💲Billing Services
Cross-platform in-app purchase system for Unity mobile games with consumables, non-consumables, subscriptions, and transaction management
Essential Kit's Billing Services feature lets Unity teams monetize mobile games with in-app purchases without maintaining platform-specific code. This tutorial walks you through setup, key APIs, testing, and troubleshooting so you can add consumables, non-consumables, and subscriptions with confidence.
What You'll Learn
Configure products in Essential Kit Settings and platform stores (App Store Connect, Google Play Console)
Initialize the store connection and retrieve localized product pricing
Purchase products and handle transaction states (success, failure, deferred, restored)
Restore purchases for non-consumables and subscriptions
Finish transactions and manage pending purchases (advanced server verification)
Why Billing Services Matters
Revenue Generation: Primary monetization driver for mobile games with secure, native purchase flows
Cross-Platform Consistency: Single API works across iOS App Store and Google Play Store
Security Built-In: Local receipt verification on iOS (StoreKit2), optional server verification for Android
App Store Compliance: Automatic platform setup with restore functionality required by Apple guidelines
Tutorial Roadmap
Setup - Configure products in Essential Kit Settings and platform stores
Usage - Initialize store, purchase products, restore purchases, handle transactions
Testing - Test with sandbox accounts and validate on devices
FAQ - Troubleshoot common purchase and configuration issues
Key Use Cases
Sell Virtual Goods
Use consumable products to sell in-game items like coins, gems, lives, or power-ups that players can purchase repeatedly. Offer multiple value tiers ($0.99, $4.99, $9.99) to maximize revenue across different player segments.
Premium Upgrades
Sell permanent features with non-consumable products like ad removal, character unlocks, or premium level packs. Once purchased, these items are owned forever and automatically restored across devices.
Subscriptions
Implement VIP memberships, battle passes, or season passes with recurring billing. Offer flexible durations (weekly, monthly, yearly) with introductory offers and free trials to increase conversion.
Multi-Currency Systems
Support multiple virtual currencies (coins, gems, tickets) using payout definitions. A single purchase can grant multiple currency types for complex economy systems.
Remove Ads
Offer an ad-free experience with a non-consumable product. Use IsProductPurchased() to check ownership status and hide ads permanently for paying users.
Prerequisites
Unity project with Essential Kit v3 installed and Billing Services feature included in the build
iOS: App Store Connect account with products configured and banking information complete
Android: Google Play Console account with products configured and app uploaded for testing
Test device or sandbox accounts to validate purchases before release
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