In the following sentence, is the usage of "such as" correct if I would like that "Waze" and "LocoPing" be considered as examples of both Location-based services(LBSs) and Proximity-based applications? also should I put a comma before "such as" and "that"?

In recent years, we have seen the emergence of a new trend of location-based services (LBSs) and proximity-based applications such as Waze, LocoPing that require users to share their locations.

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    The quote communicates your intentions quite well. – Lawrence Sep 29 '17 at 9:50
  • I think the details obscure the real Question, unless Usage of “such as” with “and” was a mistake. Several queries: Why not Waze and LocoPing? Why LBS(s) but not PBA(s)? More, is the real question whether the trend is for LBS and PBA, both including Waze and LocoPing… or for LBS and PBA, Waze and LocoPing being examples of PBA? – Robbie Goodwin Sep 29 '17 at 23:48

Such as introduces examples, or things we mention. We would also place a comma before "such as" when we introduce a list, such as in your sentence.

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