, while keeping your account (version 2.9.0 and later). The confirmation screen shows what is deleted and what remains.
• AI conversations: one by one from the history on the AI screen, or all at once from "Settings" → "Delete chat history" • AI memory: one by one from "What AI remembers", or all at once with "Reset AI memory" • Connections to external AI services and API keys: from "Connected apps" • Events, tasks, goals, and so on: from their own screens
If you cannot delete your account in the App, for example because the App is not installed or you cannot sign in, send "I would like my account deleted" to support@synthera.jp from the email address registered with ToSche (if you cannot send from your registered address, including Apple's "Hide My Email" relay address, write from an address where we can reach you and include your registered address in the message; we will explain how to verify your identity. Do not send passwords or verification codes). After confirming that you are the account holder, we will, as a rule, delete it within 30 days and let you know when it is done.
Some data remains for a period after your account is deleted, such as backups of our cloud infrastructure, information sent to outside services (the AI provider, usage analytics, and purchase verification), and records of purchase notifications. For details, see Section 8 of the Privacy Policy.