Native Android studio

Build Android apps that stay on the phone

We design offline-first Android apps in Kotlin and Jetpack Compose. No trackers, no advertising IDs, no hidden code.

  • Pure Android
  • Offline first
  • No ad IDs
Reef Links
Offline readyZero trackersMaterial 3 UI
12:30
Reef Links
Streak7
This week

Our app

Reef Links

Reef Links follows our recipe: native, fast to open, and quiet about your data.

  • Works offline
  • Stores data locally
  • Requests only needed permissions
  • No accounts, ads, or analytics
  • Android
  • Offline first
  • No ad IDs
  • Kotlin
Read the privacy policy
  • Pure Android
  • Kotlin
  • Jetpack Compose
  • Offline first
  • Accessibility
  • Privacy built in

Our craft

From sketch to launch, we handle every Android detail with care.

  1. Native Android apps

    Kotlin from day one. Apps run smoothly on modest devices.

  2. Compose UI

    Declarative screens with Material 3 and adaptive layouts.

  3. Local data first

    Room and DataStore keep data on the device, even in flight.

  4. Battery aware

    We profile startup and background work, respecting Android Vitals.

  5. Inclusive design

    TalkBack labels, high contrast, and large‑text support are default.

  6. Long‑term support

    Signed builds, staged Play rollouts, and regular updates.

Tools we trust

A minimal toolbox that keeps code clean and maintainable.

Kotlin

Kotlin provides concise, null‑safe code.

Coroutines & Flow

Coroutines & Flow handle async without callback hell.

Jetpack Compose

Jetpack Compose builds adaptive UI for phones and tablets.

Room

Room offers a typed local database for offline storage.

WorkManager

WorkManager runs reliable background jobs within battery limits.

Hilt

Hilt injects dependencies, keeping modules testable.

Gradle CI/CD

Gradle CI/CD runs repeatable builds and checks on every change.

Play Console

Play Console manages staged rollouts and release metrics.

Our workflow

Four clear steps from call to ongoing care. You see the result at each stage.

  1. Discovery

    Define the problem, users, and strict privacy rules.

  2. Architecture

    Sketch screens, data flow, and permissions before code.

  3. Build

    Write Kotlin, Compose UI, and tests; deliver small installable builds.

  4. Release & care

    Stage rollout on Play, monitor vitals, and ship updates.

ScreenComposeReducerintent → stateUseCasedomain rulesDataRoom · files

One-way data flow: the interface observes state, and the repository owns the data.

Our pledge

Four non‑negotiable rules guide every project.

0trackers in our apps
0advertising IDs used
100%of app data kept on the device
1platform we build for

Zero tracking

We never add analytics, ad SDKs, or fingerprinting.

On‑device first

All data stays on the phone by default.

Battery respect

Background work is measured and kept minimal.

Accessible UI

Interfaces work with TalkBack, large text, and proper contrast.

Plain terms

What we do

  • Create native Android apps in Kotlin
  • Store user data locally
  • Explain each permission clearly
  • Provide post‑release support

What we never do

  • Sell or share personal data
  • Add ad IDs or tracking SDKs
  • Hide behavior behind vague policies
  • Ship unrequested features

Questions, answered

Brief answers about our process.

What does GARCI LTD do?

We design, build, and maintain native Android apps focused on offline use and privacy.

Which platforms do you support?

Android only. We specialize in a single platform.

What do you do with user data?

Data stays on the device. No analytics, no ads, no selling.

How can I contact you?

Email tro.nghuyh154@gmail.com or use the form on this page.

Do you support apps after release?

Yes. We deliver fixes, adapt to new Android versions, and keep dependencies fresh.

Studio details

GARCI LTD is an Android development studio. Meet the people behind the code.

Start a conversation

Tell us about your project. Your email client will open with a ready‑to‑send message.

tro.nghuyh154@gmail.com

Privacy, in short

Our apps collect no personal data, use no ad IDs, and contain no third‑party trackers. Everything stays on your device. See each app’s full policy below.

  • No personal data collected
  • No advertising ID
  • Delete the app, delete your data