On-device payments
Keep the checkout inside the app for a fast card-present flow with a polished customer experience.
PAYMENT INTEGRATION PLATFORM
A smooth payment experience for on-device and off-device flows.
We present a Point of Sale (POS) application developed in Kotlin for the Android operating system. The system is available in two versions: an on-device version, which is installed directly on an Android-based payment terminal with a touchscreen, and an off-device version, which runs on a larger external display, such as an iPad, and connects to a payment terminal.
Android StudioGradleRoomTerminal flow
WHAT IT HELPS WITH
A clearer path from documentation to checkout.
Off-device terminal support
Pair with an external terminal when you need a stable, flexible setup in the field.
Clean Android integration
Work through a clear SDK structure, Room database, Gradle build, and modular docs.
Android
Kotlin
Compose
SQLite/Room⚔️Dagger
Ktor
LottieAndroidKotlinComposeSQLite/Room⚔️Dagger
KtorLottieHOW TO MOVE FORWARD
Use the docs as a guided flow, not a wall of text.
Start from the app docs
Follow the POS app documentation to set up Android Studio, Gradle, and the integration flow.
Choose your payment mode
Use on-device checkout for in-app payments or off-device terminal handling for external processing.
Integrate and scale the app
The integration layer is built to be POS-agnostic, allowing any POS application—such as Gardeco—to integrate it directly into its checkout system. It is designed to work seamlessly with the general app architecture, making it easy to extend and deploy across different environments.
NEXT STEP
Open the app docs and follow the integration chapters.
The app docs start with the intro page and then move into architecture, UI components, and database structure.