When comparing LinuxKidX vs Doudou, the Slant community recommends Doudou for most people. In the question“What is the best Linux distribution for children?” Doudou is ranked 2nd while LinuxKidX is ranked 3rd. The most important reason people chose Doudou is:
From the pre installed apps to the interface everything about this distribution is dead simple. No necessary set up, just boot and go.
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Pros
Pro Live CD
With the Live CD users can test and use the software without having to install the OS. The Live CD will also function no matter the OS on the device at the time.
Pro Concise "all in one" kid experience
From the pre installed apps to the interface everything about this distribution is dead simple. No necessary set up, just boot and go.
Pro Installable live cd
DouDouLinux comes as a live cd, meaning this distribution can be used on any computer not matter the OS in Live CD mode as well as installed fully onto the device depending on the hardware support.
Cons
Con Much of the support material is in Portuguese
LinuxKidX does have an english language version, but much of the support material is in Portuguese, so finding help if issues arise may be a problem.
Con Based on an old distro
DouDou Linux is based on Debian 5, which is pretty old. So this means the software found in the distribution will be old. This also means the hardware support will be lacking compared to newer based distros. So for those that do want to install it would be a good idea to make sure the hardware is supported by Debian 5 and DouDou Linux.