Zhen Han
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Zhen Han

iOS|Mobile Phone|iPhone App&Application&Game Developer/Development


dandong, China


Honest, skilled, experienced and dedicated mobile developer with more than 10 years development experience. I started developing with c++ language and expert in linux and unix system with deep knowledge in various programming languages and tools like java, PHP and ASP.NET. 5 years ago I was very impressed in macOSx and started developing iPhone/iPad and macOS apps. Now, I can say I am a TOP iOS and Android developer confidently. ☆ As a freelancer, Client Satisfaction with best qualified and fastest result is my Top Priority. ☆ I have been working in oDesk for a long time and I am proud of my result satisfied ... moreall my clients and they want to work with me for many more projects. If you work with me, you will be satisfied not only with result but also with progressive suggestions and dedicated service in UI/UX design as well as advertising & marketing app. TOP APP does not mean complex and feature-rich. Simple, yet good idea app without bugs can be lead to success based on nice-looking design and appropriate advertisement. I am not limited in various kinds of mobile apps and recent tools & libraries. Below you can see the parts that I have good experiences in. - Xcode/ ObjectiveC, iOS SDK, iOS5, iOS6, iPhone4 & iPhone5, iPad3 & iPad Mini. - Android Native SDK, PhoneGap, Sencha Touch, Corona SDK. - Webservice Backend API development using PHP, JSON and/or XML. - Great UI/UX design and customization. - Social Networking Mobile App & Web Backend development, Social Media Integration such as Twitter, Facebook, Instagram, Youtube and Google+. - GoogleMap and Location Service Integration. - Photo Manipulation app development including customized filters and collage. - Augmented Reality Mobile App development using Vuforia and Metaio SDK. - Push Notification, iCal, iCloud and Dropbox integration - InApp Purchase, Paypal, Admob, Adwhirl integration - ThirdParty SDKs integration like Testflight, Flurry, Places and Localytics. - 2D&3D game development using Cocos2DX and Unity3D. - Github, SVN and JIRA. - And much more.. Thanks for your reading. Please feel free to contact me anytime when you need App or when you have trouble. I love discussing things with you. less

Zhen Han has added 2 portfolio pieces. Create an account to review them.

Work History and Feedback

  • Jul 2013

    iPad OpenGL expert required
    $560.00 earned
    Fixed Price

  • May 2013 - Jun 2013

    Clock timer

    No feedback given

    $111.11 earned
    Fixed Price

  • May 2013 - Jun 2013

    multiplatform mobile app iOS & Andriod
    Zhen was a gem to work with. He kept me up to date on the projects progress and updated me often. Zhen is a excellent programmer. He does great work with iOS and Android and works quickly. I will hire Zhen again!
    20 hours
    $40.00 / hr
    $800.00 earned

  • May 2013

    Hunting Application
    Zhen is great, and provides quick, quality work. Due to funding we will not precede with the project for another month or so. I will re-hire him.
    3 hours
    $40.00 / hr
    $26.67 earned

  • Apr 2013 - May 2013

    Perfectionist iPad Developer Needed
    225 hours
    $40.00 / hr
    $9,006.66 earned

  • Aug 2012

    Upgrade Mac App
    By far the best programmer I've ever hired, and I will most certainly use him again. Defiantly would recommend him. Thank you Zhen Han!
    18 hours
    $30.00 / hr
    $549.90 earned

  • View More (5)

Zhen Han has more jobs to show. Create an account to review them.


Name Score (out of 5) Time to Complete
Google Android Programming Test 4.60 Top 10% 16 mins
MySQL 5.0 Test 4.60 Top 10% 26 mins
Cocoa programming for Mac OS X 10.5 Test 4.90 Above Average 24 mins
JavaScript 1.8 Test 4.50 Top 20% 29 mins
PHP5 Test 4.50 Top 10% 11 mins
Java Test 3.90 Top 10% 35 mins
HTML 4.01 Test 4.25 Top 10% 20 mins
iPhone Programming OS 4.0 Test 4.75 Top 30% 19 mins
U.S. English Basic Skills Test 4.25 Top 20% 25 mins
What's the difference?

Work History

3,276 hours worked
38 jobs


More than 30 hrs/week