Spreadsheet limits
Version confusion, fragile formulas, access concerns, or processes that depend on one person.
Custom SaaS
Build the application that fits the work.
When spreadsheets are fragile and packaged software misses the workflow, we design a focused internal application with only the necessary functions. AI helps us streamline design and implementation so smaller companies can start with one process.
When it fits
A focused application can be the missing layer.
Packaged SaaS mismatch
The team pays for broad features but still cannot follow the actual operating flow.
Too many handoffs
The same information is copied between forms, sheets, chat, and accounting tools.
Need for ownership
The company needs a clear data model, workflow history, and handover path.
Approach
Start with one workflow, not a company-wide rebuild.
Map
Clarify the current process, users, inputs, decisions, outputs, and exceptions.
Design
Choose the smallest useful screen, data model, roles, and integrations.
Build
Implement in short review cycles with working demonstrations.
Operate
Handover, observe use, fix issues, and decide whether an adjacent workflow should be added.
Plans
Two scopes for different levels of workflow complexity.
Prices include Japanese consumption tax. Final price and schedule depend on requirements and integrations.
Starter
¥500,000+ setup
A focused internal application for one core workflow.
- From approximately 3 weeks
- Up to 10 screens as a planning guide
- Basic roles and data operation
- Maintenance from ¥30,000/month
Standard
¥900,000+ setup
A connected application with external services, approvals, and permissions.
- From approximately 6 weeks
- Multiple workflows
- External service integration
- Maintenance from ¥50,000/month
Business Systems
Custom scope
For cross-department processes, ERP, data migration, and wider system integration.
- Workflow and system architecture
- ERP and SaaS selection
- API and data integration
- Phased implementation
Ownership and handover
Avoid another tool your team cannot leave.
Customer data ownership
Business data handled by the application belongs to the customer.
Handover on cancellation
Deliverables and data are handed over under the agreed contract and export method.
Maintainable scope
We document the system and avoid unnecessary complexity that makes future change harder.
FAQ
Common questions
Is Custom SaaS always better than an existing product?
No. If an existing product or a small integration is sufficient, that is usually the better recommendation.
Are the listed schedules guaranteed?
No. They are planning guides for standard scopes. Requirements, feedback timing, security review, integrations, and migration affect delivery.
Can AI make decisions automatically inside the app?
We design AI to organize, suggest, compare, and draft. Important actions remain subject to human review and approval.
Show us the workflow that does not fit your tools.
We will compare an existing product, automation, a focused application, and wider system integration before recommending a build.