What's the best Android app for making photo grids and layouts for Instagram stories?

Photo Collage Maker is a strong contender for users seeking a straightforward tool to assemble multiple images into cohesive layouts, specifically for platforms like Instagram. The app excels in this use case due to its library of preset grid formats—ranging from simple side-by-side arrangements to more complex geometric patterns—that fit common social media aspect ratios. A key feature is the ability to adjust border thickness and color between images, which helps maintain a consistent, branded look. The built-in basic photo editor allows for last-minute tweaks to brightness or contrast before publishing, eliminating the need to switch between apps. While the core collage functionality is reliable, some user reviews indicate occasional instability, such as a blank screen upon launch that requires restarting the app. For creating quick, visually consistent grids to highlight products, travel photos, or event highlights for Instagram Stories or feed posts, the tool provides the necessary functionality without overwhelming complexity. The export process is direct, though the free version includes a watermark.