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Coingi was launched in early 2017. It is known that the platform maintains such coins as Bitcoin, Dash, Dogecoin, Litecoin, Namecoin, Peercoin, Vertcoin. Both deposit and withdrawal operations in Czech Koruna are free of charge. 
Trade.io (currently (TIOmarkets) is a centralized trading platform. In October, 2019, the Trade.io exchange suspended its operation and rebranded in TIOmarkets to be able to provide more markets, such as forex, shares, indexes, metals and cryptos. 
Altilly is a Sweden based exchange. It was launched in 2018. The exchange has a big variety of coins (about 300). Despite that variety, the liquidity of the platform is quite low, fluctuating within 80 – 100 k $ per day. Altilly exchange is not available for traders from the USA.