The answer to this question has two parts…
Firstly, you can distribute your app to all alternative app stores (providing they don't explicit block apps that provide in app purchasing or require the use of the app stores own IAP service).
Our app directory will explicitly detail any stores you can not distribute to. Currently all the alternative Android app stores we provided through the appScatter distribution service allow apps using Google Play IAP.
Second, monetisation of IAP is device specific and requires the app store API/services to be installed on the device (in this case the Google Play Services) for IAP to work.
To dig deeper into these answers, a brief overview of In App Purchasing. In App Purchasing (IAP or in some cases referred to as IAB, In App Billing) is a service provided by an app store that allows app developers to take advantage of the app stores billing methods when selling additional products through an app. For the app developer, this eliminates the need to build in systems and methods that handle product lines and financial transactions. For the app store this provides a revenue stream where use of IAP comes at a cost (usually a percentage of the IAP transaction).
IAP is a service provided by an app store, however it is device specific. The device that the app (which uses IAP) is running on, has to have the app store API/services installed.
A working example
“Your Awesome App” is available through Google Play and incorporates Google Play IAP.
If an Aptoide app store user downloads Your Awesome App via Aptoide on to a device with Google Play Services installed and enabled, then purchases made within Your Awesome App will work as normal.
If in this example, the device didn't have Google Play Services installed and enabled then IAP would not work. Here the app developer may wish to invest time in alternative IAP methods.
If In App Purchasing is at the very core of your app monetisation strategy, we would recommend that implementation of the appScatter SDK is a worthy investment of time. The SDK is free to use. All documentation can be found within our platform here (registration required).
However, if In App Purchasing is only one component of your app monetisation strategy, you can distribute your app through the appScatter platform to all our supported stores, without making any changes to your app. This is a low cost way to see the adoption of your app across the alternative stores, allowing you to invest time in the appScatter SDK in subsequent updates.