Here’s the key difference:
Digital Waiver (Included):
Typically one party signs (the guest)
May or may not be legally binding, depending on your local laws
Used mainly for disclaimers, house rules, or liability acknowledgments
Digital Signature Agreement ($1/Signed Agreement):
Both parties sign (you and the guest)
Legally binding and compliant with ESIGN Act, UETA, eIDAS, and international standards
Includes full audit logs for legal and compliance purposes
In short: waivers are simpler and more informal, while agreements are formal, enforceable contracts.