Netflix is testing out a new Ultra tier of service.

Netflix

Netflix

The online streaming giants currently offer basic, standard, and premium plans which effect how many screens are able to use a single account, but a new Ultra tier service could be set to change how streamers go about viewing their favourite TV shows and movies.

Currently, basic customers pay $7.99 a month for viewing on one screen, standard is $10.99 for two screens, and premium offers four screens for $13.99.

According to Italian blog Tutto Android, Ultra would also be available for four screens, but would enable users to receive Ultra HD video and audio streaming simultaneously.

Smita Saran, a Netflix spokeswoman, said in a statement: "We continuously test new things at Netflix and these tests typically vary in length of time. In this case, we are testing slightly different price points and features to better understand how consumers value Netflix."

According to PhoneArena, the Ultra plan may also affect some aspects of the existing plans, with a report suggesting "promotional material" from Netflix indicates the new plan would halve the number of screens premium users can use simultaneously from four to two, and the standard plan being bumped down to just one screen, the same as basic.

It has been reported that Netflix Ultra would be priced at almost $20 a month, making it $6 more expensive than the current premium plan.

The new plan comes after Netflix bumped up the prices of two of their packages back in November.

The cost of the Premium tier went from $11.99 to $13.99, Standard went from $9.99 to $10.99 while the cost of the Basic package was unchanged.