transit-gui allows rapid and interactive calculation of synthetic planet transits. Its algorithm is based on the solution of the direct problem of planet transits by transformation of double integrals to single ones (Kjurkchieva, Dimitrov, Vladev, Yotov, 2013, MNRAS, in press).
The code requires latest versions of Python 2.x, Scipy, PyQT and transit-lib.
For Windows users we recommend Python(x,y) which includes latest python version along with commonly used scientific packages packed in a user-friendly installation.
You can also download prebuilt Windows version of the transit-gui here.