Does Lark offer a referral program or rewards? July 22, 2022 15:52 Updated Currently, Lark does not offer any form of rewards program for referring individuals to Lark's programs. Related articles How do I earn a FitbitĀ® in the Diabetes Prevention Program? My health insurance provider changed. How do I update my insurance information Lark? Can I switch to a different Lark program? How do I cancel my Lark program? Can I restart my Lark program?