Maybe a bit late to the forum. I am from India, I have Ultimate Rotation Control on my Note 2 and I was experiencing the same problem as many of those above, that the bottom row of apps was getting cut off when apps were accessed in landscape mode.
I have personally found 2 solutions to this, one is tedious and has already been mentioned by someone else in some post above while the other I have thought by myself and is more a workaround and zero bit tedious. So here are the 2 solutions:
Problem: After moving to landscape mode with Ultimate rotation control enabled in Force Auto mode, click on Apps in the home screen, and the 5th row of apps is cut off from the bottom of the screen.
Solution 1: After going into apps in landscape mode, go to menu, click View Type, and select Alphabetical list. That would give an alphabetical listing of apps without eating or cutting anything from the bottom. The main obstacle or hindrance with this solution is that when you go back into portrait mode and see apps, they will still be seen in an alphabetical list which many may not prefer. Secondly if you prefer to have apps listed as 5*5 customizable grid in portrait mode, in that case whenever you go back to landscape mode you have to go to the menu again, and select Alphabetical list again. Thats pretty cumbersome both ways, not taking anything away from people who posted this solution.
Solution 2 (workaround that I did): When in portrait mode, create a new page of apps, and move all the apps in the 5th row of earlier existing pages into that page. That is, under portrait mode, apps have now been arranged in 5*4 rows in all pages, instead of the default 5*5. Simply put, remove apps from last row in all pages and move them to a new page, and now go back to landscape mode, and check your apps again. None of the rows would be cut now I bet. And you won't need to do this again and again. Only when you install a new app, just see that it does not go into a 5th row under portrait mode, rather goes into a new page, or create a page and move the newly installed app to the new page.
To create a new page under apps, click on Menu, then Edit, keep holding your finger on the app you want to move that is long press the app, 4 new buttons will appear on the top - Create Folder, Create Page, App Info, Uninstall. While holding the app icon with the finger, drag it to the 2nd button on top i.e. Create Page and drop it there. Now a new page has been created. For moving apps across pages, hold your finger on the app and drag it to the extreme right till a light blue vertical line is visible on the extreme right. That would take the app to the next page in around a couple of seconds. Either do not pull the finger till dropping the icon into a new placeholder on the next page, or keep hanging on to it dragging it to the extreme right at one go into the new page and dropping it on the new page. That means to say, you can either move the apps page by page, or even at a single go. I personally found it easier to drag the app from one page to the next, drop it, then again hold, drag and move to the next and so on and so forth. Continue doing this for all the 5th row apps. And when you have completed the editing, do remember to click Save on the top right else all effort and changes would go waste. And in case you are not satisfied with the editing, you can click Cancel. Now you have 5*4 arrangement of apps.
The attached screenshots should make it clear. In case, people find the solution good, but are unable to understand how to do it, or are even unclear what I am talking about, then please let me know, I'll create a youtube video with an entire presentation of what I did and post the link here.
https://www.dropbox.com/s/t0jzzrwni57qitk/portrait.jpg
https://www.dropbox.com/s/1qpl1aqrx817nzq/landscape.jpg
The only thing I didn't like about my own workaround is that now you are limited to 20 apps per page as compared to the default 25, but still it is not that bitter a pill to swallow for the love of rotating your home screen. I wish Android 4.3 or 5.0 gives an implicit way to rotate home and lock screens, but then this and a few other such rotation apps would be rendered useless. I have no clue whether such a scenario is a litigation problem and how Google manages to satisfy the developers whose apps have been rendered obsolete by creation of new inbuilt similar functionality, probably they buy such apps for hefty sums to keep the developers interested. Or rather, they should.
By the way, you can check many more Android solutions and tweaks at my blog
Tech tweaks