Downloading Tunacan 1.18.5 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free software for Mac OS X was originally designed by Kreuz 45. The application lies within Design & Photo Tools, more precisely Viewers & Editors.
From the developer:
1. Import images
2. Set margin between images
3. Tunacan automatically adjusts size of images and arrange them into one image!
Simple and easy image concatenator. Originally made for concatenating app screenshots to create good-looking app instruction images.
You may want to check out more Mac applications, such as 3D Image Commander, UnCoverIt or TurboCAD Mac Designer, which might be similar to Tunacan.