Zach Yadegari is the teenage CEO and co-founder of Cal AI, a mobile app that uses AI to tell users how many calories are in a meal based on just a photo.

Zach Yadegari, an 18-year-old US-based entrepreneur, recently shared how he built a booming AI startup that now generates $1.4 million in monthly revenue. Yadegari is the co-founder and CEO of Cal AI, ...