Flutter
One codebase for iOS, Android, web and desktop, with native-level performance from a single, maintainable source.
our stack
Technology that works for you and for our agents.
We build on a proven, mature stack: Flutter, Java with Spring Boot, and AWS. Chosen for the balance of maturity and developer-friendliness, now driven at agent speed and hardened by engineers.
Flutter
Java · Spring Boot
AWS · ECS
The same stack, now at agent speed.
Agentic coding doesn't replace our foundations; it accelerates them. Agents build on the stack we trust, and every line is audited and hardened before it ships. Speed and security come together, not at each other's expense.
the core stack
Three technologies, one reliable foundation.
We work primarily with Flutter, Java (Spring Boot) and AWS. A mix chosen for maturity and developer-friendliness, so the software we ship is reliable, scalable and easy to maintain.
Java · Spring Boot
A mature, battle-tested backend for robust, secure and scalable services and APIs.
AWS · ECS
Cloud infrastructure that scales on demand, with container orchestration for resilient, cost-efficient deployments.
frontend
What is Flutter?
Flutter is Google's open-source UI framework. We build apps for Android, iOS, web and desktop from one codebase. Write it once, ship it everywhere, without compromising on feel.
Pioneers since 2019
The engineers behind Only Good Vibes have built with Flutter since 2019. We started with an internal HR app and grew into specialists in mobile and web alike. That experience now sits behind every agent-assisted build, shipped for clients like BASF, VRT, Intelliprove and Koukki.
One codebase, every platform
Write it once; ship native apps to all of these.
iOSAndroidWeb
macOSWindowsLinux
Six reasons we choose Flutter
Seamless experiences
A consistent UI across iOS, Android, web, macOS, Windows and Linux.
Faster development
Flutter and FlutterFlow speed up design and build, so projects launch sooner without losing quality.
Native performance
Flutter apps run at native speed, fast and responsive on every device.
Fewer bugs
One codebase means a smaller surface for bugs and far easier maintenance.
Easy to adapt
A single codebase keeps your app flexible for new requirements and trends.
Reliable technology
Backed by Google and updated regularly with the latest features and security improvements.
backend & cloud
AWS and ECS for secure, fast, scalable backends
What is AWS?
AWS (Amazon Web Services) is like a power grid for computing. Instead of buying and maintaining your own servers, you rent exactly the storage and compute you need, for as long as you need it.
What is ECS?
ECS (Elastic Container Service) is a smart, self-managing harbour for your application's containers: small, self-contained software packages that run anywhere. ECS organises and scales them automatically.
Six benefits of AWS and ECS
Reliability
AWS servers almost never go down, so your app stays reachable for your users.
Scalability
Start small and scale up as you grow, adding capacity only when you need it.
Security
Top-tier security keeps your data locked down, like money in a vault.
Cost control
Pay only for what you actually use, and match spend to real demand.
Speed
Roll out changes and ship updates quickly with container-based deployments.
Easy management
ECS handles the heavy lifting of orchestration so your team can focus on the product.
Frequently asked questions
How do you keep applications secure?
Security is a top priority across our process: encryption, secure-coding practices, regular security audits and compliance checks against industry standards. With agentic coding, every generated change is audited before it ever ships.
Can you integrate with our existing systems?
Yes. We have extensive experience integrating new applications with existing business systems and databases, for a seamless fit with your processes.
What's your experience with scalable cloud solutions?
We've delivered scalable cloud solutions for everything from small start-ups to large enterprises, making optimal use of cloud resources.
How do you handle project management and communication?
We work agile, with flexibility, transparency and continuous improvement, and we keep you updated through regular meetings, reports and access to our project tools.
Is Flutter a good choice for app development?
Yes. Flutter lets us build beautiful apps fast across platforms from one codebase, with a consistent experience and excellent performance.
Is Flutter secure?
Flutter is a secure framework, backed by Google and updated regularly with the latest security improvements.
Which apps are built with Flutter?
Flutter powers apps from Google Ads and Alibaba to WeChat and Sonos, and we've shipped it for clients like BASF, VRT, Intelliprove and Koukki.
Let's build on solid foundations.
Tell us what you're building. We'll bring the stack, the agents and the engineering discipline to ship it securely.