stands for TrueType Font . It is a standard font format used by Apple and Microsoft. While typically used for alphanumeric text (like Arial or Times New Roman), font files can also contain graphical glyphs—in this case, emojis.
Tools like (from FontTools) and custom scripts can extract the PNG bitmaps and repackage them as COLRv0 or COLRv1. However, this is complex—you’ll lose some resolution and layering.
Apple’s EULA prohibits distributing or modifying system fonts. Downloading a TTF from a third-party site is a violation of copyright, though individual users are rarely pursued. For commercial projects, use an open-source alternative (e.g., Noto Emoji or Twemoji) and style them to look like iOS.
work on most modern Android versions, though some "Pixel" or "Stock Android" devices may require root for system-wide changes. ⚠️ Important Considerations