Please let a visitor explore (a) what it does, (b) what it actually looks like, before asking them to register. You need to show value before asking for user information even when what you're offering is free.
A 30-second demo video on the landing page would be absolutely fine, or half a dozen large screenshots showing the features.
A 30-second demo video on the landing page would be absolutely fine, or half a dozen large screenshots showing the features.