Daegan Maru
Last updated November 12, 2026
Data Not Collected
Daegan Maru is a personal journal for walking the Baekdudaegan ridge, built to stay on your phone. This page explains, plainly, what the app does and does not do with your information.
Everything you enter in Daegan Maru — your section statuses, day-log entries, notes, shelter bookings, forecast thresholds, theme choice and the photos you attach to a day or a summit-stone seal — is stored only on your device, using Apple's on-device SwiftData storage. None of it is uploaded to us or to anyone else. We do not operate any server that receives your journal.
To show a weather outlook for your next planned section, Daegan Maru sends the fixed geographic coordinates of that section's two passes — values built into the app's own catalog, not your location — to the free Open-Meteo weather service. No account, device identifier, name or other personal data is included in that request. The response is cached on your device for a few hours so the app can show it again without asking the network every time. If you have no connection, or you decline network access, the rest of the app works exactly as before; the forecast screen simply shows your last cached result or asks you to try again.
Daegan Maru asks for camera access only when you choose to photograph a summit stone, and for photo library access only when you choose to pick an existing photo for a seal or a day-log entry. Photos you choose this way are saved into your private on-device journal; they are never sent anywhere. You can decline either permission and still use the rest of the app; summit-stone logging without camera or photo access is simply unavailable until you grant it from Settings.
If you turn on the optional Friday planning reminder or the closure reminder in Settings, Daegan Maru asks the system for permission to show a local notification at that point, not before. These notifications are generated and scheduled entirely on your device. If you decline, the app explains that and offers a link to Settings in case you change your mind later; nothing else about the app is affected.
If you use the share button on a day-log entry, a section or a summit-stone seal, Daegan Maru hands the system share sheet a card image and text that you explicitly chose to share, and it is sent only to the destination you pick (Messages, Mail, saving to Photos, and so on). We have no visibility into, and play no part in, that exchange.
Daegan Maru is a general-interest hiking journal, is not directed at children, and does not knowingly collect any information from anyone, child or adult, because the app collects nothing at all off the device.
If this policy changes, the updated version will be posted at this same address with a new "last updated" date above.
Questions about this policy can be sent through the support page's contact form.