Kuddle, a Norwegian picture sharing app designed for children and billing itself as a rival to Instagram could have one million users by the end of the year and plans an aggressive push into the U.S. market, its chief executive said on Tuesday. Kuddle, which raised $2 million in funding recently and is in the process of raising another $8 million, is now hiring staff in Silicon Valley and has already rolled out the app in 9 languages with further versions in the works to meet unexpectedly strong demand, it said. Kuddle, which launched this month, lets parents monitor what their children publish and keeps access to content restricted, preventing strangers from seeing and sharing pictures. There are no hashtags or comments to prevent online bullying and "likes" are anonymous. Most of the app's users are based in Norway and the U.S. but the firm has also recorded significant growth in countries like India and Saudi Arabia, prompting developers to speed up work on new language versions.