To create Masa review we checked Masa.ac reputation at lots of sites, including Siteadvisor and MyWOT. Unfortunately, we did not find sufficient information whether Masa is safe for children or does not look fraudulent. We would describe it as legit.
: takahiro hamada still needs more reviews of their project as there is too little data to define the site's trustworthiness. Please be warned that to describe security status of Masa.ac we use data openly available on the Web, thus we cannot guarantee that no scam sites might have been mistakenly considered legit and no fraud or PC issues may occur in this regard. But usually the crowdsourced data we have is pretty accurate. Let's see it below.
Is Masa legit and safe? Masa reviews and fraud and scam reports. Masa.ac review.
Reviews: positive vs negative
Unfortunately, we did not found any user reviews on Masa.ac on the web. That may mean that the domain is not popular enough or well-promoted yet, but it may be still safe and promising.