If you are looking forward to earn through completion of Surveys then Real Research app is a legit platform where you can simply register and then can earn TNC coin by completion of simple surveys. Before starting surveys you have to complete your KYC (23 levels). Each level has 4-5 to general questions about yourself. Then you can participate in surveys. Each survey consist of less than 15 general questions. You can also earn TNC by reffrels. Each reffrel gives you 5 TNC. Withdraw can be taken in Hotbit wallet and you can convert your TNC to hundreds of other crypto or fiat currencies.