Acorns did not respond or engage with the survey request.  Apparently Harry Markowitz helps construct the portfolios according to their website.  This is a series of 6 ETF portfolios that can be accessed with small regular amounts starting at $5.

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End User Clients
Advice Process Steps Implementing
Benefits Access to and education about investing
Cost per user per annum Fee based at $1.25 a month for portfolios under $5000 and 0.275% for accounts over this amount
Time saving per client Not applicable
Cost saving per client Not applicable
Integration Unknown
Website embedding Not applicable
White labelled Not applicable
System prerequisite Unknown
Single sign on Not applicable
Data storage Not specified
Privacy standards Not specified
Limits on use Some limits on daily deposits and some delays in accessing money
Disaster recovery and business continuity plans Not specified
AFSL approval Not specified