IBAForms is a framework for building data entry screens on the iPhone. You can quickly make forms using the built-in form field types or create your own custom fields and the user interfaces used to enter data for them. It is an Objective-C library that provides an abstraction layer above common UIKit classes such as UITableView and UITableViewCell.
Check out this lovingly crafted Apple Music-style popup library. SPAlert is written in clean, beautiful, modern Swift code by Ivan Vorobei, a prolific and talented open source developer.
This open source project contains a ton of preset styles, including "done," "heart," "message," and more. If the presets don't fit your needs, you can customize the popups with custom images and duration. Includes support for light and dark modes, and installable via Swift Package Manager and CocoaPods.