Repository
https://github.com/afollestad/photo-affix
Introduction
PhotoAffix BETA allows you to combine photos together in vertical or horizontal orientation to create one single image. A common use case for this is to create multiple device art screenshots of an app, and combine together to make a showcase image
Features
There are not too many features on this app and some of the available features include
Stacking of photos horizontally or vertically, When you download the app and open it looks like this
You then click on the arrow facing down to show all the features of the app
So you click on the first of the of the list which is stack horizontally if you want it changed back to vertical
Another feature is the background fill, this has to do with the colour of the background when two pictures might have been stacked together, just click on the background fill button and it displays the various kind of colors you can pick from
Image spacing is another feature on the App, this one allows you to be able to space the images whether it's in horizontal or vertical form and you are able to choose the amount of space between the pictures, just click on the image spacing button and you will be able to use this feature
The last feature on this app is actually my favourite, it allows users to be able to scale larger images to the smallest and the smaller images to the largest, Just by clicking on the feature button which is last on the drop down list
The photo affix app for me is the best app for stacking images because there isn't any unnecessary ads on the app, the app does what you want it to do in minutes, doesn't freeze up or crashes unexpectedly like some other apps, if you ever need a app for stacking images together this is your app.