so here’s a straightforward rundown from my experience.
'Telegram' is the clearest winner if
you want animated (and even mature) sticker packs that are
easy to find and install. It supports animated stickers (Lottie/JSON) and sticker packs are widely shared; many creators distribute adult-themed packs there with minimal friction. '
discord' also supports animated emoji, but you need Nitro to use them across servers — servers themselves can host animated emoji that show up for members depending on permissions, and some communities gate mature content behind NSFW channels. For private chats you can send GIFs from Tenor/Giphy too.
'WhatsApp' now supports animated stickers (WebP) and there are plenty of third-party WAStickerApps that package mature sticker packs; you can also make your own with a sticker maker app. 'Signal' recently added animated sticker support as well, and creators can publish packs — though Signal and WhatsApp both enforce content policies more strictly than Telegram, so extremely explicit packs sometimes get pulled. For keyboards, 'Gboard' and 'SwiftKey' give quick access to GIFs from Tenor/GIPHY so mature GIFs may appear depending on search filters.
A few notes: file format matters (Lottie/APNG for Telegram, WebP for WhatsApp), and app rules or store policies can change, so expect some sticker packs to disappear. I usually stick to Telegram for variety and Discord for private community sharing — feels like the best combo for animated mature stickers in my chats.