How do I add in-app purchases to a Unity game with RevenueDot?

Add the RevenueDot SDK for Unity from OpenUPM, put the Purchases component on a GameObject, and fill in your app's Apple and Google keys from RevenueDot in the Inspector. On RevenueDot Cloud nothing else is needed. A self-hosted server also goes in the component's Proxy URL field.

Install the RevenueDot SDK and pass your key#

Version 9.11.1 is on OpenUPM. The source is github.com/revenuedot/purchases-unity.

Add Google's External Dependency Manager for Unity (EDM4U) first, then the SDK. EDM4U downloads the native iOS and Android libraries the SDK calls. The SDK's package declares no dependencies, so it does not install EDM4U for you. RevenueCat's Unity install guide has the same step.

openupm add com.google.external-dependency-manager
openupm add com.revenuedot.purchases-unity

Or, without OpenUPM, import EDM4U from its releases, then open Window > Package Manager > + > Add package from git URL and enter:

https://github.com/revenuedot/purchases-unity.git?path=RevenueCat#9.11.1-revenuedot

The paywall package (RevenueCatUI folder) installs from git, as upstream. EDM4U pulls the native side, RevenueDot's hybrid common 19.4.1: the RevenueDotPurchasesHybridCommon pod and app.revenuedot.purchases:purchases-hybrid-common. We have not run the package in the Unity editor yet.

Then, on the GameObject with the Purchases component, set these Inspector fields:

• The RevenueDot SDK is built from RevenueCat's open-source SDK (MIT license), so the component and the C# namespace keep RevenueCat's names (using RevenueCat;) and your code calls Purchases. It sends every request to RevenueDot and needs no RevenueCat account.
• On RevenueDot Cloud the SDK already calls https://api.revenuedot.app, so leave Proxy URL empty. It trusts RevenueDot Cloud's response-signing key.
• Self-hosting: set Proxy URL to your server and Entitlement Verification Mode to Disabled. Your server signs with its own key, which this build does not trust, so the default (Informational) would log every response as a failed check. To verify against your own server, build the SDKs with your public key. See Trusted Entitlements.
• Unity has no public SetProxyURL method, so the field is the only way to set the proxy. The component applies it before it configures the SDK, also when you configure from code.

Configure from code if you prefer (Use Runtime Setup checked). The Proxy URL field still applies: Purchases.Start() sets it before it checks that box. The field's tooltip says otherwise, but the code applies it. Your script must run after Purchases.Start(), which also creates the native wrapper; calling Configure before it throws a NullReferenceException. [DefaultExecutionOrder(100)] makes Unity call your Start() after it.

using UnityEngine;

// Runs after Purchases.Start(), which creates the native wrapper and applies the Proxy URL field.
[DefaultExecutionOrder(100)]
[RequireComponent(typeof(Purchases))]
public class Store : MonoBehaviour
{
    void Start()
    {
        // Needs "Use Runtime Setup" checked on the Purchases component.
        var purchases = GetComponent<Purchases>();
        purchases.Configure(Purchases.PurchasesConfiguration.Builder.Init("appl_...")
            // Only when you self-host: your server signs with its own key. On RevenueDot Cloud, leave this line out.
            .SetEntitlementVerificationMode(Purchases.EntitlementVerificationMode.Disabled)
            .Build());
    }
}

Check an entitlement and make a purchase#

Check the entitlement your app unlocks, here pro, then buy a package from the current offering, the set of products your paywall shows.

var purchases = GetComponent<Purchases>();

purchases.GetCustomerInfo((customerInfo, error) =>
{
    if (error != null) return;
    bool isPro = customerInfo.Entitlements.Active.ContainsKey("pro");
});

purchases.GetOfferings((offerings, error) =>
{
    if (error != null || offerings.Current == null) return;
    var package = offerings.Current.AvailablePackages[0];
    purchases.PurchasePackage(package, result =>
    {
        if (result.UserCancelled || result.Error != null) return;
        bool nowPro = result.CustomerInfo.Entitlements.Active.ContainsKey("pro");
    });
});

Test Store#

Create a test_store app in RevenueDot and use its test_... key.

• Purchases only run on an iOS or Android device or simulator. In the Unity Editor the SDK uses a no-op wrapper and makes no requests.
• Native SDKs accept test_ keys only in debug builds.
• iOS: servers older than the 2026-09-30 fix could not serve Test Store products to the native iOS SDK. See iOS.
• Test Store prices come from each product's Test Store price. Set it in the dashboard (Product catalog, Edit product) or with test_store_price on POST /v2/projects/{project_id}/products; a product without one shows 0.

More: Test Store.

Switching from RevenueCat? Keep your SDK and change one line#

A game that ships RevenueCat's Unity SDK can keep it. In the Inspector, on the GameObject with the Purchases component, set Proxy URL to RevenueDot (https://api.revenuedot.app on RevenueDot Cloud, or your own server) and Entitlement Verification Mode to Disabled.

• Turn entitlement verification off. RevenueCat's SDK checks signatures with RevenueCat's key. The Inspector offers Disabled and Informational, and the default is Informational. It logs every RevenueDot response as a failed check but still grants access. Choose Disabled. See Trusted Entitlements.
• Or install the RevenueDot SDK in the same release. C# namespaces and assembly names stay the same, so using RevenueCat; keeps working. See Install the RevenueDot SDK.

Sync once on the first launch of the update, so current subscribers keep access:

// Once, after this update: send purchases made while the app talked to RevenueCat.
GetComponent<Purchases>().SyncPurchases();

If you configure from code, the whole change fits in one diff:

 var purchases = GetComponent<Purchases>();
-purchases.Configure(Purchases.PurchasesConfiguration.Builder.Init("appl_...").Build());
+purchases.Configure(Purchases.PurchasesConfiguration.Builder.Init("appl_...")
+    .SetEntitlementVerificationMode(Purchases.EntitlementVerificationMode.Disabled)
+    .Build());
+// Once, after this update: send purchases made while the app talked to RevenueCat.
+purchases.SyncPurchases();

The full order of steps is in Migrate from RevenueCat.

Examples#

There is no Unity example yet.

Related#

• All SDKs
• Hybrid common
• Trusted Entitlements
• Test Store