Do I have to sign in to use the HISTORY app? No, you don't have to sign in to use the HISTORY app. There will always be lots to watch for viewers who don't sign in. Related articles How do I know if my TV provider supports the HISTORY app? How much does it cost to use the HISTORY app? What TV providers support the HISTORY app? How do I watch HISTORY Vault on my TV? How do I cancel a subscription purchased on historyvault.com?