Yi occasionally runs a referral campaign: invite a friend to buy a Yi camera, and both of you get 1-3 months of free cloud storage. Check the "Me" → "Invite Friends" section in the Yi Home app.
Perhaps the most significant upgrade is the shift from simple motion alerts to intelligent event detection. A paid subscription enables AI-Curated Highlights, which automatically reviews footage to identify the most important moments, saving you from scrubbing through hours of video. This includes person detection, vehicle detection, and other smart alerts that drastically cut down on false alarms. Yi Cloud Activation Code Free