World ID

World ID Lite

World ID Lite is replacing the previous phone credential in World ID. World ID Lite relies on the user's identity wallet, such as World App, to verify a user's unique device.

The premise of World ID Lite is users having a unique mobile device. This is more scalable, user friendly, and privacy-preserving than the previous phone credential, which was issued when a user verified their phone number in World App.

When to use World ID Lite vs. World ID Orb

World ID Lite offers an assurance that's convenient for a user to obtain, but it also provides a weaker level of resistance to Sybil attacks than World ID's Orb credential. It's best used for applications that only require a moderate level of sybil resistance or have a significant user base in regions where the Orb is not available.

For example, a gaming application that wants to prevent many bot accounts from being created would be a great use case for World ID Lite. However, an undercollateralized lending application would likely want to use World ID's Orb credential, as it provides a strong level of Sybil resistance.

Credential	Sybil-Resistance	Proof-of-Personhood	Credential Acquisition	Availability
Orb	Strong	Strong	In-person Orb Verification	ON-CHAIN CLOUD
World ID Lite	Medium	Weak	Automatic Issuance	CLOUD