TourCast is a Japan-specialized travel guide app created by a developer with experience in a Japanese travel agency, based on tens of thousands of travel feedback and field experience.

During my time at the agency, I organized countless questions and difficulties travelers had in the field into a structure that even beginners can easily understand.

It also includes know-how on how to plan itineraries by region, containing information you can never know unless you read it.

The biggest advantage of TourCast is that all services are 100% free.

Unlike other platforms that require paid e-books, PDF guidebooks, or in-app purchases, TourCast allows unlimited access to all travel information with just simple SNS login.

Without extra payment or subscription, you can check the following key information:

• Transportation pass comparisons
• Recommended itineraries by region
• Directions and timetables
• History and cultural explanations
• Tips for local apps and transportation usage

These days you can easily search for travel info with AI like ChatGPT, but it is not always accurate. Due to data limitations, it can sometimes provide false or hallucinated information.

That’s why ChatGPT displays the following disclaimer:

ChatGPT may make mistakes. Please double-check important information.

• There was a case where ChatGPT provided false medicinal effects and consumption methods for the poisonous 'Amanita muscaria'.
• When asked about Osaka passes, it sometimes recommended the discontinued 'Kansai Thru Pass'.

TourCast eliminates such uncertainties completely.

• Official source links: Each guide includes verifiable references
• Latest updates: Reflects changes in Japanese transport and business info immediately
• All-in-one travel info: Accurate, up-to-date information in one place without visiting multiple sites

When trying to get travel info from online cafes, you often face complicated processes such as membership registration, level-ups, and activity conditions. Some boards even require comments or activity records, creating a high entry barrier for beginners.

In contrast, TourCast allows unlimited free access to all travel information with just simple SNS login, making it easily accessible to everyone.

Recently, some cafes advertise 'free guidebooks' but only reveal part of the info, requiring sign-up or level-up to access the rest.

The bigger problem is that some of these materials are AI-generated content disguised as original work. For example, it states that the Hakata–Kokura route takes 15–20 minutes on the Sonic express, but in reality it takes about 50 minutes. It also falsely introduces the already discontinued Queen Beetle ferry as if it were still running.

Such unverified information presented as original, luring users to sign up or level up, is a clear deception.

Blogs are mainly based on personal travel experiences, so they have the following limitations:

• Hard to verify accuracy or objectivity
• Often not updated with the latest information

Also, since many are impression- or feeling-based reviews, they lack the systematic guidance needed for planning itineraries.

Recently, many people consume travel info through short-form videos on Instagram, TikTok, etc.

However, such content is often incomplete or inaccurate, making it unreliable for accurate information.

• 'Hearsay-level' vague information only
• Fragmentary tips without verified sources
• Exaggerated staging for likes and followers

For example, a video titled 'You don’t need transit cards anymore' makes it look like anyone can register a card in Apple Wallet, but actually it works only on some iPhones with Apple Pay support. Such misleading videos can cause confusion in trip preparation.

To properly prepare for travel, verified information with context is essential.

For free travel, figuring out routes and travel time is one of the biggest challenges. Especially in Japan, where complex train and bus networks make it hard for first-timers to understand routes and transfers.

Knowing where to go is important, but knowing how to get there is far more important. Understanding the transport system in advance allows for smooth, efficient travel without getting lost.

TourCast not only guides optimal routes by region, but also provides train and bus timetables, offering ready-to-use information on the spot.

TourCast’s goal is to provide concrete, practical help so travelers don’t get lost in the complex transport system.

TourCast guidebook goes beyond simple directions. It introduces each region’s history, culture, and ties with Korea, helping you gain deeper understanding of the destinations.

As a 'real travel guidebook' with reading value, it offers not only information but also intellectual curiosity and insights.

• Osaka Castle: Includes exhibits glorifying Toyotomi Hideyoshi — requires critical perspective
• Yakiniku & Horumon: A culture influenced by Koreans
• Kyoto Ear Mound: Why parents scold kids saying 'Ebiya Ebiya'
• Traces of Goryeo Sambyeolcho in Okinawa: Evidence of temporary cultural transmission
• Why Shinkansen noses are pointed: To prevent 'tunnel sonic boom' noise

TourCast covers everything from basic info for first-time visitors to Japan to detailed tips and cultural differences even repeat travelers often miss.

• Currency exchange methods and precautions
• SIM/eSIM usage guide
• Recommended local apps and install tips
• Transport pass recommendations and how to use them
• How to plan itineraries
• Cultural differences and etiquette

A must-have guide useful for all travelers regardless of experience, ensuring safer and more fulfilling trips.

TourCast is designed with a mobile-optimized, intuitive UI instead of complicated blogs or PDFs, so you can quickly access what you need.

It’s useful not only before departure but also during your trip, making it highly practical.

It provides guidebooks and packing lists, as well as discount coupons, recommended hotels, and rental car bookings, simplifying trip preparation.

It also includes balance checks for IC cards, instant menu translations, travel Japanese support, and Japanese-style camera filters, making it a reliable companion from start to finish.