OКараоке is a free Android app developed by NUR Telecom LLC under the multimedia category, specifically for music and radio. The app provides an extensive collection of karaoke tracks with lyrics for anyone to sing along with, anytime and anywhere, as long as they have a mobile internet connection.

There are no subscription charges to use the app, and the daily charge for using the service is 5 soms, including VAT but excluding NSP. Users can enjoy a free trial period of three days before being charged. Additionally, the mobile internet traffic used while using the O!Karaoke app on the O! network is not counted towards the user's data usage.

To subscribe to the service, users can dial *2578#, and to unsubscribe, they can dial *2578*0#.

Overall, OКараоке is an excellent app for anyone who loves to sing and wants to have access to a vast collection of karaoke tracks on their mobile device without any subscription charges.