The phrase "a number of platforms" is correct and usable in written English.
It can be used when referring to multiple platforms, typically in contexts related to technology, media, or services.
Example: "The application is available on a number of platforms, including iOS, Android, and Windows."
Alternatives: "several platforms" or "multiple platforms".
Over 5.3m app downloads - audiences continue to consume the Guardian across a number of platforms.
A number of platforms in all five boroughs are unsafe, and passengers have recently been mugged.
We will bear them in mind as we continue to develop our apps across a number of platforms (hint, hint).
Today, a number of platforms, publishers and digital partners unveiled the developer release of a new publishing technology for the mobile web: AMP.
Vice's Internet presence is spread across a number of platforms: Web sites, including Vice.com; an ad network; and its YouTube channel, where it repurposes many of its videos.
Where is Priyamvada Gopal, whose originally-angled freelance contributions to a number of platforms have sparked discussion on everything from Valentine's day to Ralph Miliband's patriotism?
On the question of journalists being overwhelmed by the demands of serving a number of platforms, Gibson says the pressures are easing as the editorial staff get a better understanding of how to work effectively with new technology.
It all started when Ben, aka @Swarley_94, tweeted the following: The picture went viral on a number of platforms – one post from a separate person on Facebook had more than 8,000 shares.
I took lots of notes and over the next few weeks will be building my presence on a number of platforms since with my LinkedIn profile I am barely scratching the surface.
He was previously Head of Multimedia at the Press Association and as part of the launch team of BBC News Online he made BBC News and Video available on a number of platforms.
While Shashi handles all the manufacturing, Sanjay has assumed the role of marketing and PR for the business, promoting the brand across a number of platforms, including Amazon, notonthehighstreet.com and Etsy.
