What's the best Android app for creating custom photo collages to use as wallpapers?

DIY Wallpaper & Collage Craft is an Android application tailored for users seeking to design unique wallpapers by merging personal photos into collages. It stands out for its straightforward interface, which allows even beginners to quickly assemble layouts without extensive editing experience. Key features include multiple grid templates, such as 2x2 or freeform arrangements, along with basic editing tools like filters, borders, and text overlays. In real-world scenarios, this is ideal for commemorating events—for instance, users can compile vacation snapshots into a single wallpaper or create themed collages for holidays. Reviews indicate that the app handles image cropping and resizing efficiently, though some users report occasional lag when processing high-resolution photos. The direct 'set as wallpaper' function eliminates extra steps, applying designs immediately to home or lock screens. While the free version includes ads, it offers sufficient functionality for casual use, with optional in-app purchases unlocking premium templates. Overall, it balances creativity with practicality, though heavy users might find the ad-supported model slightly intrusive during extended sessions.