No. You can do it all on phone.
Set the SAVE to GALLERY or SCREEN SHOTS. (or direct to EDITOR)
Timer delay to NONE.
From GALLERY to EDITOR (resize=750 is good width)
PHOTOBUCKET. [IMG) link.
FORUM. Use REPLY not QUICK-REPLY. No time limit. Use PREVIEW. Wrong? Cancel. Re-edit. Try again.
Good luck.