APP DEVELOPMENT — TOKYO

Building apps,
one at a time.

VirtualCross is a Tokyo-based development studio working on iOS and web apps — from the first idea through development and the years of operation that follow. We are small, which is exactly why we stay responsible for what we build.

01

Products

Planned, built and operated in-house

Stamp Rally Maker

DIGITAL STAMP RALLY — WEB

Build a digital stamp rally with QR codes, GPS check-ins and puzzle keywords — no app to install, everything runs in the browser. Made for shopping streets, tourism boards, events and school activities. Stamp artwork can be generated with AI, and your first rally is free.

VirtualRun

3D TREADMILL RUNNING — iOS

Turns treadmill time into a run with somewhere to go. Pick a route and run it as your avatar — and if you join the same room, you can run alongside someone on the other side of the world.

iOS App Store — coming soon Details Support

Next product

IN DEVELOPMENT

In development. We will announce it on this page.

Coming soon
02

Services

iOS app development

End to end: concept and design, implementation, App Store submission, and running the app after launch.

Web app & SaaS development

Small web services shaped around the actual problem, with authentication, payments and day-to-day operation built in.

Technical validation & prototyping

We start by finding out whether a new technology holds up in practice — with a prototype you can actually run.

03

Contact

Have an app in mind, or a project to hand over? Start here.

We use what you send only to reply to you, and never pass it to anyone else.

We read every message and reply within 2–3 business days. For a bug or a question about a specific app, the support page for that app is the fastest route. Inquiries in English and Japanese are both welcome.

OPERATOR
VirtualCross
ADDRESS
7F Nihonbashi Mizuno Bldg., 1-11-12 Nihonbashi-Muromachi, Chuo-ku, Tokyo 103-0022, Japan