Native Android apps built for 3 billion devices.
Custom Android applications using Kotlin and Jetpack Compose — native performance, Material Design 3, and the full Android ecosystem. Built by engineers who know the platform.
Your App
Business · Tools
Device compatibility
API 24+ device coverage
“Zero crashes at launch. Kotlin codebase is clean and testable.”
— Verified Play Store review
3B+
Device reach
Kotlin
+ Compose
Play Store Rating
Avg. across 20+ shipped Android apps
20+
Apps on Play Store
Android 7+ · API 24+
4.6★
Avg Store Rating
Across published apps
98%
Device Compatibility
API 24+ covers 98% of devices
0
Policy Violations
Play Store — ever
We deploy to
Google Play Store
Android 7.0+ (API 24)
Play Store Beta Track
Closed / open testing
Enterprise APK Sideload
Private distribution
Problems we solve before they ship
App Looks Broken on Half Your Users' Devices
Android runs on 24,000+ device models across 8 active OS versions. An app tested on two Pixel phones ships with untested layout breaks on Samsung, Xiaomi, Oppo, and OnePlus — which cover 80% of real-world installs.
Our fix
We maintain a device test matrix across major OEM skins and screen densities. Every release is tested on real physical hardware before it reaches the internal testing track.
Android done the right way
Kotlin + Jetpack Compose
Modern Android stack. Compose UI is faster to build and more maintainable than XML layouts — less code, same native performance, smooth 60fps rendering.
Security by Default
Biometric auth, encrypted local storage (Room + SQLCipher), certificate pinning, and Play Integrity API for tamper detection and device attestation.
FCM Push Notifications
Firebase Cloud Messaging with rich notifications, notification channels, deep-link routing, and delivery tracking — configured from day one.
Offline-First Architecture
Apps that work without internet. Local-first data with Room, background sync when connectivity returns — no loading spinners frustrating your users.
Background Services
WorkManager for reliable background tasks, location tracking, file downloads, and scheduled operations — guaranteed execution even when the app is closed.
Play Store Deployment
App signing, store listing optimization, staged rollout strategy, and in-app review prompts. We handle the launch mechanics — you collect the installs.
Spec → Design → Build → Play Store
From device strategy to staged Play Store rollout — transparent sprint delivery.
Discovery & Device Strategy
Target device matrix, Android version support decisions, permissions strategy, and feature prioritization. We identify every Play Store policy requirement upfront — no surprises during review.
Material 3 Design & Prototype
High-fidelity Figma screens designed to Material Design 3 guidelines. Adaptive layouts tested across common device sizes and OEM skins before engineering begins.
Kotlin Development & Testing
MVVM + coroutines + Flow. Unit tests with JUnit, UI tests with Espresso. Code review on every PR. Firebase Crashlytics from sprint one. Play Store internal track builds every two weeks.
Play Store Launch & Growth
Internal → closed testing → staged production rollout with Play Console monitoring. ASO-optimized metadata, graphic assets, and data safety declaration. Crashlytics monitoring through launch.
Technology
The full Android stack, end to end
Kotlin
Jetpack Compose
Android Studio
Fastlane
Firebase
Supabase
Node.js
PostgreSQL
GraphQL
RevenueCat
Figma
Every Android engagement ships with all of this
Eight production deliverables, standard. Not upsells — these ship with every project because cutting any one of them creates post-launch debt.
Full Source Code
Kotlin + Jetpack Compose with complete Git history
MVVM Architecture
Clean layers — ViewModel, Repository, DataSource
Room + Retrofit
Local DB and API client wired and tested
Firebase Crashlytics
Crash monitoring live from sprint one
ProGuard / R8 Rules
Release build verified — no debug/prod divergence
Play Store Submission
Data safety declaration + staged rollout
Device Matrix Report
QA across major OEMs and screen densities
30-Day Support
Post-launch engineer on-call — no hand-off cliff
Questions we get all the time
If yours is not here, reach out. We respond within 24 hours with a real answer from an engineer — not a sales pitch.
We target Android 7.0 (API 24) and above by default, covering 98%+ of active devices. Support for older versions adds meaningful complexity — we'll give you a clear trade-off breakdown if you need it.
Kotlin. Java is legacy Android. Kotlin is the official Android language, actively developed by JetBrains and Google, and required for Jetpack Compose. All new code is Kotlin.
Yes. We're full-stack. Node.js, Go, or Firebase alongside the app, or integration with your existing API. API contract is designed from the start — both sides move in sync.
An MVP with auth, core features, backend integration, and Play Store submission takes 8–14 weeks. Complex apps with real-time features, payments, or heavy offline sync take 16–24 weeks.
A focused Kotlin/Jetpack Compose MVP typically runs $25,000–$60,000, while a feature-rich app with payments, offline sync, background services, and a backend ranges $60,000–$130,000+. We scope a fixed price after the device-strategy and discovery phase so there are no open-ended hourly surprises.
Android runs on 24,000+ device models across many OEM skins, so we maintain a device test matrix covering Samsung, Pixel, Xiaomi, OnePlus, and Oppo across multiple screen densities and OS versions. Every release is tested on real physical hardware — not just emulators — and we specifically validate Doze mode and OEM battery-killer behavior before it reaches the Play Store.
Yes — entirely. App signing, store listing and ASO, graphic assets, the Data Safety declaration, and staged rollout through the Play Console are all handled by us. We audit permissions and deprecated APIs on every release and track Google's quarterly policy updates proactively, which is why we've never had a Play Store policy violation.
Yes — you own 100% of the Kotlin source code with full Git history, and the app is published under your own Google Play Console account so installs, reviews, and revenue belong to you. There's no vendor lock-in: another team can pick up a clean MVVM codebase with documented ProGuard/R8 rules at any time.
“Ethersofts took over a project two agencies fumbled. They untangled the mess, rebuilt critical parts, and shipped in 6 weeks. The codebase is clean and our users actually like it now.”
Rajan Mehta
CTO · Credflow Technologies · Bangalore, India
Ready to reach 3 billion Android users?
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