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Mobile Apps

Customers want to book from their phone. We check whether that needs an app first, then build it once and launch it on both stores.

Who it's for

small businesses whose customers would open an app weekly, firms whose field engineers, drivers or mobile therapists run their working day on one, operators bundling an app with services, or founders validating a mobile-first product.

Starting at £12,000 per project · excl. VAT

Starting at
£12,000per project
excl. VAT

What moves the price: screen count, offline and notification behaviour, how many systems it connects to, and whether one codebase can serve both stores.

What's included

  • A written scope with a target launch date, the screens and steps agreed, and a design built for one-handed use
  • One React Native or Flutter codebase for iOS and Android, built around one core flow
  • A connection to one system you already run
  • Store listings, privacy declarations, review rounds and both launches, in developer accounts registered in your name
  • 30 days of post-launch fixes

Not included

  • Offline use, push notifications, more screens, more connected systems, a new back-end built for the app and fully native Swift and Kotlin builds — each is an add-on, priced in the scope; version-two features after launch are quoted as their own project
  • A portal or booking tool that runs in the browser and installs to the home screen — that is Web Applications
Get a mobile app quote

Customers want to book from their phone. Do you need an app for that?

Sometimes. If customers book a few times a year, a booking page that works properly on a phone does it for less. It also reaches everyone who searches, not only the people who installed something.

When an app is the answer, we design and build it for UK businesses on iOS and Android, from one React Native or Flutter codebase. Where the app earns it, we build in native Swift and Kotlin instead. Then we take it through Apple's and Google's review to launch.

Sound familiar?

Three situations where an app can look like the answer, and not all of them need one.

The patients who ask to book on their phone. Someone at the practice suggests an app. But if patients come in twice a year, an app they would open twice a year has little reason to stay on their phone. What they are asking for may be a booking page and a reminder text.

The customers who come back every week. A gym's class timetable, a café's loyalty stamps, the same order from the same shop. A saved account, loyalty and order history are what make an app worth opening again.

The team that works out of a van. Job sheets are filled in on paper, photographed and sent on WhatsApp, and someone in the office types them up again. The job needs the camera, the location and a form that still works where there is no signal.

How it works

  1. We test the idea before we price it. A 30-minute call, then within three working days a written scope — or, where we are plainly the wrong firm, a referral. The scope names the framework, with the reasoning behind it, and a target launch date.
  2. The data questions are settled in design. We decide which permissions the app asks for and when, what it collects, and whether anything tracks before consent, while the screens are designed for one-handed use. Both stores make you declare what the app does with data, so this cannot wait until the listing is written.
  3. It connects to what you already run. The app connects to your booking diary or CRM. If your system cannot be connected to, we say so and scope a different route rather than promise a connection that does not exist.
  4. You approve it on a phone, not in a meeting. Builds go onto your phone, used where the app will be — in the van, at the counter, between appointments. Sign-off is weeks of ordinary use, not a demo at the end of the build.
  5. We take it through store review. We write the listings, complete the privacy declarations, answer review feedback and resubmit until the app is live, then fix what launch turns up for 30 days.

What the starting price buys

A first version live on both stores, built around one core flow: the thing people would do on the app in a normal week. In a booking app that is booking a class or an appointment; elsewhere it may be reordering or logging a job. It is a production app, not a prototype — and not every feature you can imagine in version one.

Add when you need it: real offline use · push notifications · more screens and flows · more systems connected · a new back-end built for the app · fully native Swift and Kotlin builds · version-two features after launch. App Store Optimisation and paid-install campaigns are not part of the service.

Native, cross-platform, or no app at all?

The framework question matters least. The route is what costs money, and there are more than two.

RouteRight whenWhere it starts
No app: a booking page with confirmation and reminder textsCustomers book from their phone a few times a yearA booking calendar with texts, set up under CRM
A web app that installs to the home screenPeople sign in to a portal, a dashboard or a quoting tool; it runs everywhere and changes need no store approvalFrom £4,500 excl. VAT for a focused tool, multi-user platforms with several integrations from £9,500 excl. VAT, on Web Applications
A cross-platform store app (React Native or Flutter)At least two of these are true: people open it every week; it needs the camera, background location or real offline use; people are signed in; notifications are the mechanic, not the wish, such as a delivery that is out or a shift that is available; your own staff run their working day on itFrom £12,000 excl. VAT
A native app (Swift for iOS, Kotlin for Android)The app does something performance-critical or deeply platform-specificPriced in the scope

One codebase means the engineering is not paid for twice. What still doubles sits after the code: two sets of listings and declarations, two review queues, and two operating-system release calendars to keep up with.

What keeps you safe

The app is yours. The Apple and Google developer accounts are registered in your name from the start. An app published under someone else's account cannot be updated or moved without them.

Your customers' data has the same UK GDPR protection as on your website. Nothing tracks anyone before they consent, to the ICO's standard for websites, and each store's privacy declaration must match what the app does or the app is rejected.

Any review prompt carries no reward. If the app asks for reviews, it asks everyone, with nothing attached. Since 6 April 2025 it has been a banned practice in the UK to conceal incentivised reviews, so "five stars for 10% off" is an enforcement risk.

For aesthetic clinics, the store listing, an in-app treatment menu and notification wording sit under the same advertising rules as the website.

What it costs

From £12,000 excl. VAT for the first version on both stores. More screens, offline use, notifications, connected systems, a new back-end and native builds raise it. A Maintenance care plan from £250 a month excl. VAT then keeps it current with Apple's and Google's releases; the tier follows how much you depend on the app. For comparison, a website starts at £3,500 excl. VAT. Every service is on the pricing page.

When something else fits better

If the job is to be found — enquiries and bookings from search — an app is invisible to it. Nobody discovers a plumber, a clinic or a letting agent by browsing a store; what you want is a website that opens properly on a phone, and SEO. If what you have described is a logged-in area, a web app runs on every phone and changes without waiting for review. A dental practice whose patients visit a few times a year may do better with a booking-first website and automated recall. Still deciding? Start with the free audit of the site you already have. If your mobile website is what costs you enquiries, that is a cheaper problem, and the one to fix first.

None of this is legal advice. Get in touch with what people would do on the app in a normal week, or read how a project runs first.

FAQ

Frequently asked questions

From £12,000 excl. VAT for a first version live on both the App Store and the Play Store — a production app, not a prototype. It is built around one core flow, the thing people would do on the app in a normal week, and runs from one React Native or Flutter codebase on both stores. It is not every feature you can imagine in version one: offline use, push notifications, more screens, more connected systems and a new back-end are add-ons, priced in the written scope.

Ready to get started?

Book a 30-minute discovery call — no pitch, just a clear plan and a written scope within three working days.

Get a mobile app quote