They are "similar;" but not "the same."
FA-Red Touch (Strawberry) is a "complete" strawberry; in that it presents the red "ripe" part of the strawberry, along with the "less ripe" (sometime referred to as "green") white flesh of the strawberry.
FA-Juicy Strawberry is all about the ripe red part
only. JS is also a bit more potent; and is somewhat less prone to flavor fade.
The one question, that can almost be guaranteed to be asked, on
any shared recipe is: "I don't have
blank concentrate; can I substitute
blank?" The answer is always going to be the same: "Certainly you can; but you will no longer be making
that recipe." If that is not critical to you... then sub away.

(Some DIYers are only looking for a general blueprint/starting point. While others are interested in tasting precisely what the creator is tasting.)
Depending on the substitution(s), the results can be nearly the same, in the same ballpark, or something quite different. Any given individual may like it less, as much, or more, than the original. And truthfully, the only what to know how they compare, is to taste both versions.