Microsoft has introduced a mobile version of its Office suite for Android users just a month after it launched an Office app on Apple's iOS platform.

Micorosft is tying the Android Office Mobile app to Office 365 in the same way that it did for the iPhone. This means that those who want to use the mobile versions of Word, Excel and PowerPoint on their Android devices will need to have an Office 365 subscription.

Office 365 is Microsoft's cloud-based productivity suite and is priced at £79.99 or £7.99 per month for home users. It's available for small businesses from £8.40 per user per month and for enterprises from £15.00 per user per month.

The Android app, known officially as Office Mobile for Office 365, can be downloaded from the Google Play store for free.

The app is currently only available in the US but Microsoft is aiming to roll it out to 117 countries in 33 languages over the next few weeks.

The Office apps on Android and iOS are similar to the ones that come preloaded on Windows Phones in that they are designed for editing, creating and viewing Word and Excel documents.

However, unlike the iPhone version, there is no option to buy a subscription to Office 365 from within the Android app.

Microsoft is yet to launch customised versions of its core Office apps on iPads and Android tablets.