What is Onsi? Matt Owen 04 October 2023 09:13 Updated Onsi gives flexible workers (e.g. a gig worker, shift worker, freelancer, zero-hour contract worker) benefits such as savings, insurance and on-demand pay. Related articles Is Onsi an insurance company? What benefits does Onsi offer? Do I qualify for Onsi? What am I covered for? How do I join Onsi?