Free Apps Friday: Louvre HD, Space Camera,

Are you looking to make your smartphone or tablet more useful? Each week, we collect the latest productivity apps for Android, iOS and Windows Phone; all of which are 100 per cent free! Here are this week's highlights.

This is a hand-picked list of free apps we've noticed this week while assembling our regular App Deals roundup of new and discounted apps. We haven't reviewed them and we don't endorse them. As with the main App Deals column, apps can stop being free at a moment's notice if they're discounted, so grab them quickly if you're interested.

Android

Louvre HDFrom the publisher's description: "The application contains a collection of 2300 paintings of the Louvre Museum. Here you will find the works of Raphael, Rembrandt, Da Vinci, Veronese, Delacroix and many other eminent masters of painting."

Slash KeyboardFrom the publisher's description: "Messages are about more than just words, so we think your keyboard should be about more than just letters. Slash gives you quick access to the things you share every day like photos, places, music, GIFs, stickers, emoji and more. "

Air LauncherFrom the publisher's description: "Freedom，humanization，infinite possibilities: the most beautiful Launcher you've ever seen."

Widgets for Gmail / InboxFrom the publisher's description: "Let your wallpaper shine with a transparent (or semi-transparent) widget."

Cube LauncherFrom the publisher's description: "Cube Launcher is a simple launcher. This launcher is easy to use and saves your battery lifetime. You are able to add your favourite apps to the Cube Access Area. You will see it on any screen which means you can open your favourite apps from any screen."

Fiesta by TangoFrom the publisher's description: "Fiesta by Tango is the place to meet new friends nearby and around the world."

iOS

Alien Sky – Space CameraFrom the publisher's description: "Ctrl+C like a clipboard in widget and you can copy words automatically in it. It's a useful, simple and quick tool. Help you to copy and edit words. All you need to do is copy words and pull down Notification Center, then Ctrl+C in widget will record these contents automatically."

DreamZFrom the publisher's description: "Have you ever wanted to fly? be famous? get back in time?? In a lucid dream – you can achieve all of those!"

FraxFrom the publisher's description: "Frax is an art program that puts the "equations of nature" in the palm of your hand. Frax is powered by fractal geometry, the same principle that creates patterns of self-similarity in our natural world."

Rocket Video Cast for ChromecastFrom the publisher's description: "Unleash your Chromecast with Rocket Video Cast. With Rocket you can browse the web and stream any web video on your Chromecast attached TV, and you can even downloaded those videos and cast them later."

Meals DiaryFrom the publisher's description: "Add all the nutrients(38) of the foods and drinks chosen by you to the Health App in just two clicks on your iPhone screen."

JunglatorFrom the publisher's description: "Junglator is an interactive Jungle and Drum'N'Bass app. It works by following the expression of your fingertips to create flowing beats and rhythms. "

OverFrom the publisher's description: "Start a ton of projects and finish them (or not) later! You can rename, duplicate and delete."

Windows Phone

Calendar for BusinessFrom the publisher's description: "This app is a calendar client for business user. This app offers many features."

WPShortcuts All In OneFrom the publisher's description: "An Effective All In One Shortcuts App designed for Windows Phone Access all Shortcuts Fast! Modern eye catching design! ease of use."

Steps Pedometer & Steps Counter Track Walk PROFrom the publisher's description: "Track your everyday steps, calories burnt and distance traveled. Works in background unlike other step counters. Always on and maintains complete Activity Record."

Phototastic CollageFrom the publisher's description: "Create fantastic looking collages of your photos with Phototastic! The app packed with unlimited possibilities for creating your perfect photo collage. Keep it simple using a classic design or get fancy with our one of our uniquely designed templates."

Office LensFrom the publisher's description: "Office Lens trims, enhances and makes pictures of whiteboards and docs readable, and saves them to OneNote. You can use Office Lens to convert images to PDF, Word and PowerPoint files too."

Cool TilesFrom the publisher's description: "It has more than 50 tools and shortcuts. You can pin tools to start screen, and you can use your photos the tile."

Arrow LauncherFrom the publisher's description: "Arrow, a Microsoft Garage project, is the simple, personal launcher for Android that offers a radical simplification of the Android experience."

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Source: Free Apps Friday: Louvre HD, Space Camera,