残念ながらduoに非対応です。
見開きを期待して購入しましたが、duoの形式にすら対応していません。無駄金です。返金申請をしました。
Viewer DUO Reviews: Is It Legit?
Is Viewer DUO Safe?
Not enough ratings yet to assess Viewer DUO.
Is Viewer DUO Legit?
Viewer DUO appears legitimate, with a few gaps. AppsHunter Legitimacy Score for Viewer DUO is 65/100.
Based on 65 of 100 points across 7 verification signals from App Store and developer data.