Cheng Long

iOS app developer with + 3000 hrs experience on oDesk

Beijing, China



What's the difference?

✫✫✫✫✫ As a freelancer, my dream is success of my client! ✫✫✫✫✫

Here are some my skills on iOS app development.
- XCode 3.2.10, XCode 4.2, XCode 4.3.2, XCode 4.5, xCode 4.6.3, xCode 5
- iOS 4.0, iOS 5.0, iOS 5.1, iOS 6.0, iOS 6.1, iOS 7.0(beta4), iOS 7.0(beta5)
- Social app development
- Newsstand app development
- Location based app development
- Kids app development
- Quiz app development
- Medication app development
- Fitness app development
- Catalog app development
- LifeStyle…


Cheng Long has added 1 portfolio piece. Create an account to review them.

Work History & Feedback

iOS Camera Module Needed

“Cheng was a pleasure to work with. Reliable and easy to get a hold of with excellent coding quality.”
30 hrs @ $33.33/hr
Earned $1,000

Redesign and rewrite of existing iPhone app

“Cheng is wonderful to work with. He's extremely fast, efficient, and communicates extremely well. I speak with him every day and the project never strays too far from either of our expectations.One other thing that I really enjoy working with Cheng is that he's honest as well. He asks when things may go beyond budget (never happened with any other contractor on oDesk) and makes sure he does things as both he and I expect.Finally, Cheng is valuable in giving feedback on how things might be done better. Overall, an excellent developer I'd recommend to anyone (and who I will be recommending to a few other people I know)”
538 hrs @ $33.33/hr
Earned $12,943

Iphone app

“Cheng was excellent to deal with during the development of my iPad App.His technical programming skills are excellent, and his communication skills in English were excellent.Cheng also brought additional skills to this project, including consultation and functional design. He also introduced me to a graphic designer who worked with him to deliver to me a total solution.He was very good at working with me to help me develop both User Interface and functional concepts.He emailed and Skyped regularly, and we worked very well collaboratively to achieve our outcomes.Cheng is an honest and very hard working IT professional.I would highly recommend Cheng as both a technical developer, and someone who can assist with the functional design of an App.Thank you very much Cheng for an excellent job!”
92 hrs @ $30.00/hr
Earned $2,755

Iphone game

“Great developer and designer! Worth money!Recomendation for this man!”
22 hrs @ $33.33/hr
Earned $722

iphone Developer - MCwapi

“Cheng was extremely fast and completed our task to our exact specifications. Bugs were fixed promptly. Cheng is an excellent iPhone developer. If you have a short deadline he's your man. I highly recommend him.”
33 hrs @ $33.33/hr
Earned $1,211

iOS/Android game development

“Cheng was able to deliver exactly what I asked in a very short time. On top of that he gave prompt updates and examples of the work he was doing and provided great assistance to help me understand how oDesk works.I will definitely work with him again in the future.”
5 hrs @ $55.55/hr
Earned $278
Tests Taken
Name Percentile Score

Cocoa programming for Mac OS X 10.5 Test


Facebook Connect Test


Google Android Programming Test


Java Test


JavaScript 1.8 Test


Objective C Test


Programming with C++ Test


U.S. English Basic Skills Test


UK English Basic Skills Test


XML 1.0 Test


iOS 6 Programming Skills Test


iPhone Programming OS 4.0 Test