Accepting new projects

We turn business needs
into working software

z4x3 Studio · 5-person full-stack team · Business systems, platform software & AI · Start with a core demo, then go full scale

Business SystemsPlatform SoftwareAI AppsSaaSMini Programs
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What We Build

From internal management systems to customer-facing platforms and AI apps — one team from development to launch

Mini Programs

Mini Programs

WeChat / Alipay mini program development

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Mobile Apps

Mobile Apps

Cross-platform iOS & Android applications

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Websites

Websites

Corporate sites & responsive web apps

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SaaS

SaaS

Multi-tenant cloud software products

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Admin Dashboards

Admin Dashboards

Business management & data visualization

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DevOps

DevOps

Deployment, fixes & ongoing maintenance

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Why z4x3

More agile than big vendors, more reliable than freelancers

Full-Stack Delivery

Full-Stack Delivery

One team handles requirements, design, development, and ops — no coordination overhead

Small Team, Fast Pace

Small Team, Fast Pace

5 engineers, short communication lines, quick decisions — agile yet dependable

Built to Ship

Built to Ship

No fluff — every feature serves a business goal and works in production

Case Studies

Business systems, platform software & AI apps — click for details

SaaS

RapTrans

AI-powered listening training for language learners with cross-device sync and smart grading

SaaSAI SpeechMulti-Device
Online Training

Guojian Academy

Online course platform with purchasing, learning management, and full training workflows

LMSE-LearningPayments
WeChat Mini Program

Xianda Fresh

Community fresh-food pre-sales and group-leader delivery management

Mini ProgramCloud BasePayments
Admin Dashboard

Smart Warehouse Cloud

Multi-warehouse inventory and order dispatch for mid-size e-commerce

VueNode.jsPostgreSQL
Cross-Platform App

Yuejian Pro

Appointment booking, report access, and health records for a clinic chain

React NativeBackend APIHealth Records
SaaS

WorkOrder Pro

Repair ticketing and SLA tracking for property management and maintenance companies

Next.jsMulti-TenantWeChat Notify

AI Applications

Agents, workflows & RAG knowledge bases — helping teams adopt AI

AI Agent

Smart Support Agent

Support agent — auto-answers FAQs, detects intent, and escalates to humans

AI AgentLLMSupport Automation
AI Workflow

Contract Approval Workflow

Contract workflow — document parsing, risk detection, and approval routing in one flow

WorkflowDoc ParsingAutomation
RAG Knowledge Base

Internal Policy Knowledge Base

Policy knowledge base — natural language search for rules, processes, and guides

RAGVector SearchEnterprise KB

How We Work

Clear steps from first chat to production

01

Discovery

Email or WeChat to understand goals, scope, and timeline

02

Proof of Concept

Build a core demo first — if it fits, we proceed to the full project

03

Delivery

Milestone-based development with demos at key checkpoints

04

Launch & Support

Deploy to production and provide ongoing maintenance

About Us

z4x3 Studio is a 5-person full-stack team that turns business requirements into software that actually runs. From discovery to launch and support — one team, end to end.

Pricing based on scope, no hidden fees · Start with a core demo, then scale when ready

FAQ

Common questions about how we work, timelines, and pricing

How long does development usually take?
It depends on scope. A simple mini program or admin panel is often 4–8 weeks; mid-size SaaS or business systems 2–4 months; complex platforms or AI apps 3–6 months. We deliver in milestones with demos at key checkpoints.
How do you price projects?
We estimate by feature modules and complexity — transparent pricing with no hidden fees. After an initial chat, you get a proposal and range within 1–3 business days. Larger projects can start with a focused demo before full budgeting.
Can we start with a demo before committing?
Yes. We recommend building a core-feature demo first so you can validate direction and UX before scaling to the full project.
What tech stacks do you support?
Frontend: React, Vue, Next.js, mini programs. Backend: Node.js, Python. Databases: PostgreSQL, MySQL. AI: LLM, RAG, agents, and workflows. We pick stacks based on your needs and long-term maintainability.
Do you provide maintenance after launch?
Yes — bug fixes, small iterations, server ops, and monitoring can be covered monthly or per request after go-live.
How do we get started?
Reach out via WeChat or email with your idea. Once we understand goals and scope, we share a plan. After alignment, we work milestone by milestone through delivery.

Have a project in mind?

Email us or add us on WeChat. Describe your needs — we'll build a small working demo first, then you decide the next step.

Demo firstNo hidden feesFast response
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