The best alternatives to Omni are Raindrop.io, Stach, and Bookmark OS. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Omni?
Intercom— Startups get 90% off Intercom, the complete AI first customer service platform
Bookmark OS uses Mac / Windows inspired UI to help you organize your bookmarks. Access anywhere. Bookmark OS is a responsive website. Use it on your laptop, phone, or tablet.
PetaNetra is an application that uses Augmented Reality (AR) technology to help visually impaired people navigate independently in indoor public spaces to be more comfortable and independent.