What image sizes do I need to use ?

The following sizes will cover both iOS and Android versions of your app:

Smartphone App:

• App icons: 192 x 192 px
• Launch image:
  - 19.5:9 format, 1125 x 2436 pixels or greater for i Phone X
  - 18.5:9 format, 1080 x 2220 pixels or greater for Pixel 2 XL, Galaxy, Galaxy Note, Lg V30, etc
  - 16:9 format, 750 x 1134  pixels or greater for iPhone 6+ / 6 / 5S / 5C / 5; Nexus, HTC, Galaxy, Optimus, Moto X, etc
• Home image:
  - 15.5:9 format, 1125 x 2304 pixels or greater for iPhone X
  - 18.5:9 format, 1080 x 2220 pixels or greater for Pixel 2 XL, Galaxy, Galaxy Note, Lg V30, etc
  - 16:9 format, 750 x 1134  pixels or greater for iPhone 6+ / 6 / 5S / 5C / 5; Nexus, HTC, Galaxy, Optimus, Moto X, etc
• Navigation bar image: 1440x135 px

Universal iPhone/iPad App (only existing owners of such apps):

• Home / Launch image (portrait): 1536 x 2048 px      

Publish info: 

• iTunes artwork: 1024 x 1024 px
• Google Play artwork: 512 x 512 px
• Google Play feature graphic: 1024 x 500 px

App sections:

• Icons: 180 x 180 px
• Leading images for sections: 640 x 400 px
• Places leading image: 640 x 300 px
• People module leading image: 640 x 640 px

NOTE: Preferred format for all images in .png