Download of Cinepaint 0.24 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is categorized as Design & Photo Tools.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. This free Mac app is an intellectual property of Robin Rowe. The most popular version among the program users is 0.2.
From the developer:
CinePaint is a deep paint image retouching tool that supports higher color fidelity than ordinary painting tools. CinePaint opens high fidelity image file formats such as DPX, 16-bit TIFF, and OpenEXR, and conventional formats like JPEG and PNG. Program its available to download for free and this open source
You may want to check out more Mac applications, such as Movie2Shot, TVPaint Animation or Cuadro, which might be related to Cinepaint.