Business05
WEB & APPDEVELOPMENTWeb & App Development
From planning through design and engineering to running it after launch. Web and app development, built as one continuous piece of work.

Plan
Decide what to make
Design
Draw the screens
Build
Ship it
Run
Keep it running
Web, apps, and what happens after
You can come to us before it is decided what to build. From working out what should exist through to changing it after launch, one team holds all of it.
- Web
Sites and campaigns
Corporate, brand, campaign. Designed around who updates it after launch, not only around how it looks.
- App / Tool
Apps and internal tools
From things fans use to things the company uses. Built on the assumption they get opened every day.
- Platform
Platforms and plumbing
Membership, data, delivery. Built so that features can be added later.

Four stages, and no big bang
We do not decide everything up front. Each stage decides only what the next one needs, and what comes out at the end of each is agreed before we start.
Plan
Deciding what to make
The goal, the audience, and what we are not doing. Drawing screens before that is settled is how a project gets built twice.
What comes outRequirement notes / how it will run
Design
Drawing it
Screens and flows, close enough to the real thing to be judged — including where the words and the pictures go.
What comes outScreen design / visual design
Build
Building it
Loading speed, how it behaves on a phone, and how it looks when someone shares it are part of the build rather than extras.
What comes outA service ready to launch
Run
Running it
Launch is the short part. Updates, measurement and changes stay with the people who built it.
What comes outAn arrangement for updates
In-house
We build our own first
This is not a division that only takes contract work. We build the services and the sites we use ourselves, and we run them ourselves. That is why we can design with what happens after launch already in view.
The site you are reading was built in-house too.
You do not need it specified
Before an estimate, a conversation about what should be built is enough. The less fixed the requirements are, the more we can put on the table.
Fine to leave open
- The shape of the budget
- A list of screens or features
- The technology
Helpful to have
- Why you want it
- Who it is for
- Roughly when
In the first conversation we work out the approach and the rough size together. The estimate comes after that.
The other four businesses
Re:AUTH has five businesses. Web and app development is one of them.
Pro Team Operations
Operating top-tier pro teams across major titles, maximizing competitive value at home and abroad.
Talent Management
A talent network across esports and streaming — our own signed talent and beyond it — with casting through to production briefs held in one line.
Content Production
Video and graphic production for YouTube and X — built on esports-native creative craft.
SNS Marketing & Branding
Official social accounts for companies, individuals and products — the world they live in, the operating support, and consulting from KPIs and goals.
Start withthe idea.
Enquiries before the requirements are fixed are welcome. The form opens in a new tab and is in Japanese. We reply within two business days, and the person who reads it runs the business.