The process is as follows:
The Express Generator runs 24 hours a day, creating EAs based on certain criteria. Every Saturday, the Collections – old and new are analyzed and the best strategies are added to the app. The older strategies don’t disappear or get deleted, they’re kept and analysed weekly. Should one of the older strategies perform best on the backtest in that week, in relation to the others, it will be re-added.
But, if you’ve downloaded the ‘old’ robots, and you have them trading on a another account – demo or otherwise – you still have access to them and can use them at any time.
Thanks,
Ilan