Imessage Apps And Stickers

What this skill does

This skill enables the creation and deployment of iMessage sticker packs and apps tailored to Apple’s human interface guidelines. It focuses on designing stickers in one consistent size—small, regular, or large—using specific pixel dimensions at @3x resolution to ensure crisp display on iOS devices. Stickers must be under 500 KB and can use PNG, APNG, GIF, or JPEG formats, with animation support available for APNG and GIF. The skill also covers how stickers are organized in the Messages app grid and addresses platform-specific constraints, such as lack of support on macOS and watchOS.

Who it's for

This skill is ideal for mobile marketers and content strategists aiming to enhance user engagement through branded interactive content on iOS. It suits app growth leads planning campaigns that leverage iMessage’s native sharing environment to boost organic reach and virality. Agencies focused on creative asset production for Apple platforms will also find this skill valuable for guiding design and development teams in meeting Apple’s technical and size requirements while optimizing sticker packs for conversion and retention.

Key workflows

First, choose the sticker size (small, regular, or large) that best fits your content strategy and prepare all images at the corresponding @3x dimensions to maintain visual consistency. Next, optimize file sizes to keep each sticker under 500 KB without sacrificing quality, selecting formats based on whether animation or transparency is needed. Then, assemble the sticker pack ensuring no mixed sizes within a single pack and test how the stickers display in Messages’ grid layout for usability. Finally, verify platform compatibility focusing on iOS and iPadOS support before submitting the pack to the App Store for distribution.

Common questions

Can I mix sticker sizes within one pack? No, Apple requires all stickers in a pack to be the same size category to ensure consistent display. What formats support animation? Animated stickers must use APNG or GIF formats, as PNG and JPEG do not support animation. Is this supported on macOS or watchOS? No, iMessage sticker packs are only supported on iOS and iPadOS devices, not on macOS, watchOS, tvOS, or visionOS.

How to use in Metaflow

Attach this skill to a Metaflow agent task focused on content creation or app marketing to structure the asset production process around Apple’s iMessage guidelines. Expect clear checkpoints for sticker sizing, format selection, and platform compatibility that align with iOS marketing campaigns. This skill integrates seamlessly with workflows targeting app store submissions and user engagement strategies, helping you optimize creative assets for messaging platforms before...

For broader context, see our roundup of marketing skills claude, and read common Claude Code content mistakes for related setup guidance.