Unofficial app to manage and compare Ichijo's drawings, estimates, specs.
100+ downloads
About Ichijo Owner's Notebook
Ichijo Owner's Notebook is a house & home app developed by Smartolio.
Download Statistics
Ichijo Owner's Notebook has been downloaded 230 times. In the last 30 days, the app was downloaded 25 times. It is ranked in the top 100 house & home apps.
User Ratings
The app has no ratings yet.
App Information
Ichijo Owner's Notebook is FREE to download. The APK download size is 62.73 MB. The latest version available is 1.11.0. The last update was on August 10, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play April 2026.
Description
An unofficial app for Ichijo Komuten home owners.
Just import PDFs of drawings, estimates, and specifications, and the app covers centralized document management through version comparison. Catch revisions to your drawings that slipped past you, and see exactly which line items in your estimate changed and by how much — all from one phone, with one hand.
Your imported drawings, estimates, notes, and other data stay only on your phone. Nothing is sent over the internet. (Information collected is limited to what is needed for ad serving and statistical analytics.)
■ Document management Automatically organizes every file by drawing number. You won't get lost no matter how many revisions pile up.
■ Drawing comparison Compare two versions of CAD or electrical drawings pixel by pixel. Additions appear in blue, deletions in red. Includes position adjustment and size alignment. Spot unexpected changes you might otherwise miss.
■ Estimate comparison Automatically parses estimate PDFs and shows the cost difference between two versions in a summary. A trend table also lets you view amount changes across multiple versions at a glance. (Estimates must be in Japanese format.)
■ Specification check Automatically detects changes in equipment specifications and shows the differences color-coded by item. (Specifications must be in Japanese format.)
■ Uchimemo+ (Quick notes) Long-press anything while reviewing drawings or estimates to leave a note. You can also export the notes you've prepared for your next meeting.
■ Electricity Report Useful even after move-in. Just import the CSV from i-Sapo to visualize your "total savings" from solar generation and battery storage. See your selling income, self-consumption savings, and battery savings together in monthly, yearly, and cumulative views.
■ Maintenance Check off recurring home maintenance — ventilation filters, range hood, and more — with one tap. 42 built-in presets with adjustable intervals, plus consumables inventory tracking and reminder notifications.
■ Other features Bookmarks (shortcuts to drawings, estimates, and comparison results), Schedule (home-building milestone tracker with a home-screen countdown), My Page, and more.
[Highlights] - All document data is processed on your device (no external server) - ZIP-based backup and restore - CSV export for various data
* This is not an official Ichijo Komuten app. It is an unofficial tool with no affiliation to Ichijo Komuten Co., Ltd. * If Ichijo Komuten changes its document formats, parsing may not work correctly.
Recent changes: Improvements to Drawing Check:
■ Page pairing (new) Choose which pages to compare between the old and new versions — helpful when pages were added or removed between revisions. When the versions have different page counts, a notice appears and takes you straight to the pairing editor.
■ Step-by-step alignment guide The Align position screen now shows a simple 3-step guide (Prep → Landmark → Finish) so you can overlay drawings with confidence.
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