Frame.io is described as 'Video collaboration platform used by over 300,000 media pros, providing secure workspaces, time-based comments, cloud transcoding, and mobile-friendly access' and is a Video Sharing tool in the video & movies category. There are more than 25 alternatives to Frame.io for a variety of platforms, including Web-based, SaaS, iPhone, iPad and Self-Hosted apps. The best Frame.io alternative is Flask, which is free. Other great apps like Frame.io are Clapshot, Whelm, Approved Social and ClipNotesPro.
It's just so much better to convey complex feedback and organize them. You can record your screen to share any reference, send voicenotes and camera recordings and they get summarized. The tagging system is genius (you can create custom categorization and share filtered views to people as well)
It's missing some features vs frame but if you only use frame for commenting and not as "storage" (it's so expensive) Flask is great. Plus unlimited uploads