Hey Stewart,
The difference of the Top 10 Robots to the Expert Advisor packages is that on the Top 10 Robots app, is that on the packages you get more robots than on the Top 10 Robots App.
On the Top 10 Robots App, you get the Top 10 performing robots on the available pairs so that you do not need to search on which are they as they are displayed on the App and you can get them faster.
In case you want more options though, the Expert Advisors packages is worth it!
If you have any more questions, let me know!
Kind Regards,
Nikos