iPhone, iPad and Mac apps
Halo designs and engineers focused iPhone, iPad and Mac experiences with privacy, accessibility, purchases, device behaviour and release evidence considered from the start.
Typical first release
A defined product slice with the core user flow, reliable state, appropriate on-device or cloud boundaries, test coverage and a realistic release path.
Not included automatically
Delivery path
The target flow works on the intended devices, key failure cases are handled and release claims match current product and store evidence.
Identify the user, current surface, constraint and outcome that matters.
Define what must work, what can wait and which risks need a boundary.
Design and implement the approved surface, workflow or product slice.
Check the real route, interaction or operational state before calling it complete.
Relevant live surfaces
These links demonstrate delivery breadth. They do not imply customer outcome metrics.
A money-decision product that turns spending into tax-aware work time, recurring-cost context and long-run value.
Built and operated by David Shelley
Proof type: Public product and App Store listing
Status: Live product website and current App Store listing
Evidence checked: 29 July 2026
Boundary: Public availability does not prove adoption, revenue or conversion.
Capability shown: Product strategy, app delivery and conversion website
Jobs, quotes and invoice support for UK tradespeople, with a dedicated product and support surface.
Built and operated by David Shelley
Proof type: Public product and App Store listing
Status: Live product website and current App Store listing
Evidence checked: 29 July 2026
Boundary: Public availability does not prove adoption or customer outcomes.
Capability shown: App engineering, documents and customer support routes
Capability questions
Start with the useful release and evidence standard; the tool choices come after.
A defined product slice with the core user flow, reliable state, appropriate on-device or cloud boundaries, test coverage and a realistic release path.
The target flow works on the intended devices, key failure cases are handled and release claims match current product and store evidence.
More brands, audiences, locations, integrations, sensitive data, live-account access, legacy migration, content volume and third-party approvals can all change the release plan and price.
Practical guides
Each guide explains a bounded first release, the evidence to retain and the outcomes no supplier can honestly guarantee.
Understand what changes a UK iOS app quote by defining the user job, product state, devices, data boundaries, testing and release path first.
Read guideReady when you are
Send an existing page or workflow for a free first look, or tell Halo what you want to create. You will get a specific next step, not a generic AI roadmap.