The article
If most of your customers use Android phones, or your crews carry them at work, the app starts on Android. Choosing an Android app development company then comes down to more than the code. It comes down to the path to those phones: which models and system versions the app is tested on, whose Google Play account it goes out from, and who fills in the forms Google requires before anyone can install it.
In October 2026 I read the Android pages of five companies that Google shows for app development searches. Four mention Google Play, and only one mentions signing the app. None mentions the Data safety form that every app on Google Play must complete, or the testing tracks a build passes before it reaches everyone, and one shows four Android cases that all turn out to be website designs. Five pages are a small sample, so read it as a list of things to ask.
I have spent 18 years in software development. At 26 Lines of Code we design Android apps, write them in Kotlin with Jetpack Compose, build the backend and admin panel behind them and publish them on Google Play, where three of our apps are live. Below: what we build, two ways to work with us, the path to Google Play, a self-check for choosing a team, and the cost.
Android app development: the short version
| Question | Answer |
|---|---|
| Price | A first version from $5,000; the screens and the integrations set the rest, and the estimate is free |
| Code | Native Kotlin with Jetpack Compose, or one Flutter or React Native app for Android and iPhone |
| Behind the app | An API, a database and an admin panel on Django or FastAPI, or your current backend |
| Integrations | Payments, messages and sign-in through Stripe, Twilio and Auth0 |
| Testing | Different Android versions and screen sizes |
| Release | The Google Play listing, the review and each update |
| Progress | A working build to try on your own phone every two weeks |
| Ways to work | We run the whole project, or our Android developers join your team from $35 an hour |
| Contract | With our US company in Miami |
Android only, or Android and iPhone
Android alone fits when your users are mostly on Android; if your website has analytics, it already shows which phones your visitors carry. If your customers use both, one Flutter or React Native codebase can serve both stores, so a feature or a fix reaches both in the same release: see hybrid app development. If Android goes first and the iPhone follows, the second app can be written in Swift on the same backend; that is our iOS app development.
What our Android application development services cover
Custom Android app development, built around how your business works rather than adapted from a template, includes:
- Screens designed for the Android phones your customers use.
- Native code in Kotlin with Jetpack Compose.
- An API, a database and an admin panel behind the app, or a connection to the backend you already run.
- Payments, messages and sign-in through Stripe, Twilio and Auth0.
- Testing on different Android versions and screen sizes.
- The Google Play listing, the release and each update.
Why Kotlin and Jetpack Compose? Kotlin is the language Google recommends for Android, and Jetpack Compose is its current toolkit for building screens. An app built on them stays close to the platform and is easier to update as Android changes.
Two ways to work with us
An Android mobile app development company can either deliver the app or lend you the people to build it. We do both:
| Your situation | What fits |
|---|---|
| No Android team, and you want a finished app | Outsource the app. We run discovery, design, development, QA and DevOps, on a fixed scope or by time and materials |
| An Android lead and a backlog, but not enough hands | Add Android developers. They join your team, follow your process and report to your lead, from $35 an hour (staff augmentation) |
| Not sure yet | A short call settles it; the trade-offs are in outsource or outstaff |
On a fixed scope, the agreed price is the ceiling for the agreed work, and anything new is estimated and approved by you before we build it. Time and materials suits a product whose scope will move as you learn from its first users.
The path from a call to Google Play
Our Android app development services run in five steps:
- A call: who the app is for, what it has to do and what it connects to.
- A rough estimate of cost and time, free.
- The contract with our US company: scope, budget and timeline.
- Discovery: the final requirements, the screen design and the technical approach, settled before the build.
- Sprints and release: a working build to try every two weeks, then the Google Play release and support.
Google Play adds steps of its own to the last one, and each is worth knowing before launch:
- Testing tracks. A build goes to a testing track before production. The internal track reaches up to 100 testers within minutes, so you install every build on your own phone; closed and open tests widen the circle.
- The Data safety form. Every app on Google Play completes it, even one that collects nothing, and it must cover the data the app's SDKs collect too. Google shows it on the listing before people install.
- App signing. Google keeps the key that signs the app on people's phones; the team uploads builds with a separate upload key. If that key is lost, the account owner can ask Google to reset it in Play Console.
- Staged rollouts. An update can reach a share of users first, and the rollout can be halted if a problem shows up.
Choosing an Android app development company: a self-check
Put these questions to any Android application development company, ours included, and keep the answers in writing:
| Question | A good answer | A warning sign |
|---|---|---|
| Can I install three of your Android apps from Google Play now? | Links to live apps | Mockups, or "Android" cases that turn out to be websites |
| Whose Google Play account will the app go out from? | Yours: an organization account in your company's name | The developer's own account |
| Which Android versions and screen sizes do you test on? | A list built from your customers' phones | "It works on my phone" |
| Who fills in the Data safety form, SDKs included? | A named person, before the first release | Nobody has heard of it |
| Is the backend in the estimate? | The API, the database and the admin named in the scope | "The server is your problem" |
| How will updates reach users? | A testing track first, then a staged rollout | Straight to everyone |
| Who keeps the app on Google's current target API level? | It is named in the support plan | No answer |
The account question has a lead time. An organization account needs a D-U-N-S number, which Google says is free and can take up to 30 days to get; the registration fee is a one-time $25. A personal account created after 13 November 2023 must first run a closed test with at least 12 testers for at least 14 days in a row, and only then may it apply for production access.
The target API level moves as well. Since 31 August 2026, new apps and updates on Google Play must target Android 16, and an existing app that targets Android 14 or lower is offered only to phones running that version or older.
What an Android app costs
A first version starts at $5,000; the screens and the integrations set the rest, and the estimate for your app is free and comes before any contract. Google's one-time $25 registration fee is paid by you, to Google. Android developers for your own team start at $35 an hour. Every starting price is on our pricing page.
Our Android apps on Google Play
The best proof a custom Android app development company can offer is an app you can install, so here are ours:
- SaneBox, USA. We designed and built the Android app of an AI email assistant, in Kotlin and Jetpack Compose with Material Design. Every SaneBox feature had to work on the phone the way it works on the web: the digest, training a sender with one tap, BlackHole, Snooze and attachments. The API client is generated from SaneBox's OpenAPI description, so the app follows the service as it changes, and push notifications through Firebase Cloud Messaging bring people back when something needs them.
- Tarot Fans, France. One Flutter app for clients and experts with a Django backend. Live sessions, audio and video calls and chat run on Agora, each with its own price per minute, and a Stripe wallet keeps every balance straight while money moves both ways. The hard part was giving two roles different homes in one app, with every screen making sense for both.
- Mutualz, Germany. A restaurant app on Google Play and the App Store in German and English, built once in Flutter on a Node.js backend on AWS.
Who you work with
Your app gets a team with names, not a ticket queue: the Android developers, designers and QA engineers who build it answer you directly. Behind them stand 70+ specialists, 150+ projects delivered since 2017 and a 5.0 rating on Clutch from 26 verified reviews (as of September 2026), without one negative review. Our delivery center near Kyiv is usually seven hours ahead of Miami, so a question you send over breakfast arrives during its working day.
Everything we build for phones is under mobile app development, and the case for two separate apps is on native app development. After launch, mobile app maintenance keeps the app current with new Android versions and Google Play rules. Describe the users and the main features, and we reply with questions and a free rough estimate: on weekdays from 9 am to 6 pm Miami time, within 30 minutes.
