Thanks for the reply. Yup, that's the basic concern about your Sony's app.
Could you tell me where is that actual manual for the iPhone users?
The only thing I found about Playmemories Mobile "support" page briefly talking about iOS users is this one : http://support.d-imaging.sony.co.jp/www/disoft/int/playmemories-mobile/fr/qa/index.html
Not really an actual proper manual actually... And doesn't answer my basin question of deleting actual photos on the app.
Haven't found any PDf manual neither on your site..
Please help me figure out about that issue.