As of 2018, there are some 2.53 billion smartphone users in the world. This number is expected to rise substantially over the next two years, possibly even passing the five billion mark by 2019. Whether you’re an iPhone or Android user, chances are you’re reading this on a digital device right now, and that you’ll spend at least a few more hours today engaging in activity on one of your smartphone’s apps.

The first generation iPhone was released on June 29, 2007, changing the landscape of the technological and social world forever. When Steve Jobs founded Apple back in the spring of 1976, he never could have predicted that some forty years later, close to the entire population on Earth would be using his inventions on a daily, casual basis.

No one is loving the smartphone revolution more than business owners. In an increasingly digital world, entrepreneurs faced with digital fatigue are learning that you are what you read , and how you choose to spend your digital life matters.

With the new year rapidly approaching, it may be time to ask yourself about your consumption of online media. If the contents of your phone were exposed to a stranger, what would they think of you? Would they see the signs of an ambitious intellect or a Facebook-addicted sloth? Courtesy of top app development agencies honing in on the promising new leaders in the tech space, here are five free apps that will keep your brain sharp.

Night Sky

Scientists have loved this stunning, immersive astronomy app for a while, but it’s becoming popular amongst laypeople, too. Open the app to view your favorite constellations, explore celestial bodies, and zoom in on planets to get an up-close-and-personal look at the heavens above. Upgrade to a paid subscription and peruse the skies more intimately with “sky tours” and more.

Artsy

A social network for the modern art historian, this app allows you to curate a collection of your favorite historical and contemporary paintings all in one convenient place. The layout of the app is slick and minimalist, making it easy to navigate. It also provides the opportunity for art collectors to invest in pieces at the touch of their screen.

Evernote

This is the productivity app business owners have been dreaming of for years. It is marketed as being able to help you “capture and prioritize ideas, projects, and to-do lists so nothing falls through the cracks.” Evernote is essentially the modern equivalent to the bedside notepad, where snippets of half-imagined thoughts can be formatted into rich text and re-examined in the light of day. Best of all, the built-in camera tool allows you to manually scan documents and input them directly into digital format. Nothing of value will ever be lost.

Headspace

The meditation app for the modern worker, Headspace appeals to skeptics and spiritual fanatics alike. It uses psychologist-approved techniques to help guide you through brief meditations and teach you the practical principles of mindfulness. No matter what your religious beliefs might be, this meditation app helps stressed-out business people relax and reach their highest potential. A paid subscription gets you access to even more exciting content. You’ll be reaching your zen state in no time.

Longreads

A collective for all the best longform journalism on the web, this app provides you instant, up-to-the-minute access to the most important news stories. If you find yourself getting overwhelmed by constant clickbait and advertorial content, this app is useful at helping you narrow down your search for high-quality, fact-checked, professional journalism.