App development · Harrow
App development in Harrow
Apps that work in the real world. We build mobile tools for Harrow's independent traders, wholesalers and service businesses—from scoping to launch to ongoing support. Apps people actually open and use.
App development for Harrow businesses
Hubb Group is a digital agency and software company. Our studio is in Dubai and we work with UK clients remotely, on UK hours, with a named lead on every project. Contracts and invoices are issued by our UAE company, in pounds.
We track what matters: app store ratings and reviews, daily active users, feature usage patterns, crash rates, and approval turnaround. We measure maintenance through uptime, update frequency, and bug resolution time. For transaction apps, we track payment success rates and revenue impact. No guesswork—clear metrics you can see.
Every project is a fixed quote with a clear timeline and clear milestones. You own the work and the accounts outright when we're done — no lock-in, and nothing you can't take with you.
Sectors we work with in Harrow
- Independent retailers and wholesale traders
- Delivery and logistics services
- Hospitality and food service
- Tradecraft and specialist services
- Estate agents and property management
- Health and beauty practitioners
Everything we deliver includes
Scoped to ship
A first version people will actually open, priced before the build starts.
Store review handled
App Store and Play requirements — privacy, account deletion, demo logins — dealt with.
Works on a bad connection
Offline behaviour and accessibility treated as requirements, not polish.
Fixed prices
A clear quote and timeline up front — no open-ended retainers, no surprises.
A named lead
One person who knows the build, on UK hours, not a ticket queue.
Yours to own
Code, signing keys and store listings in your name.
Why a business app fails in the first month
Most apps die because they try to do too much. A bloated feature set means slow releases, App Store rejection, and users uninstalling after three opens. We start with ruthless scoping: what does your Harrow customer need to do, today, in thirty seconds? Everything else waits. That discipline gets you live faster and keeps approval smooth.
The apps that survive are the ones with a clear job. A delivery wholesaler needs route planning and invoice capture. A service business needs appointment booking and payment. A retailer needs stock visibility and staff scheduling. We build exactly that—nothing fancier. Maintenance and small updates cost less when the app does one thing well.
Offline-first design for traders on the move
Harrow's traders don't sit at desks. You're on the road, in warehouses, on the high street. Network coverage drops. You need your app to work anyway—recording data, making decisions, processing transactions—then syncing when you're back online. That needs a different kind of build, not just a mobile website wrapped in an app shell.
We design apps that cache what matters and handle intermittent connectivity. Your staff can log jobs, update inventory, and confirm orders without waiting for signal. Data syncs reliably when the connection returns. That's the difference between an app that fits your working day and one that frustrates your team.
App Store and Play review: we handle the red tape
Apple and Google have rules. Miss them and your app gets rejected—days wasted, revenue delayed. We know what both stores actually check: privacy policies, permission justifications, payment handling, accessibility standards. We build apps that pass review first time, not ones that need three resubmissions and guesswork.
We also document everything for you. Accessibility compliance. Data handling. How payments work. When we hand the app over, you'll know exactly what's built in and why. If something breaks later, the next developer won't start from scratch.
Maintenance beats abandonment
An app isn't finished at launch. iOS and Android release updates. Phone hardware changes. Third-party services shut down or update their APIs. Bugs surface once real users are on it. We build a maintenance plan into every app: regular security checks, compatibility updates, small feature tweaks, and priority support when something breaks.
That ongoing work is cheaper than rebuilding from nothing when your two-year-old app stops working on the latest phones. We treat maintenance as part of the contract, not an afterthought. Your app stays live and usable for as long as your business needs it.
App development in Harrow — common questions
How long does it take to build an app?
Depends on scope. A tight MVP—booking system, inventory tool, or payment app—typically takes 8–12 weeks. We scope ruthlessly to hit that window. Bigger feature sets take longer. We'll be clear upfront on timeline and what ships first.
Will my app work if I'm offline?
Only if we build it that way. Not every app needs offline support. But if your team works in the field—deliveries, site visits, cash handling—we design offline-first: your app works without signal, syncs when you're back online.
What happens after launch?
We move into maintenance mode. Regular updates for new iOS and Android versions, security patches, small features, and bug fixes. If something breaks, you have priority support. We keep the app live and working for as long as you need it.
Can you build an app that works on iPhone and Android?
Yes. We build native apps per platform—better performance—or cross-platform frameworks where they make sense. We'll recommend based on your budget, timeline, and what your users actually need. Both approaches get you to App Store and Play Store approval.
How much does an app cost?
Depends on complexity and scope. A simple booking or inventory app costs less than a multi-feature platform. We quote based on features, not guesswork. Maintenance is separate and predictable. We'll give you a clear number before we start.
Do you handle payments in the app?
Yes. We integrate Apple Pay, Google Pay, Stripe, and other processors. We manage the compliance side—PCI requirements, payment verification, receipts. We also handle refunds and reconciliation so you know exactly what's come in.
More on app development
Jargon check: Headless Commerce
app development in nearby areas
Need app development in Harrow?
Tell us what you need and we'll come back with a fixed quote and a timeline — usually the same day.