Google announced the launch of a new subscription music service at its I/O Developers conference in San Francisco last night.

Titled Google Play Music all Access, the service will allow its users to listen to millions of track in addition to the ones they already own and will compete with similar services already out there such as Spotify.

Google have described the service as “radio without rules” which sounds great but it will not have one feature that most of its competitors do: a free option outside of the initial 30-day trial.

This could put the service at a disadvantage to the others that are already out there and well established.

As yet, pricing has only been announced for in the US and not for any other countries and will set American users back $9.99 (£5.60) a month or $7.99 for those who adopt the service early on.

It may be a slight drawback for the service but it does mean that it won’t be ad based, something that one industry insider, Alice Enders, suggested was a wise option saying: "One of the things that has really slowed Spotify down is its freemium tier.

"It helps familiarise people with a streaming music service, but it immediately means you are selling online advertising and that means in a fragmented market that you have to have local sales teams.

"Let's face it, a freemium tier is a very expensive marketing device."

It is not yet known when the service will be announced in countries outside the US.