Mobile App Development Cost UK (2026 Pricing)

Quick answer: real UK mobile app costs in 2026

UK mobile app pricing splits by complexity and approach:

Tier	UK cost range	Timeline
Simple cross-platform MVP	£15,000-£40,000	3-5 months
Mid-complexity (single platform)	£25,000-£60,000	4-7 months
Mid-complexity (both platforms)	£40,000-£100,000	5-9 months
Complex production (both platforms)	£75,000-£200,000+	9-15 months
Enterprise scale	£200,000+	12+ months

Plus £79/year Apple Developer Account + 30% in-app revenue share, $25 one-time Google Play, and ongoing maintenance budgets typically 25-30% of build cost per year.

Our Mobile App Development starts at £2,999, with a fixed quote in writing before any build work begins. See what is included and order online.

Native vs cross-platform: real cost difference

Native iOS (Swift) + Native Android (Kotlin)

Two codebases, two teams, two builds. Best performance, deepest platform integration. UK cost premium 30-50% vs single cross-platform codebase.

Cross-platform (React Native, Flutter)

Single codebase deploys to both. Performance gap vs native is narrow in 2026 for most use cases. 30-40% cheaper to build than dual native. Right for: most consumer apps, internal business tools, B2C marketplaces.

When native is genuinely required

Heavy use of platform-specific APIs (ARKit on iOS, advanced Android intents), apps relying on cutting-edge OS features within weeks of release, performance-critical real-time apps (games, video, AR). Most UK B2C businesses don’t hit these requirements.

iOS-first, Android-first, or both?

UK device market split (2026)

iOS holds roughly 50-55% of UK smartphone market by device count, but 65-75% of paid app revenue. Android users skew toward lower-paying activity, free apps, longer device lifespan.

iOS-first if

Premium B2C product, paid subscriptions, target audience skews wealthy/urban/under-45. UK financial services, premium fitness, productivity apps typically launch iOS first.

Android-first if

Target audience skews global/lower-income/older devices. UK service apps targeting tradespeople, deliveries, or lower-income consumers often see better launch metrics on Android.

Both if

You can afford the dual launch cost. With cross-platform development the dual-launch is ~25% more expensive than single-platform, vs ~80% more for native, making cross-platform “both” the most cost-efficient route in 2026.

Backend infrastructure: usually NOT included in app build cost

A common UK gotcha: app development quotes often cover the app itself, not the backend it talks to. Real backend cost:

Simple Firebase-based backend (auth, simple DB): £0-£500/mo. Often built into the app project at no extra design cost.
Custom Node.js / Laravel API: £5,000-£25,000 additional build cost. £100-£1,000/mo hosting.
Full backend with admin panel + multi-tenancy: £15,000-£50,000+ additional build cost.

Always confirm with your UK developer whether the quote includes backend. If not, expect to spend an additional 40-80% on backend development.

App Store and Google Play submission costs

Apple App Store

Apple Developer Programme: £79/year ($99 USD)
30% commission on in-app purchases (15% for first $1M annually as of 2021)
Review process: 24-72 hours typical, 1-2 weeks for complex apps
Common rejections: incomplete metadata, missing privacy policy, broken in-app purchases, copyright issues

Google Play Store

Developer account: $25 one-time
30% commission on in-app purchases (15% for first $1M)
Review process: 1-3 hours typical, can extend to 7 days
More lenient than Apple, but stricter on policy violations

Ongoing app maintenance: what to actually budget

Annual updates required to stay live

Apple and Google deprecate APIs annually. Apps that don’t update within 12-24 months of API deprecation get removed from the stores. Minimum maintenance: 5-15 dev days/year for compatibility updates. Typical UK cost: £2,000-£8,000/year.

Active feature development

Adding meaningful features post-launch: £5,000-£30,000 per major release. Most successful UK consumer apps ship 2-4 major releases per year.

Server / backend hosting

Scales with usage. Small UK app with under 5,000 active users: £100-£500/mo. Growing to 50,000+ users: £500-£3,000/mo.

Push notifications + analytics + crash reporting

Firebase covers most basics for free. Premium analytics (Mixpanel, Amplitude): £100-£500/mo. Crash reporting (Sentry, Bugsnag): £50-£300/mo.

If the app is a subscription product, see our guide to what a SaaS product costs to build.

Common UK mobile app cost overruns

“We forgot about Android”: quoted iOS-only, then realised the customer base was Android-heavy. Adding Android post-launch costs more than launching dual.
App Store rejection on submission, common with apps that haven’t followed Apple’s Human Interface Guidelines. Re-submission cycles take 1-2 weeks each.
Backend not budgeted: app delivered but no working backend. Adds £10k-£30k unexpectedly.
Slow first version, can’t fix without rebuild. Performance issues that emerge at scale often require architectural changes. Plan for an “optimisation pass” budget of £5k-£15k.
No marketing / ASO budget: building an app is half the work. App Store Optimisation (£500-£2,000) and launch marketing are typically not in the build quote.

Worked example: UK fitness app MVP budget

A founder launching a UK home workout app:

Discovery + spec (3 weeks): £4,500
UI/UX design (4 weeks): £6,000
Cross-platform build (16 weeks, React Native): £40,000
Backend API + admin panel: £12,000
Stripe + email + push notifications integration: £3,500
App Store + Play Store setup: £1,000
Marketing assets, ASO, initial campaign: £2,000
Total MVP: £69,000
Apple Developer + Play Console: £100/year
First 12 months operating costs: £6,000-£10,000

That gets a UK fitness app to a launched, functioning product on both stores. Premium features, advanced analytics, or AR/VR additions would push the budget to £100k+.

UK app store optimisation: what gets apps discovered

Building the app is half the work; getting it discovered is the other half. App Store Optimisation (ASO) is the SEO of mobile apps.

The ranking factors that matter

App title (most weight: include your top keyword)
App subtitle / short description
Keyword field (App Store only) to 100 chars for high-intent terms
Description content (long description for Google Play, partially for App Store)
Reviews and ratings (4.5+ stars dramatically improves discoverability)
Download velocity (rapid early downloads boost rankings)
Retention rate (apps people keep get promoted)

Typical UK ASO budget

£500-£3,000 one-off for ASO setup including keyword research, screenshot design, A/B testing setup. Ongoing optimisation £200-£800/month. Worth it because organic app store traffic is free and high-converting.

Push notifications: getting them right for UK audiences

Mobile apps justify themselves partly through push notifications, the only direct re-engagement channel that doesn’t rely on email. UK opt-in rates are typically 50-65% on iOS, 80-95% on Android.

What works in UK push notifications

Personalised content (referencing user name, recent activity)
Time-sensitive offers (genuine urgency, not fake)
Geographic relevance (location-aware messages)
Frequency limits (1-3 per week max for non-transactional apps)

What fails

Marketing-heavy messages without value
Daily generic broadcasts
“We miss you” guilt-trip messaging
Push at unsocial hours (UK opt-out spike: 9pm-7am)

App Store + Play Store review processes

UK app launches commonly delay because of review rejections. Most-common reasons:

Apple App Store rejections

Incomplete metadata or missing privacy policy
Misleading screenshots vs actual app behaviour
In-app purchase issues (link must go through Apple)
Copyright or trademark issues
Crashes during review (test on the actual review device profile)

Google Play rejections

More automated, less common but more sudden. Common reasons: target SDK version too old, permission abuse, policy violations on content. Google often delists without warning, so keep backups.

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Sources & Further Reading

Frequently asked questions

How much does a UK mobile app cost? +

Cross-platform MVP £15,000-£40,000. Single platform mid-complexity £25,000-£60,000. Both platforms mid-complexity £40,000-£100,000. Complex production £75,000-£200,000. Most UK consumer app launches land in the £40k-£80k range for both iOS and Android.

Should I build iOS first or Android first? +

iOS for premium B2C with paid features (65-75% of UK app revenue). Android for global, lower-income, or service-worker audiences. Cross-platform (React Native, Flutter) lets you launch both for ~25% more than single platform, usually the right answer in 2026.

How long does a UK mobile app take to build? +

Simple cross-platform MVP: 3-5 months. Mid-complexity: 5-9 months. Complex production: 9-15 months. Add 1-2 weeks for App Store review on each release.

What does Apple charge for the App Store? +

Apple Developer Programme: £79/year. Commission: 30% on in-app purchases (15% for first $1M annually). Google Play: $25 one-time + same commission structure.

Cross-platform vs native: which is cheaper? +

Cross-platform is typically 30-40% cheaper than dual native for similar functionality. Native is justified only when you need cutting-edge platform features or performance-critical real-time functions.

Do I need a mobile app, or would a web app do? +

If people will use it daily, or need offline access, notifications or the camera, an app earns its place. If they mostly look things up or log in occasionally, a web app or a website is usually cheaper to build and quicker to change.

Mobile App Development Cost UK: 2026 Pricing Guide