價格：免費
檔案大小：16.5 MB
版本需求：需要 iOS 7.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
EF Explorer turns your pictures into postcards. Just take a photo of your travel adventures (or choose one from your camera roll), add your message, then send it any way you’d like—via Facebook, email, U.S. mail or all of the above. EF Explorer also handles the printing and mailing, so you can send it instantly.
支援平台：iPhone