The marketing screenshots every App Store and Play Store listing needs, from raw capture to a folder of store-ready PNGs.
The store shows a flat capture on white, no headline, no context. People scroll past. Mockstack turns the same file into something they stop on.
Same screenshot, six totally different listings. The whole library is in the tool, these are screenshots of what's inside.
Compose once. Mockstack re-renders the same composition at each store's exact dimensions, a fresh canvas per size, never a padded or upscaled master.
Your work saves to your own browser as you go.
Drop a screenshot into a slot, or bulk-upload your whole set into the screenshot library. Mockstack reads each image's aspect ratio, picks the device frame that fits, and samples the dominant and accent colours from your app's own UI. Everything happens on your machine, nothing is uploaded.
Choose from curated solids, gradients, and meshes, or use one of the four backgrounds derived from the colors already in your screenshot, brand, duo, tint, and shade. Deriving the background from the app is what makes a set look designed rather than assembled; it ties the listing back to the product without you hunting for hex codes.
Pick a device frame, iPhone, iPhone with notch, iPad, Android, Android tablet, and then a layout: one screen shown large, two side by side, or three fanned with depth. Tilt presets handle the angles. One screen large is right for a hero feature; the fan works when you're showing a flow rather than a single screen.
Add a headline and a subline. Both are sized for legibility at store thumbnail scale by default, which is the constraint most screenshot sets get wrong, a caption that reads fine on your monitor is decoration at one-sixth size. If a feature needs pointing at, drag on an arrow, a NEW badge, or a label and recolor it. Our copywriting guide covers what to actually write.
Export a single PNG at the current canvas size, or take the whole set: a ZIP with your design re-rendered at every required App Store and Play Store dimension, each one drawn fresh at native resolution rather than scaled from a master. Files come out named by screen order and size, ready to upload.
A listing is never one screenshot. The parts that matter show up on the fifth one, and on the release after this one.
Both stores accept up to ten marketing images per listing, and one Mockstack project holds all ten. Each image gets its own design and its own screenshots, and you can reorder or rename them so they upload in the order shoppers will see them. They share one screenshot library, so the same capture can appear in several without re-uploading. "Review all" renders the full set at once, which is the quickest way to spot a listing that drifts halfway through.
Six compositions load a full design in one click. Snapshot any state as a comp and come back to it, or export a template file and re-import it next release, which is what keeps a redesign from costing you the screenshots a second time. Undo and redo cover every control.
Work autosaves locally, so a refresh doesn't lose anything. Exports carry a small attribution in the corner; you choose its position and orientation. Anything you make is yours to use on either store, your site, or paid ads.
Sixty seconds and you'll have a screenshot you're proud to put on the store.
Or read the six controls it gives you, or the FAQ.