Retro Walk is a unique location-based application built with Flutter that allows users to stroll through Japanese streets while viewing historical maps. Experience a "time-traveling" walk by comparing present-day scenery with maps and layouts from different eras.
This service is available exclusively in Japan, utilizing specialized historical map data covering various regions across the country.
- Time-Travel Maps: Seamlessly switch between maps from the 1950s, 1960s, 1970s, 1980s, and the present day.
- GPS Integration: Real-time display of your current location on historical maps, allowing you to identify what stood in your spot decades ago.
- Historical Exploration: Discover old building footprints, vanished landmarks, and the evolution of urban planning.
- Framework: Flutter
- Language: Dart
- Logic: Complex integration of GIS (Geographic Information System) data and GPS synchronization to align historical map tiles with modern coordinates.
- Target Market: Japan 🇯🇵
Note: This repository contains the core logic and source code. Assets (map tiles, historical data, and localization files) are excluded to protect intellectual property.
This app is part of a global initiative to release 50+ high-quality mini-apps. While this specific tool is a dedicated tribute to Japanese history and urban evolution, it demonstrates the powerful combination of geolocation technology and archival data.
© 2026 Akira Ohmachi / ao-system, Inc. - Distributed under the MIT License.