Observed arrival · 2026-09-06

めんてどき: A Maintenance Calendar for the House

mentedoki.app Observed source

Editorial interest 81/100 Selection signal · not a rating of the site

A Japanese homeowner app estimates when major repairs are due and what they may cost, using a house’s age and equipment.

Landing page captured for the 2026-09-06 issue.

Field notes

The planner builds a house-specific schedule from construction year, equipment, and 28 stated maintenance cycles. Its sample covers items including exterior-wall painting, slate-roof painting, wallpaper, and an EcoCute water heater, with a ten-year estimate ranging from ¥6.95 million to ¥15.6 million. The site also describes records containing photos, costs, and contractor names, which can recalculate later dates and serve as a maintenance history when selling the property.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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