I use the iBGStar now quite some time (almost two years) and the initial euphoria gave way now of increased frustration. First it should be mentioned that Sanofi Aventis yet still the meantime offers the iBGStar with the already almost forgotten DockConnector pre-penultimate-generation iPhone. That makes it for most of the users duty to turn an adapter between the meter and iPhone. Since all other adapters do not work, you have to use the original Apple adapter for this purpose. This is mainly extremely ugly, as it prolongs the construct significantly and the attractive design of the individual devices abruptly interrupts alone by the white color of the adapter. In addition, or rather especially the device but extremely unreliable. My has since been replaced twice, because it is simply no longer communicates with the iPhone. You put the meter on and it happens either nothing (20% of cases), the iPhone says that this accessory is not intended for use with the iPhone (40% of cases) or the measured value is actually transferred (40%) , This is especially terribly annoying when you just want a short transfer times a value to but up to 10 times the power on and again unplug or app needs to close. Even the iPhone I have already exchanged leave (AppleCare) to exclude an error on Lightning connector. Even after it was no better. Meanwhile I use the device still because it is simply nice and small. The transmission of values is carried out at me but manually. I type the value from the display of iBGStar so the on-screen keyboard in the iBGStar App. The app is in contrast namely really succeeded.