Mobile App Development
Mobile app development covers iOS and Android applications, built cross-platform where that is appropriate and natively where performance or platform integration demands it. We build the application, handle store submission, and are honest that launch is the beginning of the work rather than the end of it.
The problem
What happens once it leaves the office
It works in the building and fails in the field
The people who need it are in a warehouse, a basement, a vehicle, or a customer's site with one bar of signal. The app was tested on office wifi, so what it does when the connection drops mid-task was never really decided — and the answer turns out to be losing the work.
Nobody owns it after launch
The build was budgeted; the years after it were not. Then an OS release changes a permission model, a store policy shifts, and a device nobody tested on becomes common. Each is small. Together they are a standing commitment that has no name in the budget and no engineer assigned to it.
Getting it installed is its own project
The app is finished and adoption is the problem. Every user has to find it, install it, sign in, and grant permissions before they get any value at all — and each of those steps loses people. Nobody costed that when the app was approved.
What a real fix takes
The first honest question is whether it needs to be an app at all, and the answer is no more often than anyone selling app development would like to admit — the install barrier is real, and a good mobile web experience reaches everyone who would have bounced at the store page. Where an app genuinely is the answer, the thing that separates one people keep from one they delete is usually not features: it is what happens when the network is bad. Offline behaviour is an architectural decision made at the start and effectively impossible to add later, because it changes how data is stored, synced, and reconciled when two versions of the truth meet. The other thing to say plainly is that the build is the smaller half of the cost. An app is a permanent maintenance commitment, and a quote that covers only the build is describing part of the number.
Outcomes
What changes
One codebase where it makes sense
Cross-platform delivers most business applications on both platforms at substantially lower cost than two native builds.
Native where it is warranted
Heavy graphics, deep hardware integration or demanding performance requirements justify native, and we will say when yours do rather than defaulting either way.
Offline capability designed in
, because mobile connectivity is unreliable and applications that assume otherwise fail in exactly the conditions they were bought for.
A realistic view of the ongoing cost
OS updates, store policy changes and device fragmentation are continuous. We scope maintenance explicitly so it is budgeted rather than discovered.
What we build
What we build
Customer-facing applications, internal and field-operations tools, applications extending an existing platform, and offline-first apps for environments with poor connectivity.
The work that decides whether it survives contact with real use is mostly invisible in a demo: sync and conflict resolution for when the same record was edited in two places, a permission flow that asks for camera or location at the moment the user understands why rather than on first launch, crash and error reporting wired up before release rather than after the first bad review, and an update path that does not strand people on an old version indefinitely.
What you receive
What you receive
The applications themselves, live on the App Store and Google Play, plus the repository containing the app source and any backend we built, and the build and release configuration needed to ship an update.
Publishing works either way, and it is a decision worth making deliberately rather than by default. Most clients prefer to hold their own store developer accounts, so the listings, signing keys and the relationship with each store sit with them from the beginning — which is the cleaner position if you ever change who maintains the app. Where you would rather not take that on, we can publish and manage it under ours. We will walk through the trade-off during scoping instead of assuming one.
Either way we handle submission and the review correspondence, and design against the common rejection causes rather than meeting them at submission.
How it works
How it works
Discovery and the platform decision
What the app must do, who uses it, in what conditions — and whether it should be an app, cross-platform or native. This decision is made once and is expensive to revisit.
Design and prototype
, tested on a real device rather than reviewed on a monitor.
Build in increments
, with test builds distributed through TestFlight and Play internal testing throughout, so you are using it on your own phone during the build rather than at the end.
Field testing under real conditions
Poor signal, no signal, backgrounding, interruptions, older devices.
Store submission and launch
, including the review process, which takes longer than people expect and cannot be reliably rushed.
Typical first release is twelve to twenty weeks, plus store review. The phase that surprises clients is field testing, because the app that behaves perfectly in the office meets a lift, a basement and a two-year-old handset, and each of those produces a different class of problem.
Technology
What we work with
Technologies we work with, chosen against what the app has to do rather than by default. Not an exclusive stack.
Cross-platform: React Native or Flutter, which suit most business applications.
Native: Swift and Kotlin, where graphics, hardware integration or performance genuinely require them.
Backend: Node or Python, or integration with services you already run rather than a new one alongside them.
Distribution and testing: TestFlight and Play internal testing during the build, with crash and error reporting in place before the first release.
Where this applies
Where this applies
Strongest where the use case genuinely needs the device — camera, location, offline operation, push notification — or where usage is frequent enough to earn a place on someone's home screen. Common in logistics and supply chain and manufacturing, where the work happens away from a desk and often away from a reliable connection, and in healthcare for point-of-care tools.
Weakest where a responsive web application would serve. Persuading someone to install an app is a substantial barrier, and many products that built one did not need to.
Why us
One team, not three vendors
The usual way
- A strategy consultant, a development shop and a marketing agency, each scoped separately.
- Months spent getting three vendors to agree, and blame to allocate when something breaks.
- The model ships and adoption becomes somebody else's problem.
With Nexiour
- One team across strategy, engineering and growth. You skip the coordination tax entirely.
- We own the whole outcome — from the first audit to the system that is running.
- Delivery across the UK, UAE, Germany and India, with overlapping hours in four markets.
What it costs
How we scope and price
Fixed scope and price per phase, quoted after discovery. Four things drive it: feature scope, whether native is required, backend complexity, and offline requirements — the last being the one most likely to change the architecture and therefore the estimate.
Ongoing maintenance is scoped separately and should be budgeted from the start rather than treated as optional. It is not optional; it is only unbudgeted.
FAQ
Frequently asked questions
Build an app when you need device capabilities, offline operation, or genuinely repeated use. Otherwise a good mobile web experience reaches more people at lower cost and with no install barrier. We ask this before scoping, and sometimes the answer ends the conversation.
When your users would open it a few times a year — the install cost exceeds the value and it will be deleted. When the same job is done well by a mobile site. When there is no budget line for the years after launch, because an unmaintained app degrades visibly and publicly. And when the app exists mainly because competitors have one.
Cross-platform for most business applications; the performance difference is not meaningful for typical use cases and the cost difference is significant. Native for graphics-intensive, hardware-dependent or performance-critical products.
Twelve to twenty weeks for a first release, plus store review time.
We handle submission and the review process. Rejections happen and are usually resolvable within days. We design against the common causes rather than meeting them at submission.
It is ongoing and unavoidable — OS releases, store policy changes, device support, security updates. We scope it explicitly so it appears in the budget rather than in month four as a surprise.
Yes, with local storage and sync designed in from the start. It is an architectural decision, not a feature added later, and retrofitting it is close to a rewrite.
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