App Preview Guidelines
Paraphrasing from Create Effective App Screenshots for App Page by Smashing Magazine
Deciding the story direction of the app screenshots. Thought questions to figure out the story direction.
- What problem does my app solve?
- What is unique and special about it? If you can answer this with your app screenshots, you've done your job.
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The main screen and what your app does
Captures the epitome of what your app does. Keep it as clear and self-explanatory as possible. Highlight the core purpose of your app. -
Feature Overviews and What Your App Includes
Explains how your app is set up and how it works. Must be easily understandable. This is your chance to create product differentiation.
PressViewer does this by breaking up a step by step of how to use the app.
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Behavior of Your App and How Your App is Used
Show how your app deviates from traditional functions like tapping and scrolling (swipes! pinches! shakes!). You can add the intended gestures as an overlay to the respective app screenshot as a demonstration. -
Additional Captions to Describe the App
Coachmarks! Very important but don't overdo it. -
Media Mentions and Awards
- Whether you use a solid color or blurred lines, ensure that they don’t interfere with your app screenshot and the message the screenshot sends.
- Consult color palettes to discover interesting color matches you wouldn’t have otherwise considered.
- Less is more. Remember, you are trying to show the viewer what your app really looks like in use.
- Don’t forget to consider customization: create screenshots that appeal to your user’s nationality, culture, language, and so on.
For further reading, go to each Source link.
Source: iTunes App Preview Video Guide Source 2: iTunes Connect Developer Guide Source 3: Design Your App's Product Page Tools: Launckit Screenshot Builder
Manual:
- Creating the walkthrough "story" direction by curating screens
- Writing up coach marks for selected screens
- Edit to avoid "sales feel"
- Create a lifestyle context screenshot (refer to iTunes App Store Trends Wiki Page
Automated:
- Localizing screenshots (Set iPhone or iPad language)
- Removing
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- Status bars
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- Specific pricing structures
- Resizing
All of the screenshot properties
Manual:
- Creating video
- Designating preview poster [https://www.snappymob.com/blog/2015-01-16-how-to-make-an-app-preview/](Snappy Mob blogpost)
Source: https://support.google.com/googleplay/android-developer/answer/1078870?hl=en
To publish your Store Listing, you must provide a minimum of 2 screenshots. Up to eight screenshots for five different devices. ( Phone, Tablet (7 inch & 10 inch), Android TV, and Android Wear. )
Manual: Creating the walkthrough "story" direction by curating screens Writing up coach marks for selected screens
Automated: Resizing for the five different devices.
- JPEG or 24-bit PNG (no alpha)
- Minimum dimension: 320px
- Maximum dimension: 3840px
- The maximum dimension of your screenshot can't be more than twice as long as the minimum dimension.
Youtube video that will be placed as the first thumbnail. Not required.
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32-bit PNG (with alpha)
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Dimensions: 512px by 512px
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Maximum file size: 1024KB
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Where it's displayed
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Your high-res icon is used in various locations on Google Play.
This is required Manual: Design
Automated:
- JPEG or 24-bit PNG (no alpha)
- Dimensions: 1024px by 500px
Source 1:App Screenshots and Images Source 2: Create App Descriptions
Each screenshot must be a .png file in either landscape or portrait orientation, and the file size can't be larger than 2 MB.
For mobile screenshots, each screenshot must be either 768 x 1280, 720 x 1280, or 480 x 800 pixels. For desktop, each screenshot should be at least 768 x 1366 pixels for best display.
Automated Optimally resize for small, medium, wide tiles
The Description page will accept promotional artwork in a number of different sizes. Providing a promotional image in the **2400 x 1200 pixel size **is highly recommended, as this image gives the Windows Store editorial team the most flexibility in featuring your app in various promotional layouts.