Emoji Saver 2.0 was just released and contains the newest emojis from Unicode Emoji v11.0. All four brands are supported right from the start: Apple Emojis, EmojiOne Emojis, Twemoji Emojis and Noto Emojis. Hover over the image to switch between brands:

Skin tones are supported as well:

Here they are side by side:

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