Moved to Forum: Original Link
Not new, been around for a while but for benefit of those Sony camera owners who may not be aware of the app.
Touchless Shutter Ver. 1.01 Free
Useful for Sony cameras with electronic viewfinder.
"With this application, you can simply hold your hand over the eye sensor to release the shutter".
Compatible Cameras;
DSC-HX400V DSC-HX60V DSC-RX100M3 DSC-RX100M4 DSC-RX100M5 DSC-RX10M2 DSC-RX10M3 DSC-RX1RM2 ILCE-6000 ILCE-6300 ILCE-6500 ILCE-7 ILCE-7M2 ILCE-7R ILCE-7RM2 ILCE-7S ILCE-7SM2 NEX-5R NEX-5T NEX-6
Check out other Sony camera free apps link below;
https://www.playmemoriescameraapps.com/portal/
Apparently the Sony A7RIII doesn't allow apps to be installed. Fail.