More than 500 million people are using Messenger each month, says the social networking giant. Messenger is Facebook’s instant messaging app, which was also the company’s first standalone app launched in 2011. The company made it mandatory for users to download Messenger to send and receive messages on Facebook, in July this year. Facebook also owns messaging apps WhatsApp,which the company acquired in February this year.

The Economist has launched The Economist Espresso, the first daily edition in the publication’s 171-year history. The Economist Espresso, available as an Android and iOS app, will be updated daily each weekday morning in three editions for the Americas, Europe and Asia, says the media giant. Access to the app’s content is free for the first 30-days, and will cost $3.95 a month. Readers can access one article a day without paying.

Logitech unveiled a new $70 Bluetooth keyboard for iPads. Called Keys-To-Go, the keyboard is 6.1 mm and weighs 180 grams. The keys give users tactile feedback similarly to laptop keys, and come with a water-repellant covering that the company says protects it from spills. The rechargeable battery can last up to three months on a complete charge.