Clear answers about the Web trial, iOS edition, devices, and support.

Jiseikou Studio creates multilingual interactive picture books for families to read together. The free Web trial offers selected content in a browser, while each iOS App book is sold separately as a full version.

Both the free Web trial and the iOS App version of Vehicle Friends are primarily designed for children ages 2–5 and adults reading with them.

Vehicle Friends supports Traditional Chinese, Japanese, and English in both the free Web trial and the iOS App.

The free Web trial opens selected reading and interactive content in a browser without payment. Each iOS App book is a separate one-time purchase with no Jiseikou Studio account, no ads, and offline reading support.

Both the free Web trial and the iOS App are designed primarily for shared family reading. Children can explore pictures and sounds while an adult guides, chooses a language, and reads along. The content does not replace adult involvement or guarantee a specific learning outcome.

Vehicle Friends offers Traditional Chinese, Japanese, and English in both the free Web trial and the iOS App, so families can choose the language that suits them. Available text and audio follow the content provided in the current version.

Vehicle Friends and its free Web trial are currently available from the main site. When released on iOS, its full version will be sold as a separate book.

Jiseikou Studio hopes to release picture books on more themes. New titles, content, and release details will be announced only after they are confirmed, with Web trial and iOS App availability shown separately.

No. The free Web trial does not make a purchase. Each iOS book is a separate one-time purchase, so buying Vehicle Friends unlocks only this book; future books are sold separately.

Yes. Open the free trial on the official Web address from the Vehicle Friends page or trial button on the main site. The full iOS App book is planned as a separate App Store purchase.

No. The current free Web trial opens directly without sign-in or payment. The planned full iOS App also does not require a Jiseikou Studio account.

Open Vehicle Friends from the Book library or select a free-trial button on the main site to start the trial on the official Web address.

The free Web trial includes selected reading and interactive content from Vehicle Friends without promising a fixed page count or time limit. After the iOS App is released, purchasing Vehicle Friends separately unlocks the full version of this book.

No. The Web trial is free, and each iOS App book is a separate one-time purchase rather than a monthly or annual subscription.

The iOS App release date has not been announced. A verified App Store link will be added to the main site after release. The free Web trial is available now.

The free Web trial does not require payment. After the iOS App is released, purchases will be handled by the Apple App Store, with no separate Jiseikou Studio payment account required.

The free Web trial does not require sign-in, and the iOS App does not require a Jiseikou Studio account. iOS purchases and re-downloads use the account and App Store services provided by Apple.

No. The free Web trial is a browser experience with selected content, while each iOS App book is a separate one-time purchase with no ads.

The free Web trial does not create a charge. Apple handles iOS App payments and refunds, so requests must be submitted through Apple’s purchase history and refund process. Jiseikou Studio cannot approve refunds on Apple’s behalf.

The free Web trial targets common phone, tablet, and desktop browsers, although some voice features vary by browser and device. Supported devices and minimum system requirements for the iOS App will be listed on its App Store page after release.

The free Web trial needs a connection when first opened and when loading some content. The full iOS App supports offline reading, although downloading the app, obtaining the book, and installing updates still require a connection.

The free Web trial can be opened again in a supported browser. Apple manages iOS App purchase history and re-downloads, so use the Apple Account that made the purchase and follow the App Store process.

Some audio in the free Web trial can be affected by the browser, device settings, and connection. The iOS App uses audio included in the app; if you hear no sound, first check the device volume and silent-mode settings.

For help with the free Web trial or the iOS App, visit the Contact page or email jiseikou83@gmail.com. For iOS purchase or refund issues, use Apple’s support and refund process.

State whether the problem occurred in the free Web trial or the iOS App, and include the device, operating system, browser or app version, steps, and an error image if useful. Hide personal details and do not send passwords, full payment-card information, or a child’s personal information.