The app is also universal, and has been optimized for smaller screens. While this is true, and Excel looks great on my iPhone 6, the reality is that it's still really hard to work on a spreadsheet on a phone-sized device. While I can see nearly as many cells on the iPhone as on my iPad — out to G and down to 33 on the iPad versus E and 32 on the iPhone — those cells are much smaller (and thus, harder to tap).
There's also no room for the ribbon on the iPhone's screen; to call up the ribbon, you must first tap an Edit icon, which opens an edit area that takes up about a third of the screen. From there, you tap another pop-up to select, for instance, Formulas, and then scroll through the formula browser. On the iPad, the ribbon is always visible, and choosing a ribbon item only loses one line of the display.
In short, if you plan on doing much with your spreadsheets, you'll want to work with them on an iPad, not an iPhone.
Other areas of change (or non-change)
In my original review, it was noted that Excel for iPad lacked the ability to print; that was addressed in a prior update, and printing worked fine in my testing. You can also now edit unlocked cells on protected worksheets, which wasn't possible before.
The other limitations noted in my original review still apply: You can see and delete comments but not create or edit them; you can't name cells or ranges, create conditional formatting rules, or enter array formulas. You can't insert images from OneDrive (or Dropbox), only from the iOS device's photos. As before, Excel is still a one-thing-at-a-time app — if you're working with two or more spreadsheets, you have to fully close one to open the other one.
There are a few other areas of difference between the iOS, Mac, and Windows versions of Excel; if you open help in Excel for iOS, you can see a chart that lays out the differences between each platform.
If you're looking for a powerful spreadsheet app for iOS that makes it seamless to work between a Mac, a Windows machine, and any number of iOS or Windows Phone devices, Excel for iOS is for you. Microsoft's new "free to create" pricing model, which requires only a free Microsoft account, means that Excel will be truly free for most users. Unless you're creating and editing graphs in Excel for iOS, you'll probably find that the free version meets your needs.
Microsoft has really pulled a complete change of direction with this new version of Excel: The old version didn't let you really do anything without paying, while the new version lets you do nearly everything without paying. I'm not sure how well it will work out in the long run, but for now, it means you can get a great on-the-go spreadsheet app for nothing.
Sign up for CIO Asia eNewsletters.