Look for complete pack creation
Single-image sticker tools are useful, but a full pack is easier to reuse. A strong app should create multiple expressions with one consistent visual identity.
Check preview and export flow
A good preview should show the whole sticker pack clearly before users decide to save or export. The download flow should be obvious on both iPhone and Android.
Prioritize chat readability
Transparent backgrounds, bold outlines, simple poses, and short captions matter more than decorative complexity because stickers are usually viewed at chat size.
