If you have any experience with Rapid Photo Downloader at all, including if you no longer use it, please take this survey:
The responses will make a real difference to the project’s future development. The program collects no analytics whatsoever, so a survey like this is truly helpful.
(If for some reason the DNS record for the URL has not propagated to your part of the world yet, let me know!)
I used to use RPD on Linux, and liked it. When I switched to Windows (for various, unrelated reasons), I had to find an alternative. Now I use DigiKam for copying images from SD cards and network shares. In my use, RPD and DigiKam are completely equivalent.