A software company, based in New Zealand the most beautiful place in the world.
The best way to reach cntxt is to send an email. It is the only address the company uses, it is read every day, and it goes directly to the people who build the apps rather than to a support desk.
If you need help with one of the apps, write to the same address and say which app it is. Including the version of iOS you are running, the device you are using and a short description of what happened will usually be enough to identify the problem on the first reply. Bug reports and feature requests are equally welcome, and a good number of the features currently shipping started as an email from somebody using the app.
Press enquiries, review copies, promotional codes, partnership proposals and anything else of a commercial nature should also go to that address. Requests from journalists and reviewers are answered as a priority.