Privacy policy

Kokocho (iOS / Web) · Operated by 4px LLC · 2026-09-22

Kokocho keeps the places you went, with one tap, on your device. The app has no accounts, collects nothing that identifies you, and shows no ads. The App Store version has no analytics either. The operator runs no server, and records never leave your device.

Location

Your location is used only to put a place into a record.

Location is handled on your device only and is never sent to the operator's servers (there are none). You can withdraw location permission in your device settings at any time; you can still pick a place on the map and record it.

How the shared URL works

When you share, the place (latitude and longitude), date and note go into the part of the URL after the “#”. No login is needed. Photos are not included. Browsers never send the part after “#” to a server, so opening the URL leaves no record with the operator. You send the URL yourself; it never reaches the operator. A URL you have sent cannot be recalled (there is no server, so we cannot delete it either). The page that opens a shared URL draws the map from the URL alone, stores nothing, and has no analytics.

A review screen appears before sending. You can choose to round to a rough location (about 1 km). If you set your home location in Settings, sharing a place near it shows a warning. Home stays on your device and never goes into a URL.

External services

The app receives map tiles from the following service. Each service handles data under its own terms.

ServicePurposeLocation
Geospatial Information Authority of Japan (cyberjapandata.gsi.go.jp)Map tilesTiles for the area you are viewing. Your coordinates themselves are never sent

What stays on your device

Records, settings and attached photos are kept on your device. Photos are stored inside the app's own storage; the app never asks for access to your whole photo library (only the photos you pick are read). Temporary copies of fetched data, such as map tiles, may be kept on the device. They are gone when you delete the app. Nothing that identifies you is created.

Children

The app can be used at any age. Since no personal data is collected, there is no difference in handling by age.

Changes

When this policy changes, this page is updated and the date at the top is revised.

Operator and contact

4px LLC
support@4px.jp

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