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 camera 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 or Amazon Fire Tv
- 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
D40 D60 D70 D90 D700D750 (wifi) D3000 D3100 D3200 (wifi using WU-1a) D3300 (wifi using WU-1a) Coolpix P600 (wifi) Coolpix P900 (wifi)
Pro
D3 D40X D200 D300S D600 (wifi using Wu-1b) D610 (wifi using Wu-1b) D800 D800E D810 D5000 D5100 D5200 (wifi using WU-1a) D5300 (wifi) D5500 (wifi) D7000 D7100 (wifi using WU-1a) D7200 (wifi)

Canon:
Lite
20D 40D (wifi using WFT-E3A) REBEL XTi REBEL XSi M (usb) M2 (wifi) M3 (wifi) M10 (wifi)
Pro
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 T5i T6i (wifi) T6s (wifi) T3 T5 T6 (wifi)