Let’s see, it says “The Premium version allows using the application full functionality for one My Kaspersky account only.”. It is here to provide additional information, e.g. reply a possible question: “How many My Kaspersky accounts can I use with Premium version?”. It is not a benefit of Premium version, as Free can be used with My Kaspersky account as well. The phrase “One My Kaspersky account can be connected to 100 children profiles and 500 devices.” is not related to Premium/Free differences, it is about limitations of My Kaspersky account + Safe Kids.