I bought this for use on a Nikon D7000. It was not up to what I have seen with other products from Satechi. I could not get the device to pair with my iPhone 4. I worked with tech support's help and never could get it to where I could use it. I went back to my wireless Satechi which I really like. My only complaint with anything that plugs into the side of a Nikon is how vulnerable they are to damage.

Overall it is a decent app. Once you pair the device with the iPhone it works ok in the first two modes. However the Manual mode could do with some improvements.Like other users, when I am doing time lapse photography I find that the intervalometer lacks accuracy. The delays tend to be irregular even when set to a 1s delay (sometimes 2, 3 sec), and sometimes not firing at all. I suspect this has to do with the Bluetooth connection and noise in busy areas.This is especially frustrating when doing time lapse photography during the day.It would also be great if the smallest delay could be less than 1s.Satechi please update this app and improve the connection/signal as well as the functionality.

Two simplest modes work well, but I am taking photos to make time lapse videos. I am using the timed shot function and its set to fire off a 4 second exposure with three seconds between photos. The actual photos that are being taken are each getting exposed for between 3 and 5 seconds instead. Each is different, and so my videos look weird and flickery. Batteries only lasted 3 months before I had to change them... Not 10 years.

Works really well, and connects to the bt device every time! Only thing I'd can think of that it needs is an update to full screen for iOS 6. Do that, and this app, combined with the bluetooth adapter are close to perfect!