Plugin.InAppBilling 8.0.3-beta

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
This is a prerelease version of Plugin.InAppBilling.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package Plugin.InAppBilling --version 8.0.3-beta                

                    
                

            
NuGet\Install-Package Plugin.InAppBilling -Version 8.0.3-beta
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Plugin.InAppBilling" Version="8.0.3-beta" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add Plugin.InAppBilling --version 8.0.3-beta                

                    
                

            
#r "nuget: Plugin.InAppBilling, 8.0.3-beta"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
// Install Plugin.InAppBilling as a Cake Addin
#addin nuget:?package=Plugin.InAppBilling&version=8.0.3-beta&prerelease

// Install Plugin.InAppBilling as a Cake Tool
#tool nuget:?package=Plugin.InAppBilling&version=8.0.3-beta&prerelease

In-App Billing Plugin for .NET MAUI and Windows

A simple In-App Purchase plugin for .NET MAUI and Windows to query item information, purchase items, restore items, and more.

Subscriptions are supported on iOS, Android, and Mac. Windows/UWP/WinUI 3 - does not support subscriptions at this time.

Important Version Information

  • v8 now supports .NET 8+ .NET MAUI and Windows Apps.
  • v7 now supports .NET 6+, .NET MAUI, UWP, and Xamarin/Xamarin.Forms projects
  • v7 is built against Android Billing Library 6.0
  • See migration guides below

Documentation

Get started by reading through the In-App Billing Plugin documentation.

NuGet

Platform Support

Platform Version
iOS for .NET 10+
macCatlyst for .NET All
tvOS for .NET 10.13.2
Android for .NET 21+
Windows App SDK (WinUI 3) 10+
.NET MAUI All

Created By: @JamesMontemagno

Version 7 Major Updates

  • Android: You must compile and target against Android 12 or higher (or Android 13 if v7.1)
  • Android: Now using Android Billing v6
  • Android: Major changes to Android product details, subscriptions, and more
  • Android: Please read through: https://developer.android.com/google/play/billing/migrate-gpblv6
  • Android: AcknowledgePurchaseAsync is now FinalizePurchaseAsync
  • All: There are now "Extras" for all products that give you back tons of info for each platform

If you receive an error in Google Play you may need to add this to your AndroidManifest.xml inside the application node:

<meta-data
  android:name="com.google.android.play.billingclient.version"
  android:value="6.0.1" />

Pending Transactions:

  • If the result of PurchaseAsync is PurchaseState.PaymentPending, store the order details locally and inform the user that they will have access to the product when the payment completes
  • When the user starts the app (and/or visits a particular page), if the stored PurchaseState is PaymentPending, call GetPurchasesAsync and query the result for a purchase that matches the stored purchase.
  • If the PurchaseState for this purchase is still PaymentPending, show the same no-access message
  • If the PurchaseState is Purchased, call ConsumePurchaseAsync or AcknowledgePurchaseAsync, depending on the product type

To respond to pending transactions you can subscribe to a listener in your Android project startup:

// Connect to the service here
await CrossInAppBilling.Current.ConnectAsync();

// Check if there are pending orders, if so then subscribe
var purchases = await CrossInAppBilling.Current.GetPurchasesAsync(ItemType.InAppPurchase);

if (purchases?.Any(p => p.State == PurchaseState.PaymentPending) ?? false)
{
  Plugin.InAppBilling.InAppBillingImplementation.OnAndroidPurchasesUpdated = (billingResult, purchases) =>
  {
       // decide what you are going to do here with purchases
       // probably acknowledge
       // probably disconnect
  };
}
else
{
  await CrossInAppBilling.Current.DisconnectAsync();
}

If you do connect the IsConnected propety will be true and when you make purchases or check purchases again you should check ahead of time and not re-connect or disconnect if there are pending purchases

I highly recommend reading the entire Google Play Billing System docs.

Consumable vs Non-consumables on Android

On Android if you purchase anything you must first Acknowledge a purchase else it will be refunded. See the android documentation.

https://developer.android.com/google/play/billing/integrate#process https://developer.android.com/google/play/billing/integrate#pending

For consumables, the consumeAsync() method fulfills the acknowledgement requirement and indicates that your app has granted entitlement to the user. This method also enables your app to make the one-time product available for purchase again.

So, if you have a consumable... ConsumePurchaseAsync will also acknowledge it, if you have a non-consumable you will need to call AcknowledgePurchaseAsync.

Version 4+ Linker Settings

For linking if you are setting Link All you may need to add:

Android:
Plugin.InAppBilling;Xamarin.Android.Google.BillingClient
Android Progaurd Rules
-keep class com.android.billingclient.api.** { *; }
-keep class com.android.vending.billing.** { *; }
iOS:
--linkskip=Plugin.InAppBilling

License

The MIT License (MIT), see LICENSE file.

Want To Support This Project?

All I have ever asked is to be active by submitting bugs, features, and sending those pull requests down! Want to go further? Make sure to subscribe to my weekly development podcast Merge Conflict, where I talk all about awesome Xamarin goodies and you can optionally support the show by becoming a supporter on Patreon.

Product Compatible and additional computed target framework versions.
.NET net8.0-android34.0 is compatible.  net8.0-ios17.5 is compatible.  net8.0-maccatalyst17.5 is compatible.  net8.0-macos14.5 is compatible.  net8.0-windows10.0.19041 is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (6)

Showing the top 5 NuGet packages that depend on Plugin.InAppBilling:

Package Downloads
Zebble.Billing

Zebble IAP plugin for Xamarin.
VerticesEngine.Android

The Android port of the Cross Platform Vertices Engine.
VerticesEngine.iOS

The iOS port of the cross platform engine Vertices Engine
ContactManager.Core

Package Description
RedCorners.IAP

In App Purchase Plugins

GitHub repositories (2)

Showing the top 2 popular GitHub repositories that depend on Plugin.InAppBilling:

Repository Stars
jamesmontemagno/app-ac-islandtracker
Animal Crossing Island Tracking Mobile App
jamesmontemagno/MyStreamTimer
A cool app to count up or down that writes text to file for streamers
Version Downloads Last updated
9.0.2-beta 270 10/18/2024
9.0.1-beta 130 10/8/2024
9.0.0-beta 77 10/3/2024
8.0.5 1,908 10/18/2024
8.0.5-beta 96 10/18/2024
8.0.4 552 10/3/2024
8.0.3-beta 364 8/9/2024
8.0.2-beta 159 7/23/2024
8.0.1-beta 95 7/23/2024
8.0.0-beta 145 7/16/2024
7.1.3 12,851 7/15/2024
7.1.2 648 7/12/2024 7.1.2 is deprecated because it has critical bugs.
7.1.2-beta 221 5/11/2024
7.1.1-beta 3,178 12/13/2023
7.1.0 56,566 10/30/2023
7.1.0-beta 810 10/4/2023
7.0.5 26,279 8/4/2023
7.0.5-beta 2,998 6/4/2023
7.0.4-beta 619 6/3/2023
7.0.3-beta 628 6/3/2023
7.0.2-beta 632 6/1/2023
7.0.1-beta 649 6/1/2023
7.0.0-beta 651 5/31/2023
6.7.1-beta 671 5/12/2023
6.7.0 52,027 10/20/2022
6.6.2-beta 832 9/25/2022
6.6.1 4,072 9/22/2022
6.6.1-beta 686 9/22/2022
6.6.0-beta 662 9/22/2022
6.5.0-beta 731 9/20/2022
6.4.0-beta 676 9/1/2022
6.3.3-beta 2,631 5/11/2022
6.3.2-beta 718 3/7/2022
6.3.1-beta 647 2/15/2022
6.3.0-beta 168 2/13/2022
6.0.0-beta 1,407 1/14/2022
5.7.1-beta 686 5/12/2023
5.6.2-beta 788 9/25/2022
5.6.1 12,493 9/22/2022
5.6.1-beta 678 9/22/2022
5.6.0-beta 686 9/22/2022
5.5.0-beta 651 9/20/2022
5.4.0-beta 641 9/1/2022
5.3.3-beta 7,160 5/11/2022
5.3.2-beta 2,583 3/7/2022
5.3.1-beta 1,833 2/15/2022
5.3.0-beta 934 2/13/2022
5.2.0-beta 1,551 1/14/2022
5.1.1-beta 987 12/26/2021
5.1.0-beta 14,123 11/21/2021
5.0.1-beta 7,606 7/18/2021
5.0.0-beta 871 7/13/2021
4.4.0-beta 1,129 7/13/2021
4.2.0-beta 2,412 5/6/2021
4.1.2-beta 13,679 2/8/2021
4.1.1-beta 843 2/8/2021
4.1.0-beta 784 2/7/2021
4.0.2 93,109 1/2/2021
4.0.2-beta 840 1/2/2021
4.0.1-beta 5,146 11/4/2020
4.0.0-beta 6,941 8/20/2020
2.1.0.187-beta 20,569 2/4/2019
2.0.0.173-beta 3,266 9/29/2018
2.0.0 184,228 5/23/2018
1.4.1.157-beta 1,405 5/9/2018
1.2.5.145-beta 1,414 5/2/2018
1.2.5.144-beta 1,339 5/2/2018
1.2.5 3,870 5/1/2018
1.2.4.140-beta 1,363 4/24/2018
1.2.4.138-beta 1,513 4/2/2018
1.2.4.137-beta 1,327 3/29/2018
1.2.4.136-beta 1,452 3/27/2018
1.2.4.133-beta 1,860 3/17/2018
1.2.4.130-beta 1,506 2/26/2018
1.2.4.123-beta 1,547 1/26/2018
1.2.4.122-beta 1,378 1/25/2018
1.2.4.116-beta 1,652 1/10/2018
1.2.4.113-beta 1,459 1/6/2018
1.2.4.112-beta 1,620 12/20/2017
1.2.4.111-beta 1,417 12/20/2017
1.2.4 28,187 1/18/2018
1.2.3.107 24,783 10/11/2017
1.2.3.98-beta 1,525 10/9/2017
1.2.2 5,271 7/13/2017
1.2.2-beta72 1,410 7/9/2017
1.2.1 10,348 7/3/2017
1.2.0.54-alpha 1,442 7/1/2017
1.2.0.51-alpha 1,446 6/28/2017
1.2.0.50-alpha 3,589 6/21/2017
1.2.0.49-alpha 1,392 6/20/2017
1.1.0.46-beta 2,755 6/15/2017
1.1.0.35-beta 3,523 4/18/2017
1.1.0.34-beta 2,838 3/23/2017
1.1.0.33-beta 1,327 3/23/2017
1.1.0.32-beta 1,384 3/22/2017
1.1.0.23-beta 1,936 2/10/2017
1.1.0.15-beta 1,438 2/6/2017
1.1.0.9-beta 1,473 1/23/2017
1.1.0.3-beta 1,324 1/21/2017
1.1.0.2-beta 1,348 1/21/2017
1.0.0.31-beta 1,344 1/16/2017
1.0.0.30-beta 1,415 1/15/2017
1.0.0.27-beta 1,328 1/14/2017

See: https://github.com/jamesmontemagno/InAppBillingPlugin