Build a dedicated SaaS for your business with ¥0 initial cost. We combine the Common Development Platform (SDK) and AI Coding Agent to deliver high quality on a short timeline.

Build a dedicated SaaS for your business in as little as 2 weeks with ¥0 initial cost.
Try it free
No registration
Complete in about 10 minutes

Answer a few questions
to clarify your challenges

Contact us for a Fit Assessment

ZERO-SaaS is a service that uses a Common Development Platform (SDK) and AI Coding Agent to build a dedicated SaaS for your company from scratch with a ¥0 initial cost. The estimated development timeline is 2–6 weeks. We organize your challenges and goals through a Fit Assessment, then proceed step by step with the features you need first.

Do you have thesechallenges?

Existing SaaS may not fit your workflow, while the upfront cost of Contract Development can make adoption difficult.

Existing SaaS does not fit our business workflow

Customization is limited, creating gaps in day-to-day operations.

The high upfront cost of Contract Development makes internal approval difficult

It is hard to forecast payback, making it difficult to get started.

We have something to build, but requirements definition stalls us

Operations keep changing, so we cannot define everything perfectly from the start.

We want to start small

Validate with an MVP and add the features we need step by step.

An illustration of a person concerned about how to develop a SaaS

The hurdle to building is high, so we cannottake the step to adopt it...

ZERO-SaaS solves these challengesZERO-SaaS!

Start development with ¥0 initial cost!

Level out costs with monthly billing. Start small, confirm the impact, then expand once the payback outlook is clear.

Custom Development from Scratch!

We fit the system to your business process and support specialized requirements and API integrations with existing core systems and SaaS.

Add features gradually!

Start small and evolve every month as you see the impact. Release in priority order and keep improving through feedback from the field.

Build only the minimum features!

Even when requirements are fluid, we define the MVP from your KPIs. We implement only the essential flows that matter and deliver operational value early.

Balance cost and flexibility with a dedicated SaaS delivered quickly from a ¥0 initial cost. Launch with an MVP, level out risk through monthly billing, and improve the product step by step based on what you learn in operation.

Lower the hurdle to building,
start using it sooner and grow it!

ZERO-SaaS lets youstart small and grow with confidence.

Not a reused template.A Common Development Platform (SDK) and AI let us deliver quickly and reliably.

We build speed, repeatability, and safety into the process.

Common Development Platform(SDK)

We prepare common SaaS functions such as authentication, permissions, notifications, and logs in advance to streamline the journey from design to launch.

AI CodingAgent

It assists with requirements, implementation, testing, and documentation so development moves forward quickly and with less uncertainty.

Quality Gates

We standardize log checks, static analysis, dependency scanning, and OSS license checks to maintain quality you can rely on.

The path to operations
(estimated 2–6 weeks)

We plan the 6-step path from Fit Assessment to release within an estimated timeline of 2–6 weeks.

  1. 01

    Fit Assessment

    30–60 minutes

    Organize challenges and ROI hypotheses

  2. 02

    Requirements Finalization

    1–3 days

    Data model, interfaces, and wireframes

  3. 03

    Implementation and Testing

    1–3 weeks

    Rapid implementation with SDK + AI

  4. 04

    Staging

    A few days

    Validation and minor adjustments

  5. 05

    Release

    Internal rollout or public launch

  6. 06

    Operations and Expansion

    Add needed features based on project-specific quotes

The schedule may vary depending on the requirements and complexity.

Case Studies

Starting with ¥0 initial cost, the estimated development timeline is 2–6 weeks, and we have built 10 applications to date.

OSHITOKI
EventsFan EngagementSaaS

OSHITOKI

Connect every fan moment to the next experience

A fan engagement SaaS that connects fan experiences before, during, and after events through a single ID, helping organizers build lasting relationships with fans. It delivers 88 screens for five user groups, including the fan app, operations console, venue check-in terminal, sponsor portal, and platform administration, on one shared foundation.

View detailsarrow_forward
MANANOVIA
EducationStudy HabitsSaaS

MANANOVIA

See your effort. Build the strength to keep going.

A learning-habit platform that connects the start of study for middle and high school students with quick reflection and visible progress. Across 55 screens for students, guardians, educational organizations, and operators, it provides weekly reports, a private online study room, learning trend insights, and support for meetings.

View detailsarrow_forward
Maintenance KPI Management System
ManufacturingEquipment MaintenanceKPI

Maintenance KPI Management System

Connect maintenance from failure records to recurrence prevention

A system that records failures and stoppages in manufacturing equipment, normalizes inconsistent wording with an LLM, and connects maintenance KPI visibility with improvement-task tracking. It also retrieves stoppage events from PLCs, searches similar past cases, and supports access control and audit logs, connecting frontline records to recurrence prevention.

View detailsarrow_forward
Production Line Shift Management System
ManufacturingShift ManagementProduction Management

Production Line Shift Management System

Make line operations visible, from staffing to performance analysis

A web system for managing operating status, workers, shifts, and process-level rotations for each factory production line in one workflow. Alongside master data for employees, skills, machines, and products, it records, searches, and analyzes scrap counts and cycle times to support daily staffing and production visibility.

View detailsarrow_forward
WMS (Warehouse Management System)
ConstructionInventory ManagementPWA

WMS (Warehouse Management System)

Manage material movement to and from construction sites in real time

A warehouse management system for construction companies. It centralizes inventory, material dispatch requests, return-to-warehouse requests, delivery schedules, site storage, and reports, making material movement between sites and warehouses visible in real time. The PWA-enabled web app also works from smartphones.

View detailsarrow_forward
Business Card Capture CRM
CRMAISales Enablement

Business Card Capture CRM

Turn business-card photos into a growing customer database

A CRM app for sales teams. Take a photo of a business card and AI automatically extracts the person's name and company, then registers it as customer data. The PWA supports the full sales workflow, from contact, company, and deal management to email sending, map views, and QR business-card exchange.

View detailsarrow_forward

How pricing works

The initial cost is ¥0. Choose the Monthly Billing Model for internal-use apps or the Revenue Share Model for customer-facing or OEM products. We prioritize transparency and disclose the calculation formula for each estimate.

Initialdevelopment cost
0¥
Pay laterIndividual consultation

There is no upfront development fee. We prioritize getting started, then decide the exact format and pricing through a consultation.

Monthly Billing Model

For internal business-efficiency applications

Example: 1 account

¥1,000+

For internal useScales with usersMonthly

Business-efficiency applications used internally are provided through monthly billing based on the number of users.

Example: 30 users would be ¥30,000 per month

An app for internal use

Monthly Billing Model

Revenue Share Model

For monetized applications and OEM

A portion of sales is

set as the fee

For customer-facing or OEM productsJoint salesPartner model

When an application generates revenue from end customers, we work together through the Revenue Share Model. It is suited to building and jointly selling your own product through an OEM model.

A partner arrangement such as splitting sales can also work when a sales company jointly sells its own product

An app for customer-facing or OEM products

Revenue Share Model

Keep the initial cost low and start in a way that fits your business.
Talk with us about the details for each project.

Compare ZERO-SaaS with off-the-shelf SaaS and Contract Development

Frequently Asked Questions

Can development really move forward on a short timeline?

It depends on how clearly the requirements are defined, but combining our SDK and AI can shorten the time to the initial release. We first organize your goals and constraints through a Fit Assessment.

Can we consult you even if our requirements are not finalized?

Yes. We design the minimum viable structure through discovery questions and improve it in short cycles.

Which external services can you integrate with?

We have experience integrating major SaaS products for authentication, storage, chat, payments, analytics, and more. We confirm the details for each project during consultation.

What about security?

We apply standard measures such as permission design, encryption, dependency scanning, and static analysis. We can provide further details in our security documentation.

Is a ¥0 initial cost really possible?

Development can start with a ¥0 initial cost. The initial development fee is free, and the individual estimate is provided in writing before the contract. We also offer payment-after-start options, while monthly usage fees and other conditions are decided in consultation.

What pricing models are available?

We offer 2 pricing models: the Monthly Billing Model and the Revenue Share Model. Internal business-efficiency applications use the Monthly Billing Model based on the number of users, while customer-facing or OEM products use the Revenue Share Model, with a portion of sales set as the fee.

How long does development take?

The estimated development timeline is 2–6 weeks. It varies with the requirements and complexity, and we move through 6 steps: Fit Assessment, requirements finalization, implementation and testing, staging, release, and operations and expansion. Each step also varies by project.

When do payments occur?

Payment method and timing follow the method and due date in the contract. Our Legal Notice under the Act on Specified Commercial Transactions lists bank transfer and other options; confirm the specific due date for each project in the contract. Pricing and format are also decided in consultation.

Can we cancel after signing the contract?

Cancellation is possible before the contract is signed, but refunds and cancellation are not available after service delivery begins. Please confirm the service start point and cancellation conditions before signing.

Do you support operations and maintenance after launch?

We support operations and expansion after launch. Needed features can be added through individual estimates. The maintenance scope, response hours, pricing, contract period, and incident response conditions vary by project, so please consult us for details.

How is this different from off-the-shelf SaaS or typical Contract Development?

Unlike off-the-shelf SaaS or typical Contract Development, we can start from an MVP with a ¥0 initial cost. Off-the-shelf SaaS has limits to customization for your operations, while typical Contract Development often requires a large upfront cost.

What industries have you built for?

We have 10 public case studies. They cover e-commerce, sales and CRM, trading-card stores, real estate and interiors, construction, education, events and fan engagement, and manufacturing equipment maintenance and production management. We do not publish figures such as efficiency rates or the number of client companies.

What do you ask in a Fit Assessment?

We organize challenges, goals, constraints, and ROI hypotheses. The estimated time is 30–60 minutes; even when requirements are not finalized, we can design the minimum structure through discovery and move to requirements finalization.

Can we use the demo app for free?

You can try the demo app for free. No registration is required: answer a few questions and an app tailored to your work is generated automatically in about 3 minutes. It is a starting point for organizing ideas, internal proposals, and pricing discussions.

Which company handles development?

Ponotech Inc. handles development. Company information lists its founding in January 2023, Representative Director Yasuhiro Hayano, and its address as Mutsumi Bldg. 3F, 2-10-28 Kitasaiwai, Nishi-ku, Yokohama, Kanagawa 220-0004, Japan.

Will additional features cost extra if we need them during development?

Under the Revenue Share Model, we propose and support additional features that contribute to sales without an additional fee. As sales grow, our revenue grows too, so we can develop in the same direction. Feature additions under the Monthly Billing Model, or changes not directly tied to sales, are estimated individually according to the operations and expansion process.

Media Coverage

On Kanazawa Seaside FM's program “President! Tell Us About Your Company,” Representative Director Yasuhiro Hayano of Ponotech Inc. explained why ZERO-SaaS was created, including its ¥0 initial cost, payment after start through monthly billing or revenue share, AI-informed business decisions, development examples, and the company's vision.

Kanazawa Seaside FM

President! Tell Us About Your Company

Watch the broadcast on YouTube.

Read more about the broadcast

On the broadcast, Yasuhiro Hayano introduced Ponotech's ability to develop systems across a wide range of technologies, from hardware to software, as well as ZERO-SaaS, which develops applications with a ¥0 initial cost. His experience designing electrical systems for industrial machinery manufacturers and then working with software at an IT company gives him a view across both fields.

ZERO-SaaS grew from experience with Contract Development, where fixed specifications and budgets make it difficult to address issues that emerge during development and can exhaust both customers and development companies. We set the initial cost at ¥0 and offer payment after start through monthly billing per 1 account or revenue share based on a portion of the application's sales.

The broadcast also covered the decision to put future service models into practice early, anticipating AI's progress in application development. Examples included automating trading-card market research and pricing with AI, and developing a web application for tutoring schools that generates textbooks and questions based on each student's strengths and weaknesses.

With revenue share, where growing sales also benefit our business, we can propose improvements for business growth instead of negotiating each additional fee. Ponotech Inc. aims to work alongside customers as technology specialists and become the right hand of their business under the principle “Build together, grow together.”

With typical Contract Development, a proper application usually starts at around ¥5 million, which is expensive and difficult for many companies, especially small and medium-sized businesses, to take on.

Ponotech Inc. Representative Director Yasuhiro Hayano (Hayano's view of typical Contract Development)

AI is already reaching the stage where it can program applications, and I imagine a future where an application can be built by giving AI just a few instructions. If that develops, the typical Contract Development market may not be able to charge the same prices as before. We are already providing the kind of service that will unfold in that future.

Ponotech Inc. Representative Director Yasuhiro Hayano (A business decision anticipating AI's progress)

Build together, grow together

Ponotech Inc. Representative Director Yasuhiro Hayano (Ponotech Inc.'s vision)

Start in as little as 2 weeks with ¥0 initial cost for your dedicated SaaS!

Try a 3-minute demo appfor your dedicated SaaS.

Answer a few questions to automatically generate a demo app tailored to your business. Use it to organize ideas, make an internal proposal, or discuss the expected cost.

No registration!
Try it free!
Done in about 3 minutes!
Example dashboard screen for a generated SaaS demo app

Choose the option that fits your goal
and start with one of these 2 paths