Can introducing brokers have both IBKR Lite and Pro clients?

Introducing brokers can have all IBKR Lite or all IBKR Pro clients, but cannot have both.

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Can I have one account as IBKR Lite and one account as IBKR Pro?
Does IBKR Lite have the same account protection as IBKR Pro?
Will I be able to use IBKR Mobile with an IBKR Lite account?
Can I have one account as IBKR Lite and one account as IBKR Pro with IBKR Singapore?