Ariel Crystal
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Ariel Crystal

Expert Mobile developer( iOS, Android, BlackBerry)


Beijing, China


★★★★★ Expert Mobile Application Developer My skill set includes iOS, Android, BlackBerry, Windows Mobile. With the depth and breadth of my experience, I am well prepared to help your software development project succeed. My skills and experiences are following - iPhone/iPod/iPad, Android, BlackBerry, Xamarin, Titanium - Web Service, Ajax, XML, JSON, RSS, SOAP, WSDL - Video/Audio Streaming, Video Editing, Decoding/Encoding - MySQL, SQLite, HTML5, PHP, JSP - Facebook, Twitter - Google Map Service, Foursquare - CoreData, CoreGraphics, Animation - Cocos2D, OpenGL, Corona, Unity3D - Box2D, Chipmunk - Game Center, In-App Purchase, Multiplayer Game - iAd, Adwirl, Admob, Chartboost, TapJoy, Cerebro - ... moreFlurry, Testflight As you can see my profile and portfolio, I am a talent developer. I always try my best to be in the same line with the high technologies. I am proud of my skills and experiences but I don't pretend to do everything. If I can not do I'll clearly say "No, it's not my area". My motto is "Be ahead and Be honest!". Best Regards, Ariel less

Ariel Crystal has added 25 portfolio pieces. Create an account to review them.

Work History and Feedback

  • May 2013 - Jun 2013

    Photography App for iOS (Plus text capabilities)
    $300.00 earned
    Fixed Price

  • Nov 2012

    Android App Developer
    Ariel delivered everything on time and on budget. She did a great job and is an excellent Android developer. She was very pleasant to work with and she went above and beyond project requirements without asking for more pay. I will definitely work with her in the future.
    30 hours
    $33.33 / hr
    $999.90 earned

  • Apr 2012

    Android mapping app developer
    Ariel was great to work with, understood what I needed, and was able to deliver updates and provide the solutions I needed very quickly. Will hire again.
    $500.00 earned
    Fixed Price

  • Mar 2012

    Experienced Android developers (Long Term)
    Great developer. Very knowledgeable and completes task very quickly.
    $204.44 earned
    Fixed Price

  • Oct 2011 - Dec 2011

    App for transport company
    Great job done. I could not be happier with the work done.. It was done Lighting fast.. much faster than I expected and the quality of work done was EXCELLENT. I know that I could not be happier with any other work done.. I was very impressed and I still am .. I will definitely use Ariel for future projects.
    $2,000.00 earned
    Fixed Price

  • Sep 2011

    First iOS, then Android, then maybe BBerry
    This was a very quick "test" project that I used to select a programmer for a broader project. Ariel did great work and I went on to hire her for a number of large projects.
    $222.30 earned
    Fixed Price

Ariel Crystal has more jobs to show. Create an account to review them.


Name Score (out of 5) Time to Complete
PHP5 Test 5.00 1st Place! 15 mins
Facebook Connect Test 4.60 Top 10% 29 mins
Google Android Programming Test 4.60 Top 10% 6 mins
Facebook Connect Test 4.25 Top 10% 34 mins
Programming with C Test 4.40 Top 10% 29 mins
UK English Basic Skills Test 4.75 Top 10% 12 mins
XML 1.0 Test 4.60 Top 30% 9 mins
Programming with C++ Test 4.00 Top 10% 27 mins
Objective C Test 4.75 Top 20% 16 mins
Cocoa programming for Mac OS X 10.5 Test 4.60 Below Average 6 mins
U.S. English Basic Skills Test 4.90 Top 10% 18 mins
iPhone Programming OS 4.0 Test 4.50 Above Average 26 mins
iPhone Programming OS 4.0 Test 4.40 Above Average 23 mins
English Spelling Test (U.S. Version) 4.75 Top 30% 21 mins
What's the difference?

Work History

3,151 hours worked
23 jobs


More than 30 hrs/week


Phone Number: Verified


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