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React Native Migration · Bristol

React Native Migration in Bristol

React Native version migrations for Bristol organisations, where the work is rarely in your own code. Framework upgrades change native build configuration, and the blockers are third-party modules that have not been updated — so the migration is largely an exercise in resolving other people's dependencies against a moving target.

Why this comes up

The problem

The framework upgrade is straightforward and four native modules will not build against the new version.

What you get

What we deliver

  • Every native dependency assessed against the target version before starting
  • Blocking modules replaced, forked or removed as an explicit decision
  • Build configuration changes applied on both platforms and verified
  • Architecture migration handled where the framework requires it
  • One version at a time where the gap is large, rather than a single jump
  • The app exercised on real devices, since build success is not sufficient

Want this scoped for your business in Bristol?

Thirty minutes, no charge, no sales script. You leave with a written summary of what react native migration would actually involve — whether or not you use us.

Book a 30-minute call

Working in Bristol

South West

Bristol combines aerospace engineering with one of the country's strongest creative and environmental-tech scenes, and clients here are more likely than most to ask hard questions about sustainability and data ethics.

Engineering-grade requirements from aerospace clients, and brand-led digital work from the creative and environmental sectors.

Sectors we work with in Bristol

  • Aerospace
  • Creative & Media
  • Technology
  • Financial Services
  • Environmental

What we work with

Technologies and platforms

  • React Native
  • TypeScript
  • Gradle
  • CocoaPods

Who we work with

Industries we serve

  • Retail
  • Financial services
  • Media companies
  • Healthcare
  • SaaS businesses

Why us

Why Bristol 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

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

React Native Migration in Bristol — common questions

Why are native modules the blocker?
Because they contain platform code compiled against framework internals. When those change, the module must be updated by its maintainer — and if nobody is maintaining it, you inherit the work or find something else that does the job.
Should we jump several versions?
Only where the gap is small. Across a large distance the changes interact, and a failure has too many possible causes to diagnose efficiently — stepping through versions is slower in total and far more predictable.
Is a successful build enough?
No. Upgrades change runtime behaviour, and modules can compile while behaving differently — so the app needs exercising on real devices across the main flows before anyone concludes the migration worked.
What if a module has no replacement?
Then it is a decision rather than a technical problem. The options are forking and maintaining it, writing a native module yourself, or dropping the feature — and choosing deliberately early is considerably better than discovering it mid-upgrade. Each option carries an ongoing cost, so the choice belongs with whoever owns the product rather than with whoever is doing the upgrade.
Do you work with businesses across Bristol?
Yes. We are based in Leicester, United Kingdom and work with clients throughout South West, including Bristol and the surrounding Bristol area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Bristol businesses do you usually work with?
Engineering-grade requirements from aerospace clients, and brand-led digital work from the creative and environmental sectors. Beyond that we work across Aerospace, Creative & Media, Technology, Financial Services and Environmental.
Do you cover the areas around Bristol?
Yes — we work throughout South West, including Cardiff, Bath, Southampton. Bristol is an urban area of roughly 700,000+, and we take on work across the wider Bristol region rather than the city boundary alone.

Talk to us about React Native Migration in Bristol

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

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom