An Android App Development Company That Starts From Your Device List
Android is not one platform. Any honest Android app development company will tell you it is a range of manufacturers, screen sizes, chipsets and vendor modifications, and the ones your users actually hold decide what gets built and what gets tested. That list is the first deliverable here, not an afterthought.
Get a Device List Drafted
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4.3
4.8Why the Device List Is the Most Important Document on an Android Project
On iOS the hardware range is narrow and known. On Android it is neither, and every estimate that ignores that is an estimate for a different project.
Two Android phones running the same OS version can behave differently, because manufacturers modify the system underneath. Background execution, notification delivery, battery optimisation and camera behaviour are the usual places it shows, and none of them reproduce on an emulator. A build tested only on a current flagship will work beautifully on a current flagship.
So the first thing established here is which handsets matter, taken from your own analytics rather than from a market share table. That list sets the testing effort, the minimum supported version and a meaningful share of the cost, and it is far cheaper to argue about at the start than to discover through one-star reviews mentioning a manufacturer nobody tested.
Products whose users are overwhelmingly on Android, which in several markets means almost everybody. Apps for staff who are issued rugged or budget handsets rather than flagships. Teams whose cross-platform build keeps failing on one manufacturer. Aipxperts asks for the device breakdown from your analytics first, because it usually reframes the conversation entirely.
If the native against cross-platform decision is still open · If the device testing is the whole problem
Who Maintains It After the First Release
Android work is never finished, because the device range keeps moving underneath it. These figures describe the firm that keeps up.
100+
Software Engineers
500+
Solutions Delivered
30+
Industries Served
95%
Client Retention
120+
Clients Worldwide
3
Unicorn Products
Android App Development Services You Can Commission Separately
Each of these is a standalone engagement, and each carries an Android-specific problem that decides whether it works on the handsets your users actually own.
Android Feasibility and Device Scoping
Our engineers take your analytics and work out which handsets, which OS floor, and what the awkward end of that range actually costs to support. You get the minimum supported version set as a commercial decision with reach and cost side by side, rather than a developer quietly picking a number.
Custom Android Application Development
Kotlin builds against your design, written by engineers who work to Android’s own conventions rather than porting an iOS interface across. We handle back navigation, sharing and permissions the way the platform expects, because an app that ignores them reads as foreign long before a user can say why.
Java Codebase Modernization
Give us an older application and we establish what it actually does, get it building on current tooling, then move it forward incrementally rather than through a rewrite nobody will fund. We work to Google’s target API deadlines, which is what turns a deferred modernisation into an urgent one.
Background Work, Notifications and Battery Behaviour
This is the part that breaks most often, and where our Android engineers spend the most time: each manufacturer restricts background execution differently and almost none of it is documented. We test against the vendors your users actually own, so the app cannot work on one battery optimisation and silently stop on another.
Device Testing on Physical Handsets
Our QA bench runs functional, performance, thermal and battery tests across the manufacturers and OS versions on your list, on real hardware. You get a record naming every device, because emulators do not reproduce vendor modifications and vendor modifications are where Android defects actually live.
Google Play Submission and Release Management
A named person here owns your store listing, data safety declaration, policy compliance and staged rollout, and handles a rejection if one arrives. We put crash monitoring in front of every phased release, which Play supports and most teams never set up.
Post-Launch Maintenance and Target Level Updates
Our maintenance bench keeps the app publishable as Google raises the required target level, alongside ordinary defect and dependency work. Miss that deadline and the app cannot be updated at all, so we track it against Google’s schedule rather than waiting for yours.
Android Apps We Built, and What Each One Had to Handle
The device list on each card is the interesting part. It tells you what the build was actually up against, which a feature summary never does.
Media and Entertainment
One Video Player, Two Ecosystems, Forty-One Differences Closed
Every platform team was building its own video player and the implementations drifted apart. One codebase now ships to React Native and Unity on the same native engines, with 41 parity differences closed.
Read case study: One Video Player, Two Ecosystems, Forty-One Differences ClosedEducation
Halving a Kids Streaming App From 162MB to 79MB Without Losing the Games
Install size was working against growth in the markets this children's platform was expanding into. The build came down from 162MB to 79MB with its embedded Unity games and offline downloads intact.
Read case study: Halving a Kids Streaming App From 162MB to 79MB Without Losing the GamesThe Product Owners Whose Android Apps We Released
The product owners whose Android apps we built and released describe the work in their own words.
We have worked with Aipxperts for more than 4 years now and continue to do so with most of our projects, ranging from web to app development. They provide excellent work and even better client servicing. Their costs are reasonable and we are happy to grow with them.
One of the best elancers ever. 100% committed to work. Communication was never an issue, kept me well informed. Went above and beyond what job involved, had received a lot of suggestions from them to make app experience even better. Surely will recommend them to everyone. My goto team for all future work.
Android Work by Industry, and What Each One Needs First
Sector predicts the device range better than anything else, and the device range predicts the cost. What gets built first differs just as much.
eCommerce
The widest consumer device range of any sector here, with a long tail of older mid-range handsets that convert perfectly well and perform badly. We build and optimise the browse and checkout path for that tail rather than for a flagship, because that is usually where the revenue actually sits. More on eCommerce.
Food delivery
Courier handsets are the oldest and hardest-used devices in any of these projects, and the courier app is the one that must not fail. We build the background location and battery behaviour first, then the customer app around it. More on food delivery.
On-demand platforms
Two apps with two completely different device profiles: customers on whatever they own, operators on issued hardware. We scope and test them as two support matrices rather than one, which is the mistake that usually surfaces after launch. More on on-demand platforms.
Mobile games
Performance, thermal behaviour and memory across a huge chipset range, where the failure is a hot phone and a flat battery rather than a crash report. Our engineers profile on real mid-range hardware and set the staged rollout up before a live-ops release, not after one goes wrong. More on mobile games.
Automotive and dealer networks
Driver and dealer applications run on handsets issued once and replaced rarely, on vendor-modified Android nobody upgrades. We build to the minimum version your fleet genuinely runs and keep the app updatable as Google’s target level moves. More on automotive and dealer networks.
Retail
Store-issued rugged devices alongside customer phones, and the rugged ones often run older Android with vendor modifications nobody documents. We test on the actual hardware in your stores rather than on an equivalent model, because equivalent is not the same thing here. More on retail.
Health and fitness
Continuous sensor collection and wearable pairing, which is exactly what manufacturer battery optimisation interferes with. We build and verify the per-vendor background behaviour, because that is the whole quality story in this category. More on health and fitness.
The Standing Commitments on Every Android Build
Commitments that shape what an Android app development company here is allowed to propose. One of them is where most Android quality problems are actually solved.
01The Google Play account stays in your nameRegistered to your company, paid by you, with us added as users. A supplier holding your store listing holds your reviews, your install base and your ability to update, whatever the intention behind the arrangement.
02Testing happens on physical handsets across manufacturersEmulators do not reproduce vendor modifications to background execution, notifications or battery management, and those are where Android apps fail. A supplier testing only on emulators will ship an app that works on their machine.
03Kotlin by default, Java where a codebase requires itNew work in the current toolchain. Where an existing application is in Java, we work in it incrementally rather than proposing a rewrite as an opening position.
04Target level updates are treated as mandatory maintenanceGoogle raises the required target API level on a schedule. Missing it means the app can no longer be updated on the store, which turns routine upkeep into an emergency. It goes in the maintenance arrangement rather than being raised when it bites.
05Where this stopsWe build, test and publish. We do not run store marketing or paid acquisition, and there is no engineering cover outside working hours for a launch weekend unless it is agreed and scheduled in advance.
What Android Fragmentation Actually Costs, and Where It Bites
Fragmentation gets described as a general difficulty. It is not general at all: it concentrates in four specific places, and knowing which ones apply to your app is most of the estimate.
Background execution, which is the big oneManufacturers restrict what an app may do when it is not in the foreground, and they do it differently and without documenting it. An app that syncs, tracks location or processes queued work will behave differently across vendors, and this is the single most common source of “it works on mine” defects.Notification deliveryRelated and separately painful. Some vendors delay or suppress notifications from apps they consider inactive, which is invisible in testing and obvious to a user who missed a delivery alert.Camera and media behaviourHardware and vendor implementations vary enough that a camera flow working on three devices can fail on a fourth. Anything scanning, capturing or processing images needs testing across the actual range rather than a representative sample.Performance, thermal and memory on the older mid-rangeThe devices most of your users own are neither new nor flagship. An application that performs acceptably on recent hardware can be unusable on a three-year-old mid-range handset, and no synthetic benchmark surfaces that.How the cost behavesNot linearly with device count. It steps at each additional manufacturer and each additional OS generation, because those are what introduce genuinely different behaviour. Two more handsets from a vendor already in the matrix cost very little. One handset from a new vendor costs considerably more.The decision worth making explicitlyThe minimum supported OS version is a commercial trade between reach and cost, and it should be made by somebody looking at both. We put the reach lost and the effort saved side by side so the decision is deliberate rather than inherited from a default.
The Android Toolchain Our Engineers Build and Ship With
Kotlin, the interface framework, the testing suite and the release tooling behind an Android build here. Where your own team maintains the app afterwards, we choose for what they can hire against and keep running rather than for what is quickest for us to write.
Core Android toolchain
The language, UI toolkit and build system every app is written against, kept current with each platform release rather than pinned to the version that shipped at kickoff.
Kotlin
Jetpack Compose
Java
Android Studio
Gradle
Material Design
Architecture and libraries
The structural layer that decides whether your codebase is still workable in year three, chosen for readability by developers who did not write it.
Kotlin
RetrofitOkHttp
RoomDaggerRxJava
Firebase
Testing and device coverage
How defects are found across the device spread your analytics actually show, rather than on the one handset in the office.
JUnit
AppiumFirebaseBrowserStack
Selenium
Release and CI
Signed builds, testing tracks and staged rollouts automated end to end, so a release is a pipeline run rather than an evening of manual steps.
Fastlane
Jenkins
GitHub
GitLabGradle
Docker
Backend and data
Where your app’s data and business logic live, sized for the traffic pattern and the offline behaviour the app needs.
Node.js
PythonJava
Spring Boot
PostgreSQL
MongoDB
RedisFirebase
GraphQL
Cloud and monitoring
Hosting, crash reporting and product analytics instrumented before launch so the first week produces a ranked fix list.
Amazon Web Services
Google Cloud
Microsoft AzureFirebase
Sentry
Datadog
Grafana
On-device intelligence
The frameworks we use when inference has to run on the handset for speed, privacy or offline reliability.
TensorFlow Lite
PyTorch
ONNX
OpenCV
Hugging Face
Where Our Android Clients Rate the Work
On Android work, look for a review that mentions a specific manufacturer. It means somebody tested beyond the obvious devices, and that is what separates these builds.
Store Accounts, Signing Keys and What the App Collects
Some of these have consequences that outlast the engagement and are worth confirming before the first release. Consent capture, data minimisation and working deletion flows are built into the app and its backend from the first sprint rather than retrofitted after a legal review, and analytics events are scoped so you are not shipping personal data you never intended to collect. Apps touching protected health information encrypt data at rest and in transit, restrict access by role and log record access. Work runs under NDA, and credentials stay in your accounts wherever possible.
GDPR consent and deletionHIPAA-aligned clinical buildsGoogle Play data safety declarationEncryption at rest and in transitTarget API compliance ahead of deadlineEU AI Act readiness reviewExplainable AI (XAI) practiceNDA before repository access
How an Android Build Runs, From Kotlin to the Play Store
The device list agreed at the start governs most of what follows, which is why it is the first deliverable rather than a detail settled later.
01Device list and OS floorHandsets and versions taken from your own analytics, with the reach and the cost of the awkward end shown side by side. This is what sets the testing effort, the minimum supported version and a real share of the estimate, so it is agreed before anything else is.02Platform conventions and interface decisionsNavigation, sharing, permissions and notification behaviour designed for Android rather than ported from an iOS build. This is what decides whether the app feels native, which affects retention more than any single feature.03Architecture and background work designHow the app behaves when it is not in the foreground, designed against the vendor restrictions that actually exist rather than against the documentation. This is where the defect class that produces most Android support tickets gets prevented.04Build in cycles on real hardwareWorking software demonstrated on handsets from the list, from the first cycle onward. Everything not on the list is a defect waiting for a user to discover, which is the honest reason the list matters so much.05Device matrix testingFunctional, performance, thermal and battery testing across manufacturers and versions. This is the stage that catches the vendor-specific failures, which is the whole point of the exercise.06Play submission and staged rolloutListing, data safety declaration, policy review, and a phased release with crash monitoring in front of it, so a regression reaches a fraction of your users rather than all of them.07Maintenance, target level and dependency currencyOngoing defect and dependency work, including the target API level updates Google requires to keep publishing. This is what decides whether the app is still updatable in two years, which is not a given.
Practical Questions on an Android Build
Cost and device range first, because that is where most Android surprises come from, then the platform questions.
Share your project vision
Tell us what you want to build. A specialist, not a salesperson, replies.
Get Your Android Build Scoped and Priced
Send the manufacturer, model and OS breakdown your analytics already holds. That one export reframes most Android conversations, because it usually shows a longer tail than anybody in the room expected, and Aipxperts sends back a proposed device matrix, an honest view on where the OS floor should sit, and what the awkward end of the range actually costs to support.
Send Your Analytics ExportNotes From the Play Console
Our engineers and consultants write up what they learn on live projects: architecture decisions, model evaluation results, and the trade-offs behind them. Written for the people who will implement them.
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