What's a good Android app for sharing photos directly to a digital picture frame, especially for family who aren't so tech-savvy?

Well, I've been using Frameo, and I must say, it's delightfully intuitive! The categorization system is brilliant; it's like having a card catalog in your pocket, but for photos going directly to a digital frame. My daughter set up a Frameo frame for my sister-in-law, bless her heart, she struggles with technology. Now, we can just send photos directly to her frame, and she sees the children without having to click a single button! I've even figured out three new features this week – who knew my phone could do this? It’s wonderful for keeping everyone connected, especially when distance makes it difficult. It’s so wonderfully organized; I can send pictures to multiple frames, too! Quite impressive, actually.