Keen as Mustard
- Scope
- Flutter dating app, React landing page, React + Node.js admin panel and Node.js backend
- Delivery
- 100+ screens, 6-person team, delivered on time in 6 months
Services
Flutter app development: one codebase for iOS and Android
WakeUp Monster is a Flutter app development company in Indore, India, for founders who have chosen Flutter or are deciding whether it suits their app. We write one Dart codebase for iOS and Android, pair it with Node.js, Laravel or Firebase backends, and test it through TestFlight and Google Play Internal Testing. Our largest Flutter build, Keen as Mustard, has 100+ screens and 50+ API endpoints.
Discuss Your ProjectBy the WakeUp Monster team · Updated
- Framework
- Flutter (Dart), one codebase for iOS and Android
- Largest Flutter build
- 100+ screens and 50+ API endpoints (Keen as Mustard)
- Backends we pair it with
- Node.js, Laravel, Firebase and AWS
- Test builds
- TestFlight (iOS) and Google Play Internal Testing (Android)
- Typical delivery
- 3-6 months, depending on scope
Why do we build mobile apps in Flutter?
We build in Flutter because one codebase gives you an iOS app and an Android app that look and behave the same, built and tested by one team. For a startup, that means one set of screens to design, one set of features to test and one release to plan.
Flutter is Google's open-source UI framework. Apps are written in Dart, and Flutter draws its own interface rather than relying on each platform's built-in components. In practice, the custom design your designer signs off in Figma is what users see on both an iPhone and an Android phone, without a second team rebuilding it.
It also keeps the project easier to manage. Your user stories, design files, sprint plan and QA checklist all describe one product, not two. When a feature changes mid-project, it changes once. On Keen as Mustard, the full rebrand partway through development was applied to one set of screens rather than two.
This page is about Flutter as the framework. If you have not chosen a framework and need the whole product built end to end, start with our mobile app development service, which covers discovery, design, build and launch. Flutter is not the only good option either. If you are still choosing a framework, our guide to Flutter vs React Native compares the two honestly, including when React Native is the better pick.
What's included in a Flutter project?
Flutter is the app layer, and a project also needs the design, backend and launch work around it. The list below is what our delivered Flutter apps actually included.
- Discovery call with the founder, then a proposal and user story document within 3-5 days
- UI/UX design for every screen in Figma, signed off before any code is written
- The Flutter app for iOS and Android from one Dart codebase
- Backend and REST APIs in Node.js or Laravel, with Firebase and AWS where they fit
- A React + Node.js admin panel for your team (both of our Flutter case studies have one)
- Integrations from delivered work: RevenueCat subscriptions, Google Maps, Firebase analytics and push notifications, real-time chat
- A landing page in React when you need one before launch
- App Store and Google Play submission, handover documentation and post-launch support
If you only need part of this, such as the app on top of an existing backend, we scope that instead. The backend side is covered in more detail on our backend development page.
Which Flutter apps have we delivered?
We have two detailed Flutter case studies: Keen as Mustard, a Sydney dating app, and Lalah, a halal food discovery app from Melbourne. Both were built as complete products with an app, landing page, admin panel and backend.
| Project | What it is | Screens | Team | Timeline | Status |
|---|---|---|---|---|---|
| Keen as Mustard | Dating app for Australians, with discounted real-world experiences after a match | 100+ | 6 people | 6 months, on time | Delivered; the client paused the store launch for personal reasons |
| Lalah | Community-driven halal food discovery app for Australia's Muslim community | Around 40 | 5 people | 4 months | Development complete and ready for launch; on hold after the client's investor pulled out |
Keen as Mustard is our largest Flutter build. It includes discovery and passport modes, keen and super keen likes, real-time chat, premium subscriptions through RevenueCat, contact blocking that hides you from people in your phone contacts, and dual verification with a live selfie scan and government ID match. Before launch, its React landing page collected 500+ pre-launch signups.
Lalah is a smaller app with a different shape: a Google Maps map and list view of restaurants, restaurant pages with photos, menus and reviews, one-tap directions and calling, location-based prayer times, and community restaurant submissions that an admin reviews before they go live. Rajat Khoware, our founder, built the Lalah Flutter app himself.
"We have truly enjoyed this project so much and learnt a great deal from you during this process. We cannot talk highly enough about you and have thoroughly enjoyed working with you." Josie, Co-Founder, Keen as Mustard, Sydney, Australia
How do you test a Flutter app before launch?
We test in stages, and you hold real builds on your own phone throughout development, not only at the end. These are the steps every Flutter project goes through.
- 01
Internal QA during each sprint
Our team runs structured QA on each feature and fixes edge cases before the build reaches you.
- 02
TestFlight and Play Internal Testing builds
We share builds through TestFlight for iOS and Google Play Internal Testing for Android, alongside weekly progress updates.
- 03
Wider internal testing on large builds
On our largest build, Keen as Mustard, 546 internal testers used the TestFlight and Play Internal Testing builds during development.
- 04
Client testing on your own device
You test the app on your own device and give feedback before it is submitted to the stores.
- 05
Store submission and handover
We prepare and submit the App Store and Google Play releases, then hand over documentation and move into post-launch support.
Is Flutter right for your app?
Flutter suits most startups that need a custom-designed app on both iOS and Android. It is worth a closer look if your team is already built around React or your app depends on a platform-specific capability.
| Flutter is a good fit when | Discuss alternatives in discovery when |
|---|---|
| You need iOS and Android at the same time | You only ever plan to ship on one platform |
| You want a custom brand and UI, not stock platform screens | Your in-house developers work in React and will maintain the app themselves |
| One team should own design, app and backend together | The core feature depends on a platform-specific capability that needs a separate assessment |
| You want to test real builds on your phone during delivery | You need an app built entirely in native Swift or Kotlin |
We raise this on the first call. If Flutter is not the right fit for your product, we say so before you commit to anything.
Relevant project proof
Lalah
- Scope
- Flutter food discovery app, React landing page, React + Node.js admin panel and Node.js backend
- Delivery
- Around 40 screens, 5-person team, development complete in 4 months
A good fit when
- •You need one app on iOS and Android at the same time.
- •You want a custom-designed product rather than a template app.
- •You want to test real builds on your own phone during delivery.
- •You want the app, backend and admin panel built by one team with one point of contact.
Frequently asked questions
What is the largest Flutter app you have built?
Keen as Mustard, a Sydney dating app, is WakeUp Monster's largest Flutter build: 100+ screens backed by a Node.js API with 50+ endpoints, with real-time chat, RevenueCat subscriptions and dual verification. A 6-person team delivered it on time in 6 months, including a full mid-project rebrand. The client then paused the store launch for personal reasons.
Can Flutter apps use subscriptions, maps and push notifications?
Yes. WakeUp Monster has delivered Flutter apps with RevenueCat subscriptions (Keen as Mustard), Google Maps map and list views (Lalah), Firebase analytics and push notifications (Lalah) and real-time chat (Keen as Mustard). We confirm the integrations your product needs during discovery and list them in the proposal.
Which backends work with a Flutter app?
Flutter is the app layer, so it works with any backend that exposes an API. WakeUp Monster pairs Flutter apps with REST APIs in Node.js or Laravel, Firebase for real-time features, analytics and push notifications, and AWS for hosting. Keen as Mustard runs on a Node.js backend with 50+ endpoints; Lalah uses Node.js with Firebase and the Google Maps API.
Will my Flutter app look the same on iPhone and Android?
Largely, yes. Flutter draws its own interface instead of using each platform's built-in components, so the screens your designer signs off in Figma are what users see on both phones. We still check every build on iOS and Android through TestFlight and Google Play Internal Testing, because each platform has its own system prompts and store rules.
Do I need to know Flutter or Dart to work with you?
No. WakeUp Monster's team writes the Dart code. You review the Figma designs, install test builds on your own phone and sign off milestones, none of which needs any coding. At handover you receive documentation of the app and its backend, so a future developer, in-house or from another team, can pick up the Flutter codebase.
Do you take over existing Flutter projects?
Sometimes. WakeUp Monster reviews the existing Flutter and Dart codebase first and tells you honestly what state it is in and whether we should continue it, fix parts of it or start again. We only commit to a plan once we have seen the code and agreed the scope with you.
Keep exploring
Mobile app development servicesFor founders who need the whole product built, whatever the framework.Flutter vs React NativeAn honest comparison to help you pick a cross-platform framework.Backend developmentAPIs, admin panels, Firebase and AWS for your Flutter app.Dating app developmentWhat we learned building Keen as Mustard in Flutter.Food discovery app developmentMaps, listings and community submissions, as built for Lalah.App UI/UX designFigma design for every screen before development starts.
Available worldwide
Planning a Flutter app?
Book a free discovery call with our founder, Rajat Khoware. You will get a proposal with scope, timeline, milestones and user stories within 3-5 days, and an honest view on whether Flutter fits your product.
Discuss Your Project