You can merge photos vertically or horizontally with Fotoring.
(Up to 10 photos can be merged at once)
Just pick photos you want to merge. Merged result will be appeared right away on the screen.
Adding, deleting and reordering photos can be done in a very easy and intuitive way.
If you want to merge photos side by side, just make your phone to landscape mode.
You can see the merged result at a glance with preview function.
When you save, you can adjust merged size.
Merged photo will be saved in your photo library and you can also share with Email, Twitter, Facebook.
A merged result image may be resized when you share by Email, Twitter or Facebook.
When you save in your photo library, it'll be saved in a size you set.
** Press and hold to edit photos.
Bug fixes and stability improvements.
Ratings and Reviews
Joins photos doesn't merge
Not what I expected as it doesn't deal with overlap in images. You can only join one image to another, not merge them together as a continuous image.
Up to six family members will be able to use this app with Family Sharing enabled.