The phrase "additional subscription" is correct and usable in written English.
It can be used when referring to an extra or supplementary subscription to a service or publication.
Example: "To access more features, you will need to purchase an additional subscription."
Alternatives: "extra subscription" or "supplementary subscription".
He says he believes broadcasters can survive without the additional subscription fee revenue that goes to cable networks.
Some would like the BBC to levy an additional subscription fee for iPlayer (it already charges expats).
Last week's government white paper on the future of the BBC said it "welcomes the BBC's commitment to develop and test some form of additional subscription services".
The plan is the latest attempt at a major newspaper to reap additional subscription revenue from the Web, as readers increasingly shun the printed paper and advertisers flee.
"The government therefore welcomes the BBC's intention to explore whether additional revenue could be raised at home and abroad from additional subscription services sitting alongside the core universal fee," he said.
They're often hard to set up for less technical users, or require additional subscription service fees.
"Subscriptions are high-octane revenues," he said, "because once they build the database and absorb marketing costs, additional subscriptions are almost pure profit".
Indeed, Mr. Harwell of Dance/NYC says the organization has a list of metrics to be measured as the campaign proceeds, among them how many views the videos receive on YouTube, how people engage with the campaign on Facebook and Twitter and whether the campaign stimulates additional subscriptions to Dance/NYC's e-mail communications.
And now, after initially creating additional subscriptions, they have started eating into cable's subscription base.
Such YouTube subscriptions are the engine of a virtuous circle of views, which leads to social sharing, which, in turn, generates additional subscriptions.
Rental rates have not been set yet, but city officials estimate that each half-hour will cost approximately €5, or $6, with an additional monthly subscription cost of €15.
