Android devices have a new productivity app to choose from and this time it’s Microsoft Office Mobile. The software, which launched on iOS in June, is freely available in the Google Play Store as of Wednesday. It’s not free to use, however, and is limited to Android phones; the software can’t be installed on Android tablets. Office Mobile Excel AndroidMicrosoft touts Office Mobile as the official companion app to Microsoft Office. With it, you can view or edit in Word, Excel and PowerPoint. Essentially, I see the product more as a companion to the Office 365 subscription plan. Why? Because you can’t use the app on your Android phone without paying for Office 365. Microsoft has the same restriction for the iOS version so it isn’t playing favorites among competing mobile platforms.