Hire a Kotlin developer for your Android app

Why Kotlin for Android

Kotlin is fully supported by Google for Android development, with first class support in Android Studio, and Android's modern interface toolkit, Jetpack Compose, is built on it. Native Kotlin apps get direct access to the phone: background work, widgets, sensors, Bluetooth, camera and the newest Android features.

It is the right fit for an Android-first mobile app, for an app that connects to hardware, or when your users are mostly in places where Android dominates. If you need iPhone too, compare React Native and Flutter, or plan a second app in Swift.

Questions worth asking

• Do you build the interface with Jetpack Compose, and which Android versions will you support?
• How will you test on different screen sizes and on older phones?
• How do you handle background tasks and battery use?
• How do you prepare a release for Google Play, including the testing track?
• How do you protect user data stored on the phone?
• Which app on Google Play can I look at?

Android has many device makers. A careful developer talks about testing on several devices, not just one.

Typical project phases

A simple order that works for most first releases follows. Each milestone is funded before work starts and runs 1, 2, 3, 4, 6 or 8 weeks. The weeks in this example are for illustration, and developers set the length of each milestone in their proposal.

1. Foundation (for example, weeks 1 to 2): project setup, navigation, design components, a test build you can install.
2. Core flow (for example, weeks 3 to 5): accounts, data and the main feature of the app.
3. Device features (for example, weeks 6 to 7): notifications, location, camera or whatever your idea needs, tested on several phones.
4. Release (for example, weeks 8 to 9): store listing, closed testing with real users, fixes and launch on Google Play.

Milestones are from 50 to 2,000 each in your project currency. Larger phases can be cut into several milestones so that each stays within the limit and each can be approved on its own.

How matching treats Kotlin

Developers list technologies in two ways. Expert ini counts most, and Also works withi counts too. Your Kotlin project is scored against both, along with help type, project type, portfolio, budget fit and availability.

Scores run from 0 to 100 with plain reasons. A developer needs at least 40 to apply, and 80 or more shows a Top match badge. You compare proposals in score order.