Go to Simplero Mobile Apps page.
Click on Create Mobile App.

When Adding your branded App in Simplero you’ll need to provide:
Name
Description for the App: Detailed description for app stores (max 4000 characters)
Short description: Brief description for app listings (max 80 characters)
Keywords: Comma-separated keywords for app store search (max 100 characters)
Category (see options on the image attached)
Support url: URL for customer support
Privacy policy url: URL to your privacy policy
Light Mode Icon
JPG or PNG
1024 x 1024px
Must not have transparent pixels
Dark Mode Icon
Same specs as above
Light mode splash screen
Light background + dark logo
Base design:
PNG
2732 × 2732 px (safe for all devices)
Recommended:
Keep logo centered
Leave padding (avoid edges)
Dark mode splash screen
Dark background + light logo
Same specs as above
For Apple (specs here)
iPhone 6.9" Display
Up to 10 screenshots for iPhone 6.9" (1320 x 2868 pixels)
iPad 13" Display
Up to 10 screenshots for iPad 13" Display (2064 x 2752 pixels)
Copyright
The name of the person or entity that owns the exclusive rights to your app, preceded by the year the rights were obtained (for example, "2008 Acme Inc."). Do not provide a URL.
For Android (specs here)
Feature graphic
PNG or JPEG, up to 15 MB and 1,024 px by 500 px
Phone screenshots
Upload 2–8 phone screenshots.
Screenshots must be PNG or JPEG, up to 8 MB each, 16:9 or 9:16 aspect ratio, with each side between 320 px and 3,840 px
7-inch tablet screenshots
Upload up to eight 7-inch tablet screenshots. Screenshots must be PNG or JPEG, up to 8 MB each, 16:9 or 9:16 aspect ratio, with each side between 320 px and 3,840 px
10-inch tablet screenshots
Upload up to eight 10-inch tablet screenshots. Screenshots must be PNG or JPEG, up to 8 MB each, 16:9 or 9:16 aspect ratio, with each side between 1,080 px and 7,680 px
You can use tools like Screenshots generator to get these done: https://shipmobilefast.com/asset-generator
Help & Knowledge Base
Help & Knowledge Base