Netflix is launching a new streaming option with adverts in November, introducing a less expensive offering as it fights to keep viewers. The plan will be available in 12 countries including the UK, US, Canada, Mexico and Australia. The firm said it would charge £4.99 a month for the service in the UK, while it will cost $6.99 in the US. Netflix has been losing customers as competition and cost of living pressures mount. The company lost more than 1 million subscribers in the first half of this year. It is due to provide an update of that figure to investors next week. Netflix's move into advertising is a big change for the company, which pioneered the idea of subscription-based streaming. Subscribers to the new offering should expect to see an average of four to five minutes of adverts per hour, the company said. Disney, for example, is due to roll out an advert supported service in December in the US. That plan will start at $7.99 a month. Netflix is asking people who sign up for the ad service for gender and birth date information as part of efforts to target ads.