Embarcadero has released a free Accessibility pack for Delphi XE7 Firemonkey for Windows and Mac OSX. The accessibility pack brings screen reader support to Firemonkey using the Microsoft Active Accessibility architecture and the OSX accessibility protocol (Apple VoiceOver). It appears to be as easy as added a couple units to your uses clause and using TAccForm which is derived from TForm. Here is the sample uses clause from the documentation:
System.SysUtils, System.Types, System.UITypes, System.Rtti,
System.Classes, System.Variants, FMX.Types, FMX.Controls, FMX.Forms,
FMX.Dialogs, FMX.StdCtrls, FMX.ScreenReaderCommon
There is built in accessibility support for the following Firemonkey controls: TButton, TSpeedButton, TTracker, TEdit, TListBox, TComboBox, TComboEdit, TSpinBox, TLabel, TCheckBox, TRadioButton, TMainMenu, TMemo, TTreeView, and TCustomGrid. If you need to have accessibility support in your own controls there are also instructions for using the IFMXAccessibility interface. I would guess this library also works with AppMethod and we have covered the Delphi XE6 Firemonkey Accessibility pack here.