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2. vCard - Wikipedia

   en.wikipedia.org/wiki/VCard

   vCard. vCard, also known as VCF (Virtual Contact File), is a file format standard for electronic business cards. vCards can be attached to e-mail messages, sent via Multimedia Messaging Service (MMS), on the World Wide Web, instant messaging, NFC or through QR code.

3. Google Wallet - Wikipedia

   en.wikipedia.org/wiki/Google_Wallet

   Users can send and receive funds with others through the GPay app on Android or iOS. A digital card is available to be added to Google Pay for wherever Visa cards are accepted online or in-store. The digital card is only available in the United States of America, but the P2P service is available in two additional countries: India and Singapore.

4. Near-field communication - Wikipedia

   en.wikipedia.org/wiki/Near-field_communication

   This chip is commonly found in smartphones and other NFC devices. Near-field communication ( NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 centimetres (1.6 in) or less. [1] NFC offers a low-speed connection through a simple setup that can be used for the bootstrapping of ...

5. Is it safe to give an app my credit card information? - AOL

   www.aol.com/finance/safe-app-credit-card...

   The bottom line. Popular credit card-based apps such as Uber, Lyft, Google Pay and DoorDash will ask for your credit card information for convenience of use. Considering there are standards that ...

6. Google Pay (payment method) - Wikipedia

   en.wikipedia.org/wiki/Google_Pay_(payment_method)

   Google Pay. Google Pay (formerly Android Pay) is a mobile payment service developed by Google to power in-app, online, and in-person contactless purchases on mobile devices, enabling users to make payments with Android phones, tablets, or watches. Users can authenticate via a PIN, passcode, or biometrics such as 3D face scanning or fingerprint ...

7. Toast, Inc. - Wikipedia

   en.wikipedia.org/wiki/Toast,_Inc.

   US$1.1 billion (2021) Number of employees. 4,500 (Dec 2022) Website. www .toasttab .com. Footnotes / references. [1] [2] Toast, Inc. is an American cloud-based restaurant management software company based in Boston, Massachusetts. The company provides an all-in-one point of sale (POS) system built on the Android operating system.