Whois & Analysis for substitutealert.com

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets.

Android's user interface is mainly based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input.

In addition to touchscreen devices, Google has further developed Android TV for televisions, Android Auto for cars, and Android Wear for wrist watches, each with a specialized user interface.

Variants of Android are also used on notebooks, game consoles, digital cameras, and other electronics.

iPad is a line of tablet computers designed, developed and marketed by Apple Inc., which run the iOS mobile operating system.

The first iPad was released on April 3, 2010; the most recent iPad models are the 9.7-inch iPad Pro released on March 31, 2016 and the iPad Mini 4, released on September 9, 2015.

The user interface is built around the device's multi-touch screen, including a virtual keyboard.

The iPad includes built-in Wi-Fi and cellular connectivity on select models.

As of January 2015, there have been over 250 million iPads sold.

iPad tablets are second most popular, by sales, against Android-based ones, since 2013, when Android tablet sales increased by 127%.

iPhone is a line of smartphones designed and marketed by Apple Inc. They run Apple's iOS mobile operating system.

The first generation iPhone was released on June 29, 2007; the most recent iPhone model is the iPhone 7, which was unveiled at a special event on September 7, 2016.

Text messaging, or texting, is the act of composing and sending electronic messages, typically consisting of alphabetic and numeric characters, between two or more users of mobile phones, fixed devices (e.g., desktop computers) or portable devices (e.g., tablet computers or smartphones).

While text messages are usually sent over a phone network, due to the convergence between the telecommunication and broadcasting industries in the 2000s, text messages may also be sent via a cable network or Local Area Network.

The term originally referred to messages sent using the Short Message Service (SMS).

It has grown beyond alphanumeric text to include multimedia messages (known as MMS) containing digital images, videos, and sound content, as well as ideograms known as emoji (happy faces and other icons).

Electronic mail, or email, is a method of exchanging digital messages between people using digital devices such as computers and mobile phones.

Email first entered substantial use in the 1960s and by the mid-1970s had taken the form now recognized as email.

Email operates across computer networks, which today is primarily the Internet.

Some early email systems required the author and the recipient to both be online at the same time, in common with instant messaging.

Today's email systems are based on a store-and-forward model.

Email servers accept, forward, deliver, and store messages.

Neither the users nor their computers are required to be online simultaneously; they need to connect only briefly, typically to a mail server or a webmail interface, for as long as it takes to send or receive messages.