You want to build an app or web service but are not sure what to decide first
Who this is for
You want to organize features, budget, and schedule before outsourcing
You want to turn spreadsheet-heavy work into a simple web tool
You want to review a workflow and automate it without overbuilding
You want to create a small MVP with Flutter, Android, or Web technologies
You want to try practical AI or API-based business improvement
Support areas
MVP planning and requirements support
We organize ideas and business problems into required features, priorities, screen structure, and development steps before implementation starts.
- Problem summary
- Feature list
- Priority table
- Screen roughs
- MVP scope
- Development roadmap
- Estimate draft
Mobile App Development
Design and implementation support for practical smartphone apps using Flutter, Android, and iOS.
- Flutter apps
- Android apps
- App Store / Google Play release support
- Firebase integration
- Notifications, widgets, and API integration
- Existing app improvement consultation
Web System / MVP Development
Small web apps, admin screens, business systems, APIs, and product sites built with maintainability and a small-start approach.
- Admin screens
- Small web apps
- API design and implementation
- Landing pages / product sites
- Simple membership or data management systems
- Lightweight Cloudflare / Firebase / AWS architecture
Business Automation Tools
We turn manual or spreadsheet-based operations into practical web tools and automation flows that are easy to keep using.
- Excel / Google Sheets workflow improvement
- CSV import/export
- Routine task automation
- Simple dashboards
- Notifications and reminders
- Small internal tools
AI-assisted Development
When useful, we use AI, APIs, and automation workflows to support practical business improvement. The goal is not AI itself, but a realistic fit for the actual task.
- AI use-case planning
- Simple RAG / chatbot PoC
- Text generation, classification, and summarization review
- API integration review
- AI-assisted development workflow
- AI adoption risk notes
AI answer accuracy, business improvement, or revenue outcomes are not guaranteed. We verify realistic usage based on purpose, data, and operation conditions.
Process
Inquiry
Share your current situation, purpose, budget range, and preferred timing.
Initial hearing
We organize users, workflow, required features, and constraints.
Direction and proposal
MVP scope, development direction, rough estimate, and process are organized.
Design and implementation
Screen design, system design, implementation, and testing are handled as needed.
Release and improvement
Release preparation and post-launch improvements are supported within the agreed scope.
Possible deliverables
- Problem summary
- Workflow
- Feature list
- MVP scope
- Screen roughs
- System architecture draft
- Development roadmap
- Rough estimate
- PoC plan
- Implementation code
- Post-release improvement ideas
Scope notes
NinjaSystem focuses on small apps, web services, and business automation tools. Large mission-critical systems, resident PMO work, 24/7 operation support, or areas requiring legal, medical, or financial professional judgment may be outside the support scope depending on the content.
Start with a small consultation.
You can consult even when the requirements are not fixed yet, such as early ideas, pre-outsourcing organization, or existing workflow improvement.
Consult