iOS App Development · London
iOS App Development in London
Native iPhone and iPad apps for London businesses, built in Swift. The case for going native rather than cross-platform is specific: deep hardware access, demanding interface work, or a user base that is overwhelmingly on iOS. Where that does not describe you, building twice is a cost worth questioning.
Why this comes up
The problem
An iOS app is needed and the decisions in front of you — native or cross-platform, what goes in version one, how App Store review will treat it — have no obvious answer from inside the business.
What you get
What we deliver
- A native Swift and SwiftUI app built to current iOS conventions
- A first version scoped to something shippable rather than complete
- Offline behaviour designed deliberately, since mobile connectivity is intermittent
- App Store review requirements handled before submission rather than after rejection
- TestFlight distribution, so real people use it before the public does
- Crash and usage reporting from day one, because bug reports from users are unreliable
Want this scoped for your business in London?
Thirty minutes, no charge, no sales script. You leave with a written summary of what ios app development would actually involve — whether or not you use us.
Working in London
London
London clients usually come to us because they want senior people actually on their project rather than a large agency's B team, and because Midlands rates buy considerably more delivery per pound.
Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates.
Sectors we work with in London
- Financial Services
- Professional Services
- Technology
- Media
- Hospitality
- Retail
What we work with
Technologies and platforms
- Swift
- SwiftUI
- Xcode
- TestFlight
- Firebase
Who we work with
Industries we serve
- Retail
- Healthcare
- Field services
- Hospitality
- Financial services
Why us
Why London businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in London
Looking for the full picture? See our iOS App Development services, everything we do in London or browse everything we do.
iOS App Development in London — common questions
- Native or cross-platform?
- Native where you need deep hardware integration, demanding animation, or the latest platform features on release day. Cross-platform where the app is largely forms, lists and data, which describes most business apps honestly assessed.
- How long does App Store review take?
- Usually a day or two, but the timing is not the risk — rejection is. Guideline breaches around account deletion, payments and privacy disclosures are the common causes, and they are far cheaper to design for than to discover at submission.
- What does an app cost to keep running?
- Budget for it annually. iOS releases yearly, devices change, and an app left untouched for two years starts breaking in ways users notice before you do. Maintenance is the line most often missing from an app business case.
- Do we need an Apple Developer account?
- Yes — an organisation account under your own business, not an individual's. Apps published under a developer's personal account become a genuinely awkward problem when that relationship ends, and transferring is more painful than setting it up correctly.
- Do you work with businesses across Greater London?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout London, including London and the surrounding Greater London area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of London businesses do you usually work with?
- Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates. Beyond that we work across Financial Services, Professional Services, Technology, Media, Hospitality and Retail.
- Do you cover the areas around London?
- Yes — we work throughout London, including Reading, Milton Keynes, Cambridge, Brighton. London is an urban area of roughly 9,000,000+, and we take on work across the wider Greater London region rather than the city boundary alone.
Talk to us about iOS App Development in London
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise