Custom Software Development

From a small script to a full business system: custom-built, source code delivered, transparent pricing. One full-stack developer — no layers of subcontracting, minimal communication overhead.

Consult now See pricing

Transparent starting prices per project

Websites / web tools

From ¥2,800
Turnaround: 1-2 weeks

Brand sites, landing pages, internal tools — high-performance delivery with Astro + Cloudflare

Mini-programs / automation scripts

From ¥2,000
Turnaround: 3-7 days

Data scraping, office automation, AI workflows; custom mini-programs usually from ¥5,000, quoted by feature

Enterprise custom systems

From ¥8,000
Turnaround: 2-6 weeks

Admin dashboards, business systems, API integration, including requirements analysis and architecture design

Optional add-ons

  • Rush (half the turnaround) +30%
  • Long-term maintenance & iteration From ¥500/month
  • Requirement changes / feature additions ¥200/hour
  • Source code + deployment docs Included
  • Launch deployment / domain setup Included

How we work

01

Discovery

A 15-minute call or chat to clarify your goals, budget, and timeline.

02

Proposal

A detailed plan, deliverables, and quote. Contract signed on approval.

03

Delivery

Milestone-driven progress with regular syncs to stay on track.

04

Support

Free fixes within 30 days of delivery; long-term maintenance available.

What you get

  • Complete source code and a private Git repository — yours after delivery
  • Deployment docs and operations notes — hand it off to yourself or another developer
  • A production-ready result: website, mini-program, script, or business system
  • 30 days of free fixes; long-term maintenance renewable monthly

FAQ

Can we work together without a technical background? ▼
Absolutely. I communicate in plain language — just describe what you want; tech stack, architecture, and implementation are on me.
How is the quote calculated? ▼
Estimated by feature points and workload. The starting price covers the simplest usable version. Once requirements are fixed, you get a fixed total price — no changes, no surcharge.
Who owns the source code? ▼
It’s all yours after delivery, including the private repository and deployment docs, with no lock-in to any follow-up service.
Is the delivery timeline guaranteed? ▼
Milestones and delivery dates are written into the contract. Delays caused by my side incur liability per the contract terms.
How do I pay, and can I get an invoice? ▼
Milestone-based installments (typically 3-4-3) via Afdian or corporate transfer; invoices available.

Have an idea? Let’s talk

Describe your needs — I’ll reply with a feasibility assessment and a preliminary quote within 24h.

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