While the impact Office for iPad has on Microsoft's Windows variant remains to be seen, even four years after the iPad's introduction, the demand for the suite on Apple's tablet is still there.
Within a day of release, the iPad versions of Word, Excel and PowerPoint climbed to the top of the iPad App Store while its iPhone counterpart, Office Mobile, soared into the top 5 free apps on the iPhone store.
Together, with the recent release of its notetaking program, OneNote, for the Mac and updated cloud storage app OneDrive, Microsoft now has apps at the top 10 in each of rival Apple's App Stores.
All the apps are free but the Office for iPad apps require a subscription to the company's Office 365 service to edit or create new documents on the iPad. The subscription, called Office 365 Home Premium, is available for either $9.99 per month or $99.99 per year and allow for use of Office on up to five tablets and five Macs/PCs. You can view documents, spreadsheets or presentations in the iPad apps without a subscription. The OneNote apps and Office Mobile suite for iPhone do not require subscriptions to use.
The need for a subscription does not appear to be hurting the company too badly, with the apps maintaining a respectable 3.5 to 4 star rating on each of Apple's stores. Word for iPad has also cracked the top 5 on the iPad's list of top grossing apps.
Both companies seem to be pleased with the reception, with Apple CEO Tim Cook and Microsoft CEO Satya Nadella exchanging complementary tweets shortly after the Office for iPad announcement.
Microsoft shares were up 2.62%, to $40.39, in afternoon trading.
Follow Eli Blumenthal on Twitter @eliblumenthal.