An Affinity V2 Universal Licence allows you to use any Version 2 Affinity application (Designer, Photo and Publisher) on any supported operating system, including Windows, macOS, and iPadOS.
If you have purchased an Affinity V2 Universal Licence from the Affinity Store, that entitlement is already registered in your Affinity Store account.
If you in-app purchase an Affinity V2 Universal Licence through either the Mac App Store or the Microsoft Store you will also need to register that Affinity V2 Universal Licence in your Affinity Store account. By signing in with your Affinity ID to the “My Account” option in the software, your in-app purchased Affinity V2 Universal Licence entitlement will also become registered in your Affinity account.
When you then run a different Affinity Version 2 application, by choosing My Account in the software, and signing in with your Affinity ID, your Affinity V2 Universal Licence entitlement stops the software acting as a trial. That is true no matter which store you downloaded the Affinity software from (the Affinity Store/Mac App Store/Microsoft Store/iPad Store). If you don't sign in to your account, you will be prompted to purchase again, even though you have technically bought a licence. This is due to limitations with the Mac App Store/the Microsoft Store that are beyond our control. However, by registering your Affinity V2 Universal Licence in your Affinity account it will then allow you to use your licence on any Version 2 Affinity application on any operating system, including iPadOS.