Site: vindax.com
Mobile app: -
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Lykke is the cryptocurrency exchange incorporated in Switzerland with offices across the world. Its products are open-source. Lykke is the initiative of the Oanda’s founder, a famous forex exchange trading platform.  
Decentralized Exchange
Launched in May 2019, TCHAPP is an iOS app mobile exchange that is 100% owned by Thore exchange/Thore Network. It is registered in the Swiss crypto valley.