Daily App: Dance Machine turns your videos into funky dance moves

Dance Machine-The Fun Editor is a new app that lets you take a video clip and turn it into a dance video in just a few minutes. The app falls into photo & video category, but when you pair the right video with some upbeat music, there is a healthy dose of entertainment built right into the app.

When it launches, Dance Machine prompts you to import a video from your Camera Roll. Once you select a video to import, you can select a section of it for your dance clip. The app applies a reverse filter, allowing you to pick a motion that will be repeated in time with the music. You can add multiple video clips if you wish to create a longer compilation.

Once you haven chosen your slice of video, you then can add music from the apps built-in library or from your own music library. Using your own music is a paid option that requires an in-app purchase of US$1.99. The app ships with six music tracks that span a variety of music categories. You also can change the speed of the video and the number of repetitions you wish to include. You can preview the video and either ho back into the editor to make tweaks or save the clip for sharing.

The dance video is automatically saved to your Camera Roll and you also can share it via Message, email, Facebook or Vimeo. Dance Machine is free and watermarks each video you compile, but you can remove the watermark via a $1.99 in-app purchase. This purchase also unlocks your iTunes music library and allows you to import your own music for your dance video clips.

Dance Machine is a quick and easy way to add music to your video, and you can produce some fun results. The over experience is positive, but there are a few features that could use some polishing. Selecting the correct start and end points of a video is a challenge as the controls don't zoom into the clip like they do when you trim video in iOS. You'd be better off editing the clip in iOS and then importing into the Dance Machine app. Also, I could not trim the audio to select my favorite section and was forced to use the song from its opening notes.

Dance Machine-The Fun Editor is available for free from the iOS App Store.

Daily App: Tipcognito is a tip calculator masquerading as email client

Let's face it, many people are horrible at calculating a tip. Not only is the math sometimes challenging, there also is the added pressure of trying to quickly calculate 18 percent of $17.23 while your dinner party stare you down because everyone but you is ready to pay the check.

Don't sweat it the next time you go out to dinner, come prepared with Tipcognito, a handy tip calculator that is disguised as an email app. Tipcognito has the visual appearance of an iPhone app but cleverly uses the search field, navigation buttons and fake email entries to display the tip and the total amount you should pay.

To use Tipcognito, just enter in the bill amount in the search field and use the "+" and "-" buttons to adjust the tip percentage. The tip amount and your total payment (bill + tip) will replace the date and time stamp in a normal email.

Tipcognito is a wonderful app for those times when you want to calculate a tip quickly and discretely. It is available in the iOS App Store as a free app with advertisements or a paid app without ads (US$0.99). It is compatible with the iPhone and requires iOS 6 or later.

Blue Sky for iOS lets you visualize clearer air

Blue Sky is a free iOS app coming out of China, where skies are often gray and air pollution is often out of control. Of course, China isn't alone with that problem. Blue Sky is sponsored by the World Wildlife Federation and an advertising agency, Ogilvy and Mather, based in New York and Shanghai.

Since it's Earth Day, I thought it might be appropriate to point out this little app. It's simple in concept and execution -- you take a photo or select one from your camera roll. With your finger, paint in a bluer sky on the photo you've loaded. It's easier if you have a pretty flat horizon. The app doesn't let you magnify your photo to work in tight places, and there is one and only one brush size.

Blue Sky for iOS

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The app simply serves as an environmental reminder to let you visualize cleaner and clearer skies. The app also lets you add your signature to a petition to state your preference about 'bringing back the blue'. Although the app was designed for a Chinese audience, it works just fine everywhere else. Doug Schiff, Executive Creative Director of OgilvyOne China, said, "Many in China feel only the government can improve the worsening air conditions, but WWF wanted to encourage individuals to think up and support individual initiatives, and this app is a step in that direction."

Blue Sky isn't a sophisticated photo editor by any means. But it packs a little message, and you can certainly do some simple editing to improve your images of cloudy or polluted skies.

The app is not universal, and requires iOS 6.1 or later. It is optimized for the iPhone 5.

Daily App: GoodGuide helps you find green, healthy and socially responsible products

GoodGuide is your guide to all things that are good for you and good for the environment. The guide is available on the web and in a pocketable version that you can carry on your iPhone.

The GoodGuide app for iOS contains ratings for over 210,000 products in a variety of categories, including food, health and beauty aids, pet food, baby care and more. Each item is rated on a scale of 1 to 10 based on its social, health and environmental impact. You can quickly view an item's overall rating as well as detailed ratings for health, safety and environment.

One of the most useful features of GoodGuide is its scanner tool that allows you to scan product barcodes to find out more about the items that you are about to purchase. The app lists information about the brand that makes the product, its ingredients and alternative products that you may be interested in buying.

GoodGuide's biggest drawback is that its product catalog includes only those items that are commercially available in the US. You can use the app outside the US, but the product information will be limited to those items that are available in the US.

GoodGuide is available for free and is compatible with the iPhone. It requires iOS 7.

Daily App: Union is a powerful image blending tool for iOS

Union (U.S. $1.99) is a very well thought out tool that brings Photoshop-type power to your iPad or iPhone. It's the most impressive image blending app I've used, and it works wonders to help you create unique and compelling images.



When using the app, you first load in a background image, for example a landscape photo. Then, you add a foreground image that you want to transplant on top of the background. In the next step, you enter the mask layer by choosing the Magic Wand tool, which allows you to easily remove everything but the person.

The tool removes parts of the image based on similarity in backgrounds and luminance, so it is a lot easier if the background behind the person is more solid in color rather than patterned. If the Magic Wand tool doesn't do the trick, you can manually draw out the parts that don't automatically go away.



Union allows you to let your imagination run wild as you are not limited to only superimposing images. You can make the layers transparent, create double exposures, and more. The app also has extensive undo-redo commands, so you can just step backwards if you don't like what you've created.

Union for iOS

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The app contains tutorial videos, which are much nicer than static help pages. Photos can be exported to your camera roll, Facebook, Twitter, Instagram or via email.



While excellent, the app suffers from a problem that is common among this type of app -- when removing the background, your finger covers the drawing tool, making it tricky to accurately remove an element. Some apps offset the tool from where your finger meets the screen, making the job a lot easier.



Despite this limitation, I was able to manage with the removal tool and created some great shots with little effort. Union is a universal app. It requires iOS 7 or later, and it is optimized for the iPhone 5. Give it a try if you want to create some unique and eye-catching compositions.

A roundup of last week's app reviews on TUAW

Last week was a busy one for app news and announcements, giving your favorite TUAW writers a chance to post some great reviews of the apps that grace their home screens. Here's a quick roundup of our recent reviews -- and a few app roundups -- you may have missed:

• iSpotlight is a news app for following the rich and famous


• Sketch 3 makes a great design tool even better


• Hearthstone: Heroes of Warcraft arrives on iPad with zero compromises


• Breeze by RunKeeper steps up your activity level


• Power Grounds is punishing and playful


• The best Nintendo DS emulator on iOS doesn't require a jailbreak


• Daily App: Xtrapop adds pop culture to your photos as long as you pay up


• In the field with the Canon EOS Remote app for iPhone


• Daily App: Help Me Fly challenges you to solve snap circuit-like puzzles


• Daily App: Cinefy brings Hollywood-style FX to your iPhone or iPad at a cost


• IntroMate creates pro quality video intros on iPad in seconds


• PhotoFlip! annotates iPhone photos but needs work


• Daily App: Trials Frontier comes to iOS with solid mechanics, freemium features

TUAW will be back next week with another round of app reviews, so be sure to drop by to see what's new and what's cool.