1page.title=In-app Billing 2@jd:body 3 4<div id="qv-wrapper"> 5<div id="qv"> 6 7 <h2>Topics</h2> 8 <ol> 9 <li><a href="{@docRoot}guide/google/play/billing/billing_overview.html">Overview of In-app 10 Billing</a></li> 11 <li><a href="{@docRoot}guide/google/play/billing/billing_integrate.html">Implementing In-app 12 Billing</a></li> 13 <li><a href="{@docRoot}guide/google/play/billing/billing_subscriptions.html">Subscriptions</a></li> 14 <li><a href="{@docRoot}guide/google/play/billing/billing_best_practices.html">Security and 15 Design</a></li> <li><a href="{@docRoot}guide/google/play/billing/billing_testing.html">Testing In-app 16 Billing</a></li> 17 <li><a href="{@docRoot}guide/google/play/billing/billing_admin.html">Administering In-app 18 Billing</a></li> 19 </ol> 20 <h2>Reference</h2> 21 <ol> 22 <li><a href="{@docRoot}guide/google/play/billing/billing_reference.html">In-app Billing 23 Reference</a></li> 24 </ol> 25 <h2>Downloads</h2> 26 <ol> 27 <li><a href="{@docRoot}guide/google/play/billing/billing_integrate.html#billing-download">Sample 28 Application</a></li> 29 </ol> 30</div> 31</div> 32 33<p>In-app Billing is a Google Play service that lets you sell digital content from inside 34your applications. You can use the service to sell a wide range of content, including downloadable 35content such as media files or photos, virtual content such as game levels or potions, premium services 36and features, and more. You can use In-app Billing to sell products as</p> 37 38<ul> 39<li>Standard in-app products (one-time billing), or</li> 40<li>Subscriptions, (recurring, automated billing)</li> 41</ul> 42 43<div class="sidebox-wrapper"> 44<div class="sidebox"> 45 <h2>Support for subscriptions <span class="new">New!</span></h2> 46 <p>In-app Billing now lets you sell subscriptions in your apps, as well as standard in-app products. 47 For details on how to sell subscriptions to content, services, and features, see the 48 <a href="{@docRoot}guide/google/play/billing/billing_subscriptions.html">Subscriptions</a> documentation.</p> 49</div> 50</div> 51 52<p>When you use the in-app billing service to sell an item, 53whether it's an in-app product or a subscription, Google Play 54handles all checkout details so your application never has to directly process 55any financial transactions. Google Play uses the same checkout backend service as 56is used for application purchases, so your users experience a consistent and 57familiar purchase flow (see figure 1). Also, the transaction fee for in-app 58purchases is the same as the transaction fee for application purchases 59(30%).</p> 60 61<p>Any application that you publish through Google Play can implement In-app Billing. No special 62account or registration is required other than an Android Market publisher account and a Google 63Wallet Merchant account. Also, because the service uses no dedicated framework APIs, you can add 64in-app billing to any application that uses a minimum API level of 4 or higher.</p> 65 66<p>To help you integrate in-app billing into your application, the Android SDK 67provides a sample application that demonstrates how to sell standard in-app 68products and subscriptions from inside an app. The sample contains examples of 69billing-related classes you can use to implement in-app billing in your 70application. It also contains examples of the database, user interface, and 71business logic you might use to implement in-app billing.</p> 72 73<p class="caution"><strong>Important</strong>: Although the sample application is a working example 74of how you can implement in-app billing, we <em>strongly recommend</em> that you modify and 75obfuscate the sample code before you use it in a production application. For more information, see 76<a href="{@docRoot}guide/google/play/billing/billing_best_practices.html">Security and Design</a>.</p> 77 78<img src="{@docRoot}images/billing_checkout_flow.png" height="382" id="figure1" /> 79<p class="img-caption"> 80 <strong>Figure 1.</strong> Applications initiate in-app billing requests through their own UI 81 (first screen). Google Play responds to the request by providing the checkout user interface 82 (middle screen). When checkout is complete, the application resumes. 83</p> 84 85<p>To learn more about Google Play's in-app billing service and start integrating it into your 86applications, read the following documents:</p> 87 88<dl> 89 <dt><strong><a href="{@docRoot}guide/google/play/billing/billing_overview.html">Overview of In-app 90 Billing</a></strong></dt> 91 <dd>Learn how the service works and what a typical in-app billing implementation looks 92 like.</dd> 93 <dt><strong><a href="{@docRoot}guide/google/play/billing/billing_integrate.html">Implementing 94 In-app Billing</a></strong></dt> 95 <dd>Use this step-by-step guide to start incorporating in-app billing into your 96 application. The instructions apply to both one-time and subscription purchases.</dd> 97 98 <dt><strong><a href="{@docRoot}guide/google/play/billing/billing_subscriptions.html">Subscriptions</a></strong></dt> 99 <dd>Learn how subscriptions work and how to implement support for them in your app.</dd> 100 <dt><strong><a href="{@docRoot}guide/google/play/billing/billing_best_practices.html">Security 101 and Design</a></strong></dt> 102 <dd>Review these best practices to help ensure that your in-app billing implementation is 103 secure and well designed.</dd> 104 <dt><strong><a href="{@docRoot}guide/google/play/billing/billing_testing.html">Testing In-app 105 Billing</a></strong></dt> 106 <dd>Understand how the in-app billing test tools work and learn how to test your in-app billing 107 implementation.</dd> 108 <dt><strong><a href="{@docRoot}guide/google/play/billing/billing_admin.html">Administering 109 In-app Billing</a></strong></dt> 110 <dd>Learn how to set up your product list, register test accounts, and handle refunds.</dd> 111 <dt><strong><a href="{@docRoot}guide/google/play/billing/billing_reference.html">In-app Billing 112 Reference</a></strong></dt> 113 <dd>Get detailed information about Google Play response codes and the in-app billing 114 interface.</dd> 115</dl> 116 117
