linguistic:translation, quality:corruption
Uses

Text messaging is most often used between private mobile phone users, as a substitute for voice calls in situations where voice communication is impossible or undesirable (e.g., during a school class or a work meeting). Texting is also used to communicate very brief messages, such as informing someone that you will be late or reminding a friend or colleague about a meeting. As with e-mail, informality and brevity have become an accepted part of text messaging. Some text messages such as SMS can also be used for the remote control of home appliances. It is widely used in domotics systems. Some amateurs have also built their own systems to control (some of) their appliances via SMS. A Flash SMS is a type of text message that appears directly on the main screen without user interaction and is not automatically stored in the inbox. It can be useful in cases such as an emergency (e.g., fire alarm) or confidentiality (e.g., one-time password).

SMS has historically been particularly popular in Europe, Asia (excluding Japan; see below), the United States, Australia, and New Zealand, while also gaining influence in Africa. Popularity has grown to a sufficient extent that the term texting (used as a verb meaning the act of mobile phone users sending short messages back and forth) has entered the common lexicon. In 2012, young Asians considered SMS as the most popular mobile phone application. In the same year, 50 percent of American teens send 50 text messages or more per day, making it their most frequent form of communication. In 2004 in China, SMS was very popular and brought service providers significant profit (18 billion short messages were sent in 2001).

It has been a very influential and powerful tool in the Philippines, where in 2008 the average user sent 10–12 text messages a day. The same year, the Philippines alone sent on average over 1 billion text messages a day, more than the annual average SMS volume of the countries in Europe, and even China and India. SMS saw hugely popular in India, where youngsters often exchanged many text messages, and companies provide alerts, infotainment, news, cricket scores updates, railway/airline booking, mobile billing, and banking services on SMS.

Similarly, in 2008, text messaging played a primary role in the implication of former Detroit Mayor Kwame Kilpatrick in an SMS sex scandal. Short messages are particularly popular among young urbanites. In many markets, the service is comparatively cheap. For example, in Australia, a message typically costs between A$ 0.20 and $0.25 to send (some prepaid services charge $0.01 between their own phones), compared with a voice call, which costs somewhere between $0.40 and $2.00 per minute (commonly charged in half-minute blocks). The service is enormously profitable to the service providers. At a typical length of only 190 bytes (including protocol overhead), more than 350 of these messages per minute can be transmitted at the same data rate as a usual voice call (9 kbit/s). There are also free SMS services available, which are often sponsored, that allow sending and receiving SMS from a PC connected to the Internet. Mobile service providers in New Zealand, such as One NZ and Spark New Zealand, provided up to 2000 SMS messages for NZ$10 per month. Users on these plans sent on average 1500 SMS messages every month. Text messaging became so popular that advertising agencies and advertisers jumped into the text messaging business. Services that provide bulk text message sending are also becoming a popular way for clubs, associations, and advertisers to reach a group of opt-in subscribers quickly.

In 2013, research suggested that Internet-based mobile messaging would grow to equal the popularity of SMS by the end of 2013, with nearly 10 trillion messages being sent through each technology. Services such as Facebook Messenger, Snapchat, WhatsApp and Viber have led to a decline in the use of SMS in parts of the world. A survey conducted by MetrixLabs showed that 63% of Baby Boomers, 63% of Generation X, and 67% of Generation Y said that they used instant messengers in place of texting. A Facebook survey showed that 65% of people surveyed thought that messaging applications made group messaging easier.