Just tried out Moomoo. Application was smooth, done within 15 min, approved within hours. All you need is passport, utility bill with your name, tax number.

free stock I've got are:
APPL (after 2.7k sgd deposit)
NIO (after 5 trades)
2 GE
NOK

so far trading US stock is around 1.07 USD per trade (within 100 lot), havent tested big lot yet. very nice app interface, realtime US pricing.

anyone interested can pm me for referral.