This page is an English translation of the Japanese Privacy Policy, provided for reference only. If there is any discrepancy between this translation and the Japanese version, the Japanese version prevails. 日本語版 (authoritative)
Last updated: September 30, 2026
"Tabi no Ashiato" (the "App") is an app for sharing travel records with family and friends. This policy explains what information the App collects and stores, and how it is handled.
The information you enter (including photos and videos) is stored in Cloudflare's database (D1) and storage (R2). We do not sell or provide it to any third party other than the App's developer. We do not track you for advertising.
The App currently has no paid features, plans or ticket packs. All features are free to use. For that reason, we do not collect or store payment information such as credit card numbers.
Anyone who knows the URL (invite link) issued for each trip can view, edit and delete the contents of that trip (including photos and videos), even without logging in. Send invite links only to people you trust, such as those who traveled with you. Some features, such as likes, comments and AI-assisted import, require logging in (by email, Google, Apple or LINE). The App is designed for sharing among people who know the URL and is not intended for public release to an unspecified audience. Likes and comments on trips and records are also shown, together with the account name, to anyone who knows that trip's URL (email addresses are not shown). Inappropriate comments can be reported; the operator reviews reported content and deletes it when necessary.
For login, we use Google Identity Services (login with Google), Sign in with Apple (login with Apple) and LINE Login (login with LINE, provided by LY Corporation). The privacy policy of each company also applies when you use them.
Voice input, note organizing, receipt scanning and screenshot import: When you use "Record by voice or notes", the audio you recorded and the note text you entered are sent; when you use "Scan receipt", the receipt photo is sent; and when you use "Create activities from screenshots", the screenshots (images) you chose are sent, to the services below for reading the content and transcription. We do not send information that identifies you, such as your name or email address. The first time you use these features, the App shows an explanation of where the data is sent and asks for your consent before sending (without consent, the features cannot be used).
Under OpenAI's API terms of use, data sent is not used for model training by default.
Place search, maps and route guidance: Text you enter in the "Search by place name" field, and shop or place names in map links you paste into a record, may be sent to the services below to look up place candidates and coordinates. None of them receive account information (name, email address, etc.).
Foreign currency conversion of costs: To get exchange rates when you enter cost items in a foreign currency, only the currency code and date are sent to Frankfurter (api.frankfurter.dev) or fawazahmed0/currency-api (served via jsDelivr). Your name, email address and the like are not sent.
Separately, the feature that lets you have your own AI service create a draft schedule (in JSON format) and import it works by you copying the prompt, pasting it into that AI service yourself, and pasting the answer it returns into the App. The App does not send that content anywhere (that AI service's terms of use apply when you use it).
You can delete a trip's records at any time with the App's delete features. Information tied to the account you're logged in with (name, bonus uses, links to trips you joined, likes and comments) can be deleted by you at any time from "Delete account" on the My Log screen. To prevent abuse of the free monthly usage allowance by repeated sign-ups, only the email address and that month's voice input usage count are retained for abuse prevention (even if you sign up again with the same email address, that month's usage count is not restored). If you want a complete deletion including the email address, please contact us at the contact below.
The App is intended for use by families, but please create accounts and log in at the family's discretion and under parental supervision.
This policy may be changed as needed. Changes take effect when they are posted on this page.
For any questions about the App, please contact the developer.