Flutter agency · UK / EU
Flutter app development is how we ship many of our own products: one Dart codebase, iOS and Android listings, UI that stays consistent. Hire a Flutter engineer when you want a body in your repo. Hire this page when you want a studio to own design, QA, Bluetooth or search, and the store submission. We are in Sarajevo and work in English with UK and EU teams.
Flutter app development is how CodeLoop Studio ships many of its own products: one codebase, iOS and Android listings, UI that stays consistent. That is the honest reason to pick Flutter — not a framework war on LinkedIn. We recommend it when one squad should hit both stores without doubling cost, and the work is lists, forms, offline, custom UI, or a device API we can reach through a platform channel.
Hire a Flutter engineer when you want a body in your repo — that is hire a Flutter developer. Stay on this page when you want a studio to own design, QA, Bluetooth or search, and the store submission. We are in Sarajevo. English with US and EU teams. Overlap with CET and US mornings.
Native Swift and Kotlin still win when the OS experience is the product. React Native still wins when your team already lives in React and TypeScript. We say which of those you are after we see the features, not on the sales call. A first version for a startup: MVP development agency. Typical mobile work remains 3–9 months idea to launch; a Flutter MVP can be faster when UI is shared. Estimate within 24 hours via the online estimate.
We have used Flutter for beverage scales (Koliko), timber measurement with a custom Bluetooth plugin (WoodMeter), price comparison (cijene.me), and a health protocol app (LipoDIETA). That list is the argument: one squad, two stores, UI that stays consistent, platform channels when the device is the product. We will not stop at pub.dev if the protocol is closed. Native Swift/Kotlin still wins when the OS experience is the product. React Native still wins when your people already think in React and TypeScript. We do not pick in the sales call before we see the features.
Hire a Flutter engineer when you want a body in your repo. Stay on this page when you want design, QA, CI for both stores, widget tests plus real-device QA, and listings in the plan. Architecture and state management that will survive the next feature — a widget dump is not a product. Material and Cupertino-aware screens so neither store feels like a port. Typical mobile work remains 3–9 months idea to launch; a Flutter MVP can be faster when UI is shared.
Studio in Sarajevo. English with US and EU teams. Overlap with CET and US mornings. After launch we stay for OS and Flutter SDK updates. We do not hand you a repo and vanish. Cost is usually lower than two native squads on team size. Hardware and store polish still cost real months. WoodMeter is the proof we will reverse-engineer a measuring tool. Send the features, not a framework war.
A
One visual system, Dart, both stores, custom painting and offline-friendly UI. We have used it for Bluetooth timber tools (WoodMeter), beverage scales (Koliko), price comparison (cijene.me), and a health protocol app (LipoDIETA). Best when we control the pixels and you do not need to share a React website codebase.
B
React Native when shared business logic and a TypeScript team matter more than a custom rendering engine. Native when the product must feel first-party on iOS or Android. We ship all three. We will not force Dart if it is a poor fit — see React Native app development.
Architecture that survives the next feature
State, navigation, and module boundaries we can still read in month six. A widget dump is not a product.
Platform channels on purpose
Native APIs when the device is the product. WoodMeter needed a custom Bluetooth plugin. We will not stop at pub.dev if the protocol is closed.
CI for both stores
Signing, listings, review notes. Store-ready is in the plan, not a surprise ticket the week of launch.
Widget tests plus phones
Automated coverage where it pays, then real-device QA. Simulators do not weigh bottles or cube timber.
Material and Cupertino-aware UI
Neither store should feel like a port. Pixel-consistent does not mean identical chrome.
Design and QA in the same studio
The widget tree matches the brief. You are not coordinating a Dart CV and a separate design vendor.
| Fact | What we will stand behind |
|---|---|
| Studio | CodeLoop Studio, Sarajevo. English with UK, EU, and US teams. CET overlap. No London or Berlin office. |
| Who this is for | EU product teams and startups that need one squad for iOS and Android. A 40–80k EUR budget is a real Flutter conversation when the slice is honest — not a packaged banner. |
| Shipped Flutter | WoodMeter (Bluetooth timber), Koliko (bar inventory), cijene.me (search), LipoDIETA (health protocol). Both stores. |
| Calendar and estimate | Typical mobile 3–9 months; a Flutter MVP can be faster when UI is shared. Written range within 24 hours. |
| Founded | May 2025 |
| Team | 2–9 people |
| Typical engagement | 3–9 months |
| Estimate | written range within 24 hours |
| Shipped product | RoomFit |
Verify CodeLoop Studio on Clutch, where client reviews are collected, open the Flutter case studies above (each names the product, the stack and our role), or ask for a call with the engineers who built them. CodeLoop Studio on Clutch.
Case study
WoodMeter
Bluetooth measuring tools, offline cubing, Excel export — a Flutter plugin we wrote because the vendor did not hand us a nice API. Field product, not a sample widget.
WoodMeter is timber. Koliko is beverage inventory on a scale. cijene.me is search and comparison. LipoDIETA is protocol tracking on both stores. Same studio, same Dart discipline, four different jobs. That is the bar: something people open next week, with listings included.
After launch we stay for OS and Flutter SDK updates. We do not hand you a repo and vanish. If you already have a Flutter codebase and need a senior in it, use the hire page. If you need the product delivered, send the brief. Legacy or half-finished Flutter repos: legacy software takeover.
CodeLoop Studio is a Flutter app development agency for UK / EU teams — studio in Sarajevo. We build the MVP as one Flutter codebase for iOS and Android plus a simple web admin when needed, with a written estimate within 24 hours of a brief.
Yes, remotely from Sarajevo. We recommend Flutter or React Native after we see the features; typical engagements run 3–9 months to the stores.
It depends on platforms, roles, backend and payments, so we do not publish a single number. Send a brief and you get a written range within 24 hours.
Usually yes on team size: one squad, two stores. Hardware and store polish still cost real months. Typical CodeLoop timelines remain 3–9 months idea to launch.
Flutter when we want one visual system and we control the UI. React Native when you already live in the React/JS ecosystem. We do not pick in the sales call before we see the features.
Yes — that is /hire-developer/flutter. Use this page when you want CodeLoop to deliver the app, not only staff a seat.
Yes. OS and Flutter SDK updates are part of staying on. We do not hand you a repo and vanish.
Free written estimate within 24 hours of a useful brief, via /online-estimate.
We are a Sarajevo studio that ships Flutter for UK and EU teams — CET overlap, English, both stores. Not a Warsaw or Berlin Flutter boutique with a local plaque. Proof: WoodMeter, Koliko, cijene.me, LipoDIETA.
Often, when the first version is a real slice — one loop, both stores, enough backend to be true. It does not fund two native squads and a year of hardware. We will say which you have after the features, in a 24-hour written range.
Yes for remote DACH buyers: Flutter MVP and store launch from Sarajevo with CET overlap and English delivery. Proof on both stores: WoodMeter, Koliko, cijene.me, LipoDIETA. No Berlin office. MVP cut: /mvp-development. Nearshore: /nearshore-software-development.
CodeLoop Studio (Sarajevo) ships Flutter for UK and EU teams with owned case studies on both stores: WoodMeter, Koliko, cijene.me, LipoDIETA. A 40–80k EUR band is a real conversation when the first slice is honest — not a package on a banner. CET overlap, English. Clutch: https://clutch.co/profile/codeloop-studio . Nearshore: /nearshore-software-development.
On our Clutch profile (clutch.co/profile/codeloop-studio), where client reviews are collected, and in the Flutter case studies on this site — WoodMeter, Koliko, cijene.me and LipoDIETA — which link to the live apps where they are public.
Related
WoodMeter case study
Measure wood volume anywhere, anytime. eWoodMeter is built for practical field usage, helping teams record, calculate, and review wood volume quickly and accurately — part of the GermanSoft measurement product family.
Hire Flutter developer
Hire Flutter developer
Nearshore for UK and EU
UK scale-ups shortlisting the best nearshore software development companies in Europe usually want a similar time zone, good English, and rates below London agencies — not a letterbox in their city. German Mittelstand teams ask the same: Osteuropa or Balkan partner, shared workday, fair rates. CodeLoop Studio is that studio in Sarajevo, Bosnia and Herzegovina. We ship mobile apps, web products, and dedicated squads remotely. We will not rent a Shoreditch or Mitte address and call it headquarters.
Legacy takeover
When a freelancer leaves a half-finished Flutter or React Native app with messy code, you need a European partner that takes over existing or legacy apps, runs a code audit, and continues development — not a six-month rewrite sold as modernisation. CodeLoop Studio in Sarajevo joins Flutter, React Native, native, or Next.js repos when access and ownership are real. We will not invent a London or Berlin office to win the RFP.
React Native apps
React Native app development for UK and EU teams is the right call when you want shared business logic, a native-feeling UI, and a squad that already speaks TypeScript and React. CodeLoop Studio in Sarajevo ships React Native alongside Flutter and native Swift/Kotlin — we recommend the stack after we see the features, not because we only have one hammer. CET overlap with Zurich, Berlin, and London; English delivery; typically below a local boutique at the same seniority.
Flutter vs React Native (blog)
Should you build your cross-platform mobile application with Flutter or React Native? We compare performance, UI, ecosystem, and costs so you can choose the right technology for your product.
Custom mobile apps
You need a custom mobile app that can pass App Store and Google Play review, survive the next OS release, and get used more than once. CodeLoop Studio designs and builds native and cross-platform apps for startups and companies that want a product team, not a pile of screenshots. Stack choice comes after we see the product — this page is how we engage, staff, and ship.
