Guidelines

Guidelines


Apple iMessage Stickers

Stickers offer a fun, engaging way for people to express themselves in a conversation without typing or using emojis. A sticker is an image or an animation that can be sent or placed on messages, photos, and other stickers to add emphasis and communicate emotion.

Design for expressiveness. People use stickers to visually convey moods and reactions. Strive to deliver stickers that connect with people at an emotional level. Consider incorporating imagery, words, and phrases to add new dimensions to conversations.

Think globally. Messaging is a universal form of communication. Aim for stickers that have broad, international appeal.

Add vitality through animation. Although stickers can be static images, animated stickers are a great way to impart energy in a conversation. Be sure to use a frame rate high enough to keep motion fluid.

Test placement possibilities. Users can scale, rotate, and place stickers over parts of a conversation. Make sure your stickers are legible against different colors and imagery, regardless of their position or size.

Consider using vibrant colors and transparency. Vivid colors add richness and excitement to a conversation. Transparency allows meaningful placement of stickers onto messages, photos and other stickers.

Dimensions

Messages supports three sticker sizes: Small (300px) / Regular (408px) / Large (618px). These are displayed in a grid-based sticker browser.

Pick a size that works best for your content and prepare all of your stickers at that size. We recommend publishing at 618px as we can resize dynamically.

Formats

Messages supports stickers in the following file formats:

Filesize

Be mindful of file size restrictions. For efficiency, each individual sticker may not exceed 500KB. Note that Xcode saves PNG animations using a 24-bit palette, which may lead to larger than expected file sizes.

Details

Name. The name of your app should be in your primary language and is limited to no longer than 50 characters. We recommend it be up to 23 characters for optimal presentation on iOS devices.

Description. The ideal description is a concise, attention-grabbing paragraph followed by a short list of main features. You can also provide localized versions of your description.

Category. You can list your sticker pack in the Stickers category or another category that best describes your app. You can also list it in a second relevant category.

Keywords. Carefully choose your keywords to ensure your app is easily discoverable in App Store search. Keywords are limited to 100 characters total, with words separated by commas.


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