Terms of Use

Updated October 14, 2026

About the app

City Interchange lets you explore included road interchanges and create your own road designs. These terms apply to the app and this website. The iPhone release is currently being prepared; the website does not promise availability on a particular date.

For learning and creative exploration

The app is a visual learning and creation tool. Its models, dimensions, connections and traffic views are not certified engineering calculations, traffic forecasts, construction drawings or navigation instructions. Do not use them to make road construction, safety or real-world routing decisions.

Your designs and local storage

You remain responsible for the content you create. The current editor saves one active design on your device; it does not offer a multi-project library or cloud synchronization. Device loss, deletion, software changes or storage issues can cause data loss. Do not rely on the app as the only record of important work.

Use with care

Do not use the app or website to violate laws, infringe another person’s rights or interfere with their operation. You may use the tools for your own learning and creative work. This does not transfer ownership of the app, its included model collection or other protected assets.

Availability and limitations

Features and supported devices may change. We aim to keep the app useful and reliable, but do not guarantee uninterrupted operation or that every design will be suitable for a particular purpose. Your applicable consumer rights are not excluded by these terms.

Third-party services

The App Store and Apple’s system services are governed by their own terms. Any future pricing or purchase conditions will be shown where a purchase is offered; this website does not currently offer a purchase.