Normally 5 stars, but

the privacy information is a mess! It is nowhere to find what kind of my health information is given to Jaiyo and what it is used for.
So, in my opinion this app is there for syncing between Apples Health and the jawbone up app. So why does any health information has to go to Jaiyo????
Update 24.07.2015:
On July 7th I wrote to Jaiyo because of the data protection thing but until today I didnt get an answer.
Also the automatic syncing a few times a day does not really work. Most of the time I have to sync it manually.

Update 04.08.2015
Until today no answer from Jaiyo!
And it would be great if for example the weight (it comes from my withings scale to Apple Health) would be synced to my Jawbone up, too. Not only data from Jawbone to health. Because so I always have to type it into my Jawbone app manually.
I downgraded to one star cause there is no way to contact their customer service. That is really not ok, especially if it is about an app that collects very sensitive data.

NY-HH about Health Sync for Jawbone UP, v3.9