DevRush

AI-era system development

Turn your business ideainto software, fastand without waste

  • From¥500,000
  • 1 monthto release
  • Spec changesFlexible
Business design & PoCMVP buildInfra setupAI feature integrationAI-driven organization

Struggling with the speed or cost of business development or AI adoption?We are running free consultations right now.

Contact us for a free consultation

Do any of these sound familiar?

  • Dev quotes are too high
  • Our AI-built app, is it safe to ship?
  • We must validate a new idea fast
  • We want to build in-house
  • AI adoption is stalling

Don't worry!

DevRushsolvesall of themfor you.

  • A product partner that builds faster and cheaper

  • From concept and PoC to AI adoption and in-house capability

  • A team of new-business development professionals

Subscription-based product development supportDevRush— what is it?

We support the development and operations needed for product releases and business validation, end to end.

YouRequestDeliverYour contact(Director)Our team
  • Business dev
  • PM
  • Designer
  • Engineer
  • AI engineer
  • Infrastructure

Built for business growth: continuous development and a repeatable release cycle.

Case studies

These are only a few examples. We can handle apps across a wide range of genres.

  • Employee benefits app

    A benefits app focused on ease of use

    Mobile app, Web app, API, Infrastructure, UX design, Product planning

  • Affiliate service

    A performance-based online advertising system with a storefront

    Frontend, Backend, Infrastructure, E-commerce

  • Facility matching service

    A matching service for research facilities

    Backend, Development management, UI/UX support

  • Growth support for a food e-commerce site

    An e-commerce system for regional specialties

    Conversion improvement, Marketing, Creative support

DevRushisdifferent from other contract developershere is how

We start from what to build, not just how

Other developers

A fixed spec gets built exactly as written. AI may make the building faster, but whether the result works for the business is never asked.

DevRush

Now that building is cheap, what you build is what makes the difference. We start from your business goal and narrow the scope to the features that truly matter, cutting the ones nobody uses and shipping in the shortest time.

Specs and priorities flex as the business changes

Other developers

Work follows the spec and estimate fixed up front, so a change of direction mid-project is hard to absorb. Every change means a new quote, and both cost and schedule grow.

DevRush

We watch how the release lands and what the validation shows, then rearrange what comes next. Feature proposals, design and development all move together with the phase your business is in.

The AI-assisted way of working goes to your team too

Other developers

AI stays inside the development company. Once the work is delivered no know-how is left with you, so every change means outsourcing again.

DevRush

Alongside design documents and code, we hand over how we work with AI and the team structure itself. We stay with you until your own team can keep developing at the same speed.

Struggling with the speed or costof new business or AI? We are running free consultations.

Contact us for a free consultation

How we get started

After hearing about your business and what you want built, we propose the fastest route to release.

  1. 1

    Get in touch

    Start by contacting us through this website.

  2. 2

    Meeting

    We listen to your business, what you want built and the problems you face, then propose how we can help.

  3. 3

    Application

    We sign the contract and set up the communication tools.

  4. 4

    Development starts

    At the kick-off we set monthly product goals and scope, agree a regular meeting schedule, and begin development.

1 business day to 1 monthFrom next week

Frequently asked questions

Q.Is quality still assured when you build with AI?
A.We use AI to speed up writing code and doing research, while the upstream design and the quality gates — review and testing — stay the responsibility of experienced engineers. Development gets faster, and quality reaches a higher standard than before.
Q.Can we talk to you about adopting generative AI on its own?
A.Of course. You can come to us even at the stage of "we are not sure where AI would help." Adding AI features to an existing system, a PoC for automating internal work — we start small and confirm the effect before going further.
Q.Can you just review or fix an app we built ourselves with AI tools?
A.Yes. We review apps built with generative AI or no-code tools before you launch or roll them out. Our engineers check security, how data is handled, maintainability and whether it will hold up as usage grows, then make the fixes it needs. If you have something that works but are not sure it is safe to ship, this is a good point to talk to us.
Q.Can you hand the project over to our in-house team once development is done?
A.Yes. Alongside design documents and source code, we support hiring and onboarding your own engineers and help you build a development organization that makes use of AI. The goal is for your team to be able to carry on by itself.
Q.Is there a fixed contract period?
A.The standard minimum is two months. A release within one month is also possible, so please get in touch to discuss the details.
Q.How do we communicate?
A.We work with whichever chat tool suits you — Chatwork, Slack, LINE and others.

INQUIRY

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