This app is an alternative (and more) to the official apps. Of course I do not have the same resources (I have a 6D) as these global players. Therefore not all cameras can be compatible. Try it yourself if yours is. Feel happy and enjoy if it is working. Don't be angry if it's not!
And please don't use ratings to contact me. I have email ;)
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Connect your DSLR with your phone via usb or wifi. Connect your Chromecast as well to share the pictures your are shooting directly to other people.
This app is the reason why gps&wifi suddenly makes sense for your DSLR.

Features:
- Connect via wifi or usb
- View all pictures on the camera in a nice grid.
- Quick loading of jpg and raw files (CR2 and NEF).
- Directly share pictures from camera to other apps (like Whatsapp Instagram Facebook)
- Download complete files from camera
- Use Partymode to shoot pictures and show them immediately (tethered shooting)
- Cast pictures to your Chromecast
- Remote capture
- Video capture
- See Serial no. and Shutter Counter
- Connect your camera to the hotspot of your phone if no wifi is available
(Hint: use the same ssid/pwd-combination for your hotspot and you don't
need to reconfigure your camera and chromecast when using the hotspot)
- set up your own photobooth by using your phone as screen or cast to a bigger screen
- see protected files
- Bulb Capture
- Focus Bracketing

Features of paid version:
Lite
- no ads
- show Exif data (including gps-data)
- bulk download
- filter current view (raw jpeg videos protected files)
Pro
- Liveview with Camera Control
- Photobooth with Liveview
- Partymode/Burstmode (shoot & show)

Currently compatible cameras
(Important: your mobile device must support usb-host-mode to connect to your camera via usb)
Nikon
(Important: You will have to uninstall the official app when using wifi. it is interfering the connection.)
Lite (NO liveview! NO Pro features!)
D40 D50 D60 D70 D70s D80 D3000 D3100 D3200 D3300 Coolpix P600 (wifi) Coolpix P900 (wifi)
Pro
Df
D3
D4
D4s
D5
D40X
D90
D200
D300S
D600 (wifi using Wu-1b)
D610 (wifi using Wu-1b)
D700
D750 (wifi)
D800
D800E
D810
D3400
D5000
D5100
D5200 (wifi using WU-1a)
D5300 (wifi)
D5500 (wifi)
D7000
D7100 (wifi using WU-1a)
D7200 (wifi)

Canon:
Lite (NO liveview! NO Pro features!)
20D 40D (wifi using WFT-E3A) REBEL XTi REBEL XSi M3 (wifi) M5 (wifi) M6 (wifi) M100 (wifi)
Pro
M10 (wifi)
1Ds Mark III (wifi using WFT-E2)
1D X (wifi using WFT-E6)
1D X Mark II (wifi using WFT-E8)
1D Mark IV (wifi using WFT-E2 II)
5D Mark II (wifi using WFT-E4 II)
5D Mark III
5D Mark IV (wifi)
5DS 6D (wifi)
6D Mark II (wifi)
EOS 7D
7D Mark II (wifi using W-E1)
50D
60D
70D (wifi)
80D (wifi)
REBEL SL1
REBEL T1i
REBEL T2i
REBEL T3i
REBEL T4i
REBEL T5i
REBEL T6i (wifi)
REBEL T6s (wifi)
REBEL T3
REBEL T5
REBEL T6 (wifi)