There are two things to consider:
1. You need to be sure you are comparing the same Location and Language set in both tools? There can be very big differences between 2 countries.
2. To make SECockpit possible, we need to cache data. When you start a new keyword search, we check to see if the keyword is already in the cache. If it's not older than 30 days, we'll return it from the cache, which can also explain the difference.