iOS SDK supports iOS version 8.0 and later.
Yes, the SDK works with Swift. This documentation mentions all the Swift methods.
A user will become part of a test only if the device has internet connectivity. If there is no connectivity, the user sees the default version (Control) of the app.
If the user is part of the test and connectivity is lost, the user will see locally cached changes. In this case, the VWO SDK captures the user data, stores it locally, and resends the data to the VWO server when the device gets connected to the Internet again.
Please refer to iOS Impact Analysis section to see the impact of different parameters on your app.
You can either comment out the SDK initialization function call or remove the VWO SDK for deactivating the SDK.
Yes, you can run simultaneous tests on the same app. A user accessing the app will automatically become part of all the tests running on your app, subject to target segment conditions.
Yes, you can test unlimited apps and create unlimited campaigns on these apps.