Free member: you must add a link to Flaticon and credit the author in exchange for using the icons and stickers. To credit the author, you must use Designed by Flaticon in case the icons/stickers were made by Flaticon, or the author's name in other case. Remember that as a free user, you can only download individual PNG icons.
Premium member: you can use the icons/stickers without crediting the author, be it Flaticon or one of our contributors. Additionally, you will have access to all our icons in SVG/EPS, PSD and BASE 64 formats available only for premium users.