First - I really love this product, and I think it was a brilliant idea, well done. I am a recently diagnosed insomniac, and I have to wear earplugs when I sleep. My girlfriend might like his silent un-alarm more than me because she isn't jolted awake by my alarm that has to be cranked up! So, from the both of us, good job.
I do have some complaints however. I understand this is a new product, and perhaps your team has not been developing for iOS very long. Number one, when you enable the alarm, and the screen dims, it is basically unreadable and glows quite bright. I would like to point out an app that I have used previously as an alarm, and the GUI is brilliant. iHome+Sleep – the GUI is beautiful, you can also choose pictures to use as the background, along with a weather display (a nice addition). The most important feature to note is how the display dims when you swipe to tell the App its Bedtime. I think the Lark App could benefit from a few user friendly +cosmetic improvements.
OK, so all that was just about the GUI, which doesn’t have anything to do with functionality, I understand this. So that is what I am going to comment on next. The fact that Lark records sleep data (at least for an insomniac like me), is extremely useful! I think this was a good use for the sensor in the Lark wrist band, a very good use. However, it does not record accurately…or at least report accurately. Let me explain – I have been using the Lark for about a week now, and like I said, our morning are much more peaceful because of it. Because of my insomnia, I very rarely get 8hrs of sleep, and most mornings I feel like I only slept a few hours. One morning in particular, I felt extremely lethargic in the morning, the most tired I have felt in a month! But the Lark did not agree. According to Lark, that was the best night’s sleep to date according to its weeks worth of data. Now, like I said, this information seems very useful, especially to someone who values a good night’s sleep as much as I do. But the information now seems invalid and un-usefull. I feel as if some of my money has gone to waste, and I spent $140 on a wrist band that vibrates to wake me up, and nothing more.