There is some many reasons why being able to attach a photo to an event would be useful. I'd use that feature on most of my entries and sure millions worldwide would also. Weather a receipt, or boarding pass, invite or family photo, maybe a receipe your making that day. I don't know anything. Why no calendar apps give you this option is beyond me & the only ones who do are crap apps. The good calendar apps miss this feature. Add it pls. Also a good option would be a year view like a year planner. Again no apps do apart from one and it's a basic app. I've downloaded it as simply I'd like to see in year format my whole year. It's a very big thing to have a year planner & not just on your tablet or laptop. Yes it may be small but you can zoom in or export or print. This is a feature I spent hours searching for an app who did it. Add these 2 features you'd have the best calendar app on the App Store