[GO eSIM] Entire Development Process Created with AI. eSIM for Japanese Overseas Travelers Now Available in 160 Countries Worldwide

Nomad Works Inc. (Headquarters: Ginza, Chuo-ku, Tokyo; Representative Director: Kyohei Mochizuki) has launched "GO eSIM," a data communication eSIM service for Japanese individuals traveling abroad, available in 160 countries worldwide.

The most significant feature of this service is that almost the entire development process, from planning and design to development and operation, was built in-house utilizing generative AI (Anthropic's Claude).

From the website users interact with, to the payment system, the operational infrastructure for integrated management of sales and accounting, and even 24/7 Japanese support, the entire system supporting the service was created by a small team leveraging AI. No membership registration is required. Simply scan the QR code received after purchase to immediately start using data communication in your travel destinations, including Japan.

Check the GO eSIM Official Website

Key Points of This Release

Almost the entire development process built in-house with generative AI (Claude) - from planning, specification design, front-end/back-end development, to the administration screen.

Supports 160 countries worldwide (Asia, Europe, North America, Central and South America, Africa, Oceania).

Two systems, "Unlimited Plan" and "Data Plan," are available for all supported countries.

No membership registration required, usable immediately after purchase.

Simple setup by just scanning a QR code.

Affordable price starting from \u00a5500/day (Taiwan, Unlimited Plan).

24/7 AI support available.

Launch Commemoration: First-time 10% OFF coupon distributed (until August 31, 2026).

"How far can services be built with AI?" - Almost the entire development process built in-house with generative AI.

"GO eSIM" began as a project to answer the question of whether a service can be fully built by a small team using AI.

Traditionally, launching a web service required significant personnel and time for each stage, including requirements definition, design, front-end development, back-end development, payment integration, and administration screen construction.

With GO eSIM, the majority of these processes were internalized through collaboration with generative AI (Anthropic's Claude). The entire system supporting the service, from the user-facing website to the operational dashboard for integrated management of sales, orders, and accounting, was built with this setup, significantly optimizing development speed and cost.

AI utilization is not limited to development. AI is also incorporated into user support, enabling 24-hour Japanese chat support (details below).

"Your Usual Smartphone, Even Abroad." - eSIM for Japanese Overseas Travelers.

"GO eSIM" is a data-only eSIM service designed for Japanese users traveling abroad.

It eliminates the hassle of renting and carrying Wi-Fi routers or searching for local SIM cards every time you travel abroad, providing an experience where you can use your usual smartphone overseas.

For eSIM-compatible devices, there's no need to swap physical SIM cards. Purchase before departure and scan the QR code, and upon arrival, you can start communicating simply by turning on data roaming.

<Usage Flow>

Purchase an eSIM plan on the official website.

Receive a QR code at your registered email address.

Scan the QR code with your device.

Turn on data roaming at your destination and start using.

After use, there is no need to return or discard the SIM card.

Supports 160 Countries Worldwide / Two Plan Types

"GO eSIM" supports 160 countries worldwide, covering Asia, Europe, North America, Central and South America, Africa, and Oceania.

In addition to plans usable in a single country, "Touring Plans" that can be used across multiple countries are also available, allowing for flexible selection based on your travel destination.

For all supported countries, we offer two systems: the "Unlimited Plan" for worry-free data usage and the "Data Plan" where you can choose the required capacity.

You can choose according to your needs, from short-term trips to long-term stays.

Pricing Examples

Korea Unlimited, \u00a5700/day (tax included)

Taiwan Unlimited, \u00a5500/day (tax-exempt)

Korea Unlimited, \u00a5700/day (tax-exempt)

Thailand Unlimited, \u00a5800/day (tax-exempt)

Korea Data 3GB, \u00a51,500 for 30 days (tax-exempt)

Taiwan Data 5GB, \u00a52,000 for 30 days (tax-exempt)

*Usage abroad is tax-exempt.

*Prices may vary due to exchange rates.

*The above are examples. Please check the official website for the latest supported countries and pricing.

24/7 AI Japanese Support That Doesn't Worry About Time Differences

A common problem when encountering issues while staying abroad is being outside of "business hours" due to time differences.

"GO eSIM" provides 24-hour Japanese chat support utilizing AI.

You can consult in Japanese anytime, whether it's late at night or early in the morning, regarding setup methods or questions during use.

The support system itself is also built with AI (Claude), practicing service operation that is created by AI and supported by AI.

Launch Commemoration: First-time 33% OFF Campaign!

To commemorate the start of service provision, we are distributing a 33% OFF coupon that can be used on your first purchase.

Coupon Code: goesimre33

Expiration Date: July 31, 2026

Target: All first-time customers

Recommended For:

Those traveling abroad, on business trips abroad, or studying abroad.

Those who want to eliminate the hassle of renting Wi-Fi routers or searching for local SIMs.

Those who want to use data communication comfortably overseas.

eSIM Compatible Devices

Usable with eSIM-compatible iPhone/iPad/Android devices.

Please check the official website for details.

Official Website: https://go-esim.net

Representative's Comment

The advent of generative AI has dramatically changed the norms of service development.

GO eSIM is a service created through collaboration with AI, from planning and development to daily operations.

Even a small team can deliver services with quality and speed comparable to major companies by mastering AI.

We will nurture GO eSIM as a prime example of this.

We aim for a world where "Your Usual Smartphone, Even Abroad" becomes a given for all Japanese people going abroad.

<Company Profile>

Company Name: Nomad Works Inc.

Location: Ginza Ishii Building 4F, 6-14-8 Ginza, Chuo-ku, Tokyo

Representative: Kyohei Mochizuki

Established: May 2019

Business Activities: Provision of communication services (Nomad WiFi / Nomad SIM / GO eSIM)

URL: https://nomad.inc/