Validating a new product
You know the user and the problem, and need a usable release on a limited budget to test retention and willingness to pay.
05 Product Engineering
Apps, Mini Programs & Mini Games
One team from product definition to launch.
Custom development for iOS, Android, WeChat / Alipay / Douyin mini programs and mini games. Product, design, frontend, backend, QA and launch support in one team — for new products and for digitizing an existing business.
FIT
Who this is for
A good product is not a pile of features. We define the smallest complete loop, build it as production software, and iterate with real usage data after launch.
Digitizing an existing business
Bookings, membership, service delivery or field work still run on paper and spreadsheets.
Need a mini game or interactive experience
A brand activation, learning game or lightweight game needs a reliable build that can actually launch.
OUTCOMES
What you walk away with
Not a feature list — outcomes that enter the business, get measured and can be owned.
01
A clear product loop
Define the target user, core task, critical path and success metric before spending on peripheral features.
02
A launch-ready client
An app, mini program or mini game covering the core flow, edge cases, performance and compatibility.
03
An operable backend
Content, users, orders, data and permissions so the business team can operate without engineering.
04
A controlled launch
Store assets, privacy disclosures, permission list and test accounts prepared, with support through review and release.
DELIVERABLES
What is delivered
Exact scope is tailored per project. Every deliverable has a clear acceptance method.
Product requirements and scope
Interactive prototype and UI design
iOS / Android / mini program / mini game client
Backend API, database and admin console
Test report and launch checklist
Source code, deployment docs and handover
PROCESS
How we deliver
Every stage has a reviewable output, so the project never becomes a long black box.
01
Define
Clarify user, scenario, core task and business goal. Draw the smallest launchable scope and acceptance criteria.
02
Prototype
Validate the critical path with a clickable prototype. Lock information architecture, visual direction and stack.
03
Build
Ship a demo every two weeks. Test on real devices. Harden performance and error states as you go.
04
Launch
Prepare store assets, privacy compliance, test accounts and release checks. Launch, then iterate with real usage.
USE CASES
Where it shows up
These are typical entry points, not fixed templates. The real scope starts with your workflow.
Membership and booking
Booking, membership, payment and reminders for retail, fitness, education and service businesses.
Commerce and brand mini programs
Products, orders, distribution, support and content inside the WeChat ecosystem.
Lightweight mini games
Campaign games, brand interactions, learning challenges and training games with sharing and analytics.
Internal field apps
Inspections, approvals, field data capture and offline use, synchronized with back-office systems.
STACK
Tools and technology
Tools serve the use case. We stay technology-neutral and reuse your existing systems first.
React NativeFlutterSwiftKotlinTarouni-appCocos CreatorPhaserNode.jsGoCloudflareSupabase
FAQ
Common questions
Something else? Email us. We usually reply within one business day.
How long does an app or mini program take?
A well-scoped mini program usually takes 4–8 weeks. Projects with a complex backend, payments or multiple app platforms usually take 8–16 weeks. We provide a staged plan after scoping, not an unverifiable fixed estimate.
Can you guarantee app store approval?
No one can guarantee approval on any platform. We prepare privacy disclosures, permission purposes, test accounts and store assets against current rules, and help diagnose and fix rejections.
Who owns the source code?
Within the scope of the contract, custom source code and documentation are handed over to the client. Third-party open-source components and platform services remain subject to their own licenses and terms.
Should we build an app or a mini program first?
It depends on acquisition, frequency and required capabilities. High-frequency or offline-heavy use cases often justify an app; lightweight, share-driven use cases inside WeChat often start as a mini program. We recommend a path during definition.
RELATED
Related services
These capabilities are often combined with this service.
Start a concrete conversation
Is this use case worth building?
Thirty minutes to lay out the goal, workflow and constraints. We decide the next step together.