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Data deletion

Tensu Navi / Calshe LLC Last revised: October 13, 2026

This document is a translation provided for reference only. If it differs in content from the Japanese original, the Japanese original prevails.

This page explains how to delete your data in Tensu Navi.

1. Delete from within the app (takes effect immediately)

Open the Tensu Navi app
"Delete all history" on the "Other settings" screen (erases the calculation history from your device)
Confirm and proceed

Only the history on your device is erased. Information sent for ads or usage analysis is not erased (see "Request deletion of information held by us" below). This cannot be undone.

2. Uninstall the app (takes effect immediately)

The App's data is stored only on your device. When you uninstall the App from your device, the stored data is erased along with it. No user data remains on our servers.

3. Request deletion of information held by us

We accept requests to delete the records sent for usage analysis (Firebase Analytics). We will identify your records using the ID below and delete them.

We cannot delete information held by ad delivery providers. Please delete or reset your advertising ID in your device settings.

info@calshe.net

To verify your identity, please provide one of the following.

The "Contact ID" shown on the app's "Other settings" screen (tap to copy) (with this, we can identify and erase the records sent for analysis)

We will process your request within 7 business days and notify you when it is complete.

4. What is not deleted

Statistics that cannot identify individuals - aggregated data in a form that cannot be traced back to a specific individual
Records that we are required by law to retain - where applicable, kept only for the required period
Information held by ad delivery providers - handled according to each provider's rules. You can reset your advertising ID in your device settings