Flutter app development in Toronto and across Ontario: iOS, Android and web applications from one codebase in Dart — offline-first field apps like the cockpit app we built for Ontario's aviation and forest-fire services, consumer apps shipped to the Play Store in thirty days, accessible by construction, integrated with the systems you run, and released and operated by the team that built them.
One codebase in Dart. The model queues the day offline, the release pipeline catches the crash, and the same code ships to the App Store, the Play Store and the web.
iOS, Android and web, in Dart
1 codebaseiOS, Android and web, in Dart
from kickoff to the Play Store, for CYA Live
30 daysfrom kickoff to the Play Store, for CYA Live
cockpit-ready, one-handed, for Ontario's water-bomber pilots
Day + nightcockpit-ready, one-handed, for Ontario's water-bomber pilots
One codebase, built to last
Flutter lets one team build iOS, Android and web applications from a single codebase in Dart, compiled to native code, drawing the same interface on every platform. We use it because it lets the same people who model the data design the interface and write the integration, and because one codebase can be tested, upgraded and understood in year three. The two projects on this page show the range: a cockpit application for Ontario’s water-bomber pilots that took the flight day off paper, and a consumer video client shipped to the Play Store in thirty days for a platform with a million users.
The model is the app
An app is awkward or simple according to its data model, not its screens. For the Electronic Daily Flight Report, modelling every event of a flight day — water-bombing, refuelling, every mission type — as a descendant of a single event class was the decision that made the interface simple enough to use one-handed at night. We start there, then design on real devices, then build in two-week increments with the integration alongside, so the app that ships is the app the people in the field will actually use.
The cockpit is the office. The Electronic Daily Flight Report runs on an iPad mounted beside the instruments of an Ontario water-bomber, logging the flight day one-handed, day and night — built in Flutter for the Ministry of Natural Resources and Forestry. Read the case study.
What we build with Flutter
Native performance from one codebase — and the engineering that makes the app survive its second year
One codebase, every platform
Dart compiled to native code for iOS and Android and to the web from the same source, with one design system and one test suite. Faster to build, and one place to fix — which matters more in year two than on launch day.
Offline-first field applications
Apps that work where the network does not — in the cockpit, on the site, in the field — with a data model that queues events and reconciles when connectivity returns. The Electronic Daily Flight Report for Ontario’s aviation, forest-fire and emergency services is the model: every event a descendant of one class, logged one-handed, readable day and night.
Consumer apps at speed and scale
When a platform needs a client by a date, we ship it: CYA Live’s Android app went from kickoff to the Play Store in thirty days, at feature parity with web and iOS, with the live video and moderated chat a million-user platform depends on.
Accessible by construction
Semantics for screen readers, contrast that passes, text that scales, targets you can hit with a thumb — built in from the first screen and tested with VoiceOver and TalkBack, to WCAG 2.1 AA wherever it applies. It is the same accessibility practice that serves our public-sector clients.
Integrated with the systems you run
APIs in Python, Odoo portals, Quickbase applications, legacy back ends: the app is one end of an integration we write and test end to end, so what the field enters lands where the office reads it.
Released, and operated
Store accounts in your name, continuous builds, TestFlight and internal testing tracks, crash reporting, and the updates the platforms demand every year — Flutter upgrades, OS releases, store policy changes — handled by the team that wrote the code.
How an app engagement runs
Discover
The users, the conditions they work in, the data the app has to capture or show, and the systems it has to talk to. A scope you can price and a plan you can defend.
Model, then design on devices
The data model first — it is what makes an app simple or awkward — then the interface designed on real devices, in the light and with the hands your users actually have.
Build in two-week increments
A working app in testers’ hands from the first fortnight, tests on every change, and the integration built alongside, not after.
Release and keep
Store submission, monitoring, and a retainer sized to how much you want to own — including the platform updates nobody budgets for.
Who this is for
Public-sector field operations
Ministries, agencies and utilities whose people work away from a desk and need to capture the day reliably — procured through the Ontario Vendor of Record, built accessibly.
Platforms and consumer products
Organizations with an audience on every platform who need the clients to match, ship on a date, and keep working under load.
Organizations with a web app that needs to be an app
Businesses whose customers or staff want the thing in their pocket, with offline use and notifications, without a second and third codebase to maintain.
In the client's words
It's been a pleasure working with Imran and Cantan Group. Excellent service! Highly recommend.
Sami Siddique — Chairman, Founder and CEO, Cya LIVE
Because one codebase in Dart compiles to genuinely native iOS and Android apps and to the web, with a rendering engine that draws the same pixels on every platform, and because a team can own one codebase properly rather than three adequately. We will say when native is the right answer — deeply platform-specific hardware work, mostly — and it is rarer than people expect.
Does one codebase really cover iOS, Android and web?
Yes, with judgment: shared logic, model and design system, and platform-specific pieces where the platforms genuinely differ — notifications, permissions, some hardware. The Electronic Daily Flight Report serves every aircraft type and mission from one codebase; CYA Live’s Android client matched its web and iOS clients from the same API.
Can the app work offline?
It can be designed to, and field apps must be. The data model queues what happens, stores it locally, and reconciles when the network returns — with conflicts handled by rule rather than by whoever synced last. This is a design decision made in discovery, not a feature added later.
Are Flutter apps accessible?
They are when built to be: Flutter exposes semantics to VoiceOver and TalkBack, and everything else — contrast, text scaling, focus order, target size, motion — is ours to get right. We build to WCAG 2.1 AA wherever it applies and test with the screen readers, because the people who use the app have a right to.
Who owns the app and the store accounts?
You do. The code lives in a repository under your name, the App Store and Play Console accounts are yours, and we operate them on your behalf for as long as you want us to.
How is an app priced?
A fixed fee for a scoped build after discovery, with the number of screens, the offline model and the integrations as the main variables, and a retainer for releases, platform updates and new features. We would rather quote a smaller first release you can extend than a large one you have to trust.
