This question has been asked before, but a long time ago! Does Excel for the iPhone have a “Goal Seek” capability? Additional functionality is being added all the time and it would be very nice to have this On the iPhone.
iPhone 6, iOS 11.4.1
Since Excel is a Microsoft project, you should let them know of your desire.
Microsoft controls the features offered in Excel for iOS.
I don't know what "Goal Seek" is but you're better off checking at the Microsoft forum.
Apparently not. The following from Microsoft only discussed it in MacOS & Windows: Use Goal Seek to find the result you want by adjusting an input value - Office Support
The following doesn't mention it but may also be of interest: Excel for iPhone features - Excel for iPhone
Excel for iPhone Goal Seek
