gdx-pay
A cross-platform In-App Purchase API for libGDX games, supporting Android, iOS, and web platforms.
What is gdx-pay?
gdx-pay is a cross-platform In-App Purchase API for libGDX, a popular Java game development framework. It provides a unified interface to handle purchases across Android, iOS, and web platforms, abstracting away the differences between payment services like Google Play, Amazon, Huawei, and Apple. This allows game developers to implement monetization features once and deploy their games everywhere without rewriting platform-specific purchase logic.
Game developers using libGDX who need to monetize their games through In-App Purchases on multiple platforms, including Android, iOS, and HTML5.
Developers choose gdx-pay because it eliminates the need to write and maintain separate purchase implementations for each platform, reducing development time and complexity. Its tight integration with libGDX ensures seamless compatibility, while its abstraction of platform-specific APIs provides a consistent and reliable purchase experience across stores.
Overview
A libGDX cross-platform API for InApp purchasing.
Use Cases
Best For
- Adding In-App Purchases to libGDX games targeting multiple app stores
- Implementing cross-platform consumable items like virtual currency or power-ups
- Selling one-time entitlements such as ad removal or premium content
- Managing subscriptions in games deployed on Android and iOS
- Handling purchase restoration when users reinstall games or switch devices
- Abstracting platform-specific payment APIs to simplify game monetization code
Not Ideal For
- Games not built with the libGDX framework
- Projects targeting only a single app store where direct API integration would be simpler
- Teams requiring advanced platform-specific payment features like detailed refund analytics or custom purchase flows not abstracted by gdx-pay
- HTML5 games needing server-side purchase validation without client-side JavaScript constraints
Pros & Cons
Pros
Abstracts multiple payment services (Google Play, Amazon, Huawei, Apple) into a single PurchaseManager interface, reducing code duplication across platforms as detailed in the supported services list.
Supports consumables, entitlements, and subscriptions through configurable Offer objects, demonstrated in the usage section with addOffer() calls for different types.
Provides purchaseRestore() methods with PurchaseObserver callbacks for handling transaction recovery, though the README notes iOS restrictions and offline limitations.
Seamlessly integrates with libGDX via Gradle/Maven dependencies and project structures, ensuring smooth adoption for existing libGDX developers.
Cons
Each payment service requires separate configuration and documentation, adding overhead as developers must refer to subproject readmes for platform-specific details.
Only covers listed services (Google Play, Amazon, Huawei, Apple); new or niche platforms may lack support, forcing custom implementations.
The README warns that Apple may reject apps if purchaseRestore() is called without user interaction, limiting automatic restoration flows and requiring careful handling.
Frequently Asked Questions
Related Projects
steamworks4jA thin Java wrapper to access the Steamworks API
gdx-gamesvcsEasy integration of gameservices in your libGDX game: Google Play Games, Apple Game Center, Amazon GameCircle and more
gdx-fireapplibGDX Firebase API
gdx-facebooklibGDX extension providing cross-platform support for Facebook Graph API.
Found a gem we're missing?
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.