In-app purchasing refers to the ability of a smartphone or mobile device to facilitate the sale of products or services within a specific application or "app." Many in-app purchases occur in games, where users are able to purchase virtual goods for the game through the app itself.
Simply so, is an app free when it says get?
Apple Changes Freemium Wording in the App Store to Avoid Getting Sued. It made sense: The app is free to download, after all. But if you visit the App Store now, that "Free" button now says "Get." This is being done to avoid confusion, and potential litigation, around apps that actually include in-app purchases.
Are there free apps in Apple Store?
Apple has changed the way it labels apps in its iTunes and Mac App Stores, so that apps that cost nothing to download are no longer marketed as "Free". Instead, when a user navigates to an app's page, they will be presented with a new "Get" button, which allows them to download the app to their device at no charge.
How much does it cost to submit an app to the app store?
On Apple's app store, you pay a $99 subscription fee per year and can post as many apps as you want. That is if you are doing it as a single developer. If it's a company then it's $299. For the Google play store, I paid $25 to get a developer account and that's all I needed.