Services / Product Engineering
iOS and Android apps designed around brief sessions, interruptions and unreliable connectivity. We build the experience, the offline behaviour, the integrations and the store release — and hand over something your team can operate.
Offline-first engineering. Real devices. No install guarantees.
The business case
Mobile succeeds when it removes friction from a specific, repeated task. That depends on designing for context — where the user is, what they hold and what the network is doing — not on porting a website into a shell.
The task happens away from a desk, needs device capabilities the browser cannot offer well, or must work when connectivity does not. We also say when a responsive web application is the better first step.
Platform and store constraints, the maintenance cost of two platforms, and the difference between a native capability and a nice-to-have. These shape the scope before anything is built.
Apps we build
The right scope depends on your users, their context and risk. These are example situations, not pre-packaged promises or claims about past results.
Put the core service in people's pockets: booking, ordering, account management or support, with the shortest path to the task they actually repeat.
Learn: can users complete their task on a phone without falling back to support channels?
Equip teams who work away from a desk: inspections, deliveries, maintenance or sales visits, with data capture that works when connectivity does not.
Learn: does field data arrive complete, on time and without double entry?
Extend a web platform with the features that matter on mobile: notifications, approvals, quick actions and offline access to recent work.
Learn: does the companion increase engagement without fragmenting the experience?
Give staff one tool for shifts, tasks, requests and communication, with permissions that reflect how the organisation is structured.
Learn: does adoption reduce coordination overhead measurably?
Add AI where it fits mobile use: capturing and structuring information from the camera, answering questions on the go or drafting responses — with validation and human review for consequential actions.
Learn: is the AI feature reliable and fast enough on representative devices and inputs?
Build for what the browser cannot do well: camera, sensors, background location, secure storage or deep system integration, within the platform rules users and stores expect.
Learn: does the native capability demonstrably improve the core task?
How the app works
The app captures data at the point of work, syncs with your backend when connectivity allows, and reaches users through a properly prepared store release.
Offline handling, designed permission flows, server-enforced authorisation, error and recovery states, and crash monitoring. These are foundations, not upgrades to negotiate later.
Features that only make sense on a desktop, background work that bends platform policy, and speculative capabilities for audiences you do not have yet. Deferred work stays visible with a reason to revisit it.
Scoping the app
Mobile succeeds when it is designed around context: brief sessions, one hand, interruptions and unreliable connectivity. We start from the tasks, not a feature checklist ported from the web.
Map where and when each task happens: on site, between meetings, on a train. Features that only make sense at a desk stay on the web.
Agree iOS, Android or both, and whether cross-platform or native code suits the team, budget and device requirements. The choice is made against evidence, not habit.
Name store review requirements, device support, OS versions and any enterprise distribution early. These constraints shape architecture, not just packaging.
Identify the systems the app reads and writes, who owns credentials and what happens when a dependency is slow or unavailable.
Experience & interface design
Mobile users abandon clumsy interfaces faster than any other platform. We design around thumb reach, interruption and recovery.
Follow the interaction patterns of each platform so the app feels at home: navigation, gestures, system controls and accessibility settings are respected, not reinvented.
Offline, loading, permission prompts, sync conflicts and errors are designed as part of the experience. A confusing permission request costs more users than a missing feature.
Dynamic type, screen-reader support, contrast and touch target sizes are built in. Formal accessibility conformance requires a separately agreed assessment.
Permissions, accounts and first tasks are sequenced so users see value before being asked for anything. Onboarding analytics are defined before launch.
Engineering foundations
Mobile code outlives many web projects. We build on maintainable foundations with explicit boundaries, so the second year of development is cheaper than the first.
Local storage, queueing and conflict resolution designed before the first screen is built. Apps that assume perfect connectivity fail in exactly the moments they matter.
Every server interaction has an explicit, versioned contract. API changes are handled with backward compatibility, not silent breakage in the field.
Secure storage for credentials and sensitive data, certificate handling, jailbreak/root sensitivity where it matters and server-side authorisation for every action. The device is not a trusted environment.
Business logic separated from UI, automated tests on rules and sync behaviour, and repeatable builds. Manual-only testing does not survive a real release cadence.
Device capabilities & AI
Mobile devices are sensors first. We integrate camera, location, notifications and on-device or cloud AI where they serve the core task, with clear boundaries.
Every permission request maps to a feature the user has chosen to use. Permission rationales are explained in context, not demanded at first launch.
Push notifications, background sync and location updates follow platform rules. Work that quietly drains battery or bends platform policy puts the app at risk.
On-device or cloud models can structure photos, transcribe speech or draft text at the moment of capture. Outputs are validated before anything is committed to a system of record.
Model calls are measured on representative devices and networks, with a defined path when the model is slow, unavailable or wrong. A manual flow beats an unreliable smart one.
Release & app stores
App store publication has its own rules, timelines and failure modes. We treat submission as part of delivery, not an afterthought.
Screenshots, descriptions, privacy declarations, data-safety forms and account requirements prepared against current store policies. Policy answers reflect what the app actually does.
Internal and external testing tracks, staged release and monitoring of crash-free rates before full availability. Rollback plans exist before release, not after.
Developer accounts, signing keys and credentials managed accessibly, with no dependence on one person's laptop.
A strategy for API compatibility, minimum supported versions and graceful messaging when an old client must update.
Operations after launch
Release is the start of the operational lifecycle: crash reports, OS updates, store reviews and user feedback all need an owner and a process.
Structured crash reporting, performance signals and release comparisons, with sensitive data redacted and access controlled.
Regular, small releases with automated build pipelines beat large, risky updates. The cadence is agreed with whoever will run it.
Support channels, in-app feedback and store reviews routed to the people who can act on them, with agreed triage rather than silent accumulation.
New OS versions, device sizes and store policy changes are planned for, not reacted to. Each platform change is scoped and scheduled.
Technology & frameworks
We work with your existing environment where it is sound, or select a maintainable stack for the build. These are options, not a requirement to use every technology on the list.
Platform-native designs tested on real devices with representative users where available.
One codebase for both platforms when device needs allow it. Native modules are added where a capability demands them.
Used where performance, platform depth or enterprise requirements justify separate codebases.
Typed, versioned contracts designed for mobile constraints: intermittent networks, retries and idempotent writes.
Offline-first local storage with explicit sync and conflict rules, backed by server-side data ownership.
Proven identity flows with server-enforced authorisation; device-side storage treated as untrusted.
Push infrastructure with topic and preference management, aligned to platform policies and consent rules.
Chosen against task evidence, device constraints and data-handling requirements, with validation before commit.
Unit tests on business logic and sync, end-to-end tests on real devices or emulators, and API contract tests.
Repeatable signed builds, staged releases, crash reporting and telemetry with redacted diagnostics.
Provider and platform selection depends on device requirements, licensing, approved data processing, availability and operational needs. We prefer fewer moving parts over an architecture your team cannot comfortably run.
Delivery approach
You work with engineers inside the delivery process, supported by the wider team. Reviews, device demonstrations and scope decisions stay connected to the agreed goal.
Define users, core tasks, platforms and constraints, including store requirements and integrations. Surface dependencies before committing to scope.
Output: Scope brief, platform decision and dependency list.
Prototype the core flows on real devices and prove the riskiest integrations, offline behaviour and AI features early. Agree architecture and a prioritised backlog.
Output: Device-tested prototype, technical plan and delivery estimate.
Implement the app in reviewable slices, with regular demonstrations on real devices. Offline behaviour, permissions and integrations land with the features that need them.
Output: Working increments installed on test devices.
Test critical journeys, sync and recovery paths on target devices, prepare store assets and run staged release with monitoring. The product owner makes the release decision with the evidence in hand.
Output: Release candidate, test evidence, store submission and operating notes.
Transfer code, signing setup, pipelines, documentation and monitoring with a walkthrough for the team who will run it. Agree the release cadence and next steps based on observed usage.
Output: Handover package, release process and a prioritised backlog.
A decision-maker, users we can test with, system owners for the integrations and access to developer accounts. For sensitive data, bring security, privacy and compliance stakeholders into scoping early.
We show working builds on real devices, keep constraints visible and document tradeoffs. Acceptance and release decisions have named owners; a deadline does not turn an unresolved risk into an acceptable one.
Handover & ownership
Your code belongs to you from day one. The handover covers not just the code but the release pipeline, monitoring and the operating rhythm the app needs.
The agreed flows, integrations and device capabilities, tested on target devices, with acceptance criteria met and limitations documented.
Source code, configuration, tests, signing setup and automated build pipelines in your repositories. Third-party components remain subject to their licences.
Store listings and declarations, crash and performance monitoring, release runbooks and recovery procedures.
A prioritised backlog grounded in observed usage, crash data and feedback rather than speculative features.
Delivery does not include unlimited maintenance or a service-level commitment. We can agree ongoing development and operational support, or hand over fully to your own team.
Related engineering services
Mobile application development focuses on apps that carry real work. Product launches, web platforms and dedicated capacity can support what comes next.
Questions before starting
It depends on device capabilities, performance needs, team skills and budget. Cross-platform frameworks like React Native or Flutter serve most business apps well; native code earns its place for deep platform integration, demanding performance or specific enterprise requirements. We assess your case and explain the tradeoff before committing.
Yes. With a cross-platform codebase both platforms are delivered together; with native codebases we sequence the work and keep the experiences consistent. The approach is agreed during scoping based on your requirements.
Offline behaviour is designed as a first-class requirement: local storage, queueing of writes and explicit conflict rules. We test on real networks and interruptions, not just a strong office connection.
Store review requirements shape the plan from the start: privacy declarations, account requirements, permission rationales and policy-sensitive features are handled deliberately. We cannot guarantee review outcomes, but we prepare submissions properly and plan for the review timeline.
Yes, where they earn their place. We evaluate the task on representative devices, keep model access within the app's permission model, validate outputs and keep consequential decisions with the user. Cost, latency and fallback behaviour are measured, not assumed.
It depends on the platforms, device capabilities, integrations, store requirements and decision turnaround on your side. We estimate after reviewing scope and dependencies. A paid two-week first sprint can deliver a tested, working slice; it is not a promise to finish the whole app in two weeks.
Your code belongs to you from day one. Developer accounts, signing keys, stores and vendor accounts are set up under your ownership with agreed access. Handover includes documentation and a walkthrough, with third-party licences respected.
We hand over monitoring, release pipelines and operating materials, and review initial usage evidence together. Further development, maintenance and incident support are separately agreed — you can continue with us or run it with your own team.
Start with the task
Tell us who uses the app, where they use it and what it must do. We'll agree a practical first sprint.