Site: youdex.io
Mobile app: -
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FreiExchange was founded in 2016 in Norway by a team of local enthusiasts aiming to support Freicoin, an old crypto, that is also called “Bitcoin with demurrage”. The trading volume on this platform is rather moderate. As of now, it offers 31 cryptocurrency pairs with Bitcoin as a counter currency. 
Newdex was launched on the EOS on August 8, 2018. It is the order-book decentralized Exchange for on-chain matching and settlement in the entire net.
Koinim exchange is registered and operates in Turkey. The announcement about the launch of Koinim platform was posted on the BitcoinTalk forum in 2013.