Custom software costs in Hong Kong: scope and estimation checklist

Quote custom software against workflows and acceptance criteria. Screen count is only one input: roles, rules, integrations, migration, testing and operations also affect effort. Define the essential workflow first and separate optional features, third-party costs and maintenance. This guide provides an estimation method, not WeTech package prices or a market-average price list.

When to use this guide

For Hong Kong businesses planning internal systems, customer portals, administration tools, web apps or mobile apps where existing tools do not fit a core workflow.

Estimate by work package

Estimate by work package
Work package	Common omissions	Acceptance evidence
User workflows	Exceptions, returns, cancellation and duplicates	Steps and expected state transitions
Data and integrations	Cleaning, mapping, history and API limits	Reconciliation, exception list and retries
Permissions and quality	Roles, mobile use, accessibility and load	Role matrix, device and capacity tests
Launch and handover	Deployment, backup, training, accounts and support	Runbook, recovery exercise and handover list

Compare the same scope

List the essential tasks for each role, including normal and exception paths. An order workflow may require amendment, cancellation, approval and refund states, not simply a create-order screen. Ask for effort, assumptions, exclusions and dependencies by work package. Both fixed-scope and time-based engagements need change control, with the impact on cost and timing recorded before changes are approved.

Estimate total ownership cost

Estimate one-off cost from agreed effort and rates for each work package, plus external and migration costs. Separately list hosting, storage, email or messaging, licences, monitoring and support. Estimate normal and peak use. Identify unresolved conditions and the reasons for contingency. A single development total without operating assumptions makes it difficult to compare lifetime costs or plan an expansion.

Prepare an enquiry and phase the work

Provide a process map, role list, de-identified samples, existing tools, required integrations and the reason behind any deadline. A first phase should complete one end-to-end workflow rather than half of every module. For Hong Kong and cross-border operations, specify languages, currencies, time zones, data handling and support coverage. Confirm who can provide accounts and accept the delivered workflow.

Frequently asked questions

Does fewer screens always mean lower cost?

No. A single screen can involve complex permissions, synchronisation and business rules. Estimate the whole workflow.

Should the quotation include source code?

Specify ownership, deliverable scope, third-party licences and handover explicitly rather than assuming a default arrangement.

What costs remain after launch?

Hosting, licences, usage, monitoring, maintenance and enhancements may remain. Itemise them for the chosen solution.

Brand and public case scope

WeTech Consulting, also called WeTech or WeTech AI HK, provides AI and IT consulting in Hong Kong. WeProperty HK and WeCredit HK are self-developed products. Their cases support the observable features listed: property, estate and transaction-reference entry points for WeProperty; submission, review and public-data masking for WeCredit. WeCredit is not a TU credit-rating service or a final determination of facts.

WeProperty HK · WeCredit HK (case studies in Traditional Chinese)

Reference sources

Official documents support the technical, risk and measurement concepts. Checklists, estimation methods and illustrative scenarios are WeTech planning recommendations, not official prices or client results. Check the supplier’s current plan and terms. Sources reviewed: 2026-10-16 (GMT+8)

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