Message Format

iOS

• Message Length:
  • iOS Lock Screen: 110 Characters
  • iOS Notification Center: 110 Characters
  • iOS Banner Alert: 62 Characters
  • iOS Pop Up Alert: 235 Characters
• Payload Size:
  • iOS: 2KB
• Number of Lines:
  • iOS Lock Screen: 4 Lines
  • iOS Notification Center: 4 Lines
  • iOS Banner Alert: 2 Lines
  • iOS Pop Up Alert: 8 Lines
• Customizable UI: No
• Deep Link Capable: Yes

iOS Image Sizes

Aspect Ratio	Recommended Image Size	Maximum Image Size	File Types
2:1 (recommended)	500KB	5MB	PNG, JPG, GIF

iOS Example

iOS Large Image Format Example

Android

• Message Length:
  • Lock Screen: 1 line (estimated 49 characters max)
  • Notification Drawer: 1 line, up to 8 lines when expanded (estimated 597 characters max)
• Payload Size:
  • FCM: 4KB
• Customizable UI: Yes
• Deep Link Capable: Yes

Android Image Sizes

Type	Aspect Ratio	Recommended Image Size	Maximum Image Size	File Types
Push Icon	1:1 (400x400 pixels minimum)	500KB	N/A - however a balance should be struck between quality and size	PNG, JPG
Expanded Notification Image	2:1 (600x300 pixels minimum)	500KB	N/A - however a balance should be struck between quality and size	PNG, JPG

• Smaller, high quality images will load faster, so it’s recommended to use the smallest asset possible to achieve your desired output.

Android Example

Large Image Format Example

• Large image notifications display best when using an image of at least 600x300 pixels

Windows Universal

• Message Length: Depends on Device
• Payload Size: 3 kilobytes
• Number of lines: 1-3 Lines
• Customizable UI: No
• Deep Link Capable: No

Windows Universal Example

Windows Phone 8

• Message Length: Varies. If only title is set, about 40 characters can be displayed. If only content is set, about 47 characters can be displayed. If title and content is set, then about 41 characters can be displayed.
• Payload Size: 5 kilobytes
• Number of lines: 1
• Customizable UI: No
• Deep Link Capable: No

Windows Phone 8 Example