I've recently upgraded from an iPhone 4 running iOS 6 to an iPhone 5 (that's a 5, not a 5c or 5s) running iOS 7. I'm getting horrible battery life when reading iBooks. On my 3.5 year old iPhone I got about 9 hours of reading time and over 10 hours when it was new whereas on my new iPhone 5 I struggle to get to 4 hours.
I've been running a standby test on my iPhone 5 by having it sit on my desk connected to the network with everything set up as I usually have it (manual fetch only, WiFi and Bluetooth off, no system services and only a few apps allowed to use location services). There doesn't seem to be anything catastrophically wrong with the battery or basic iOS 7 installation because at exactly 1 day and 23 hours of standby my battery is still at 84% which if anything is better standby time than I had with my iPhone 4 but I'm still left with the appalling usage time when I actually use it.
I had a look at the settings app to see how much mobile data each app uses and iBooks is, apart from the system services, the biggest user of mobile data on my phone. iBooks has used 2.1 MB of mobile data and all I have it set to do is synchronise bookmarks. I haven't downloaded any books via the mobile connection (they all got loaded from my local NAS using WiFi) and I've never visited the Apple bookstore from my new phone. I've only ever opened 2 books on this device so I'd have expected more like 2.1 KB of mobile data use to synchronise 2 bookmarks. I'm struggling to see how it used 2.1MB.
Is anyone else seeing similar iBooks problems on iOS 7? iBooks still has some very skeuomorphic design elements in it so I'm wondering whether it hasn't had much attention from Apple yet and that there might be some iOS 7 incompatibilities left to resolve.
I've been running a standby test on my iPhone 5 by having it sit on my desk connected to the network with everything set up as I usually have it (manual fetch only, WiFi and Bluetooth off, no system services and only a few apps allowed to use location services). There doesn't seem to be anything catastrophically wrong with the battery or basic iOS 7 installation because at exactly 1 day and 23 hours of standby my battery is still at 84% which if anything is better standby time than I had with my iPhone 4 but I'm still left with the appalling usage time when I actually use it.
I had a look at the settings app to see how much mobile data each app uses and iBooks is, apart from the system services, the biggest user of mobile data on my phone. iBooks has used 2.1 MB of mobile data and all I have it set to do is synchronise bookmarks. I haven't downloaded any books via the mobile connection (they all got loaded from my local NAS using WiFi) and I've never visited the Apple bookstore from my new phone. I've only ever opened 2 books on this device so I'd have expected more like 2.1 KB of mobile data use to synchronise 2 bookmarks. I'm struggling to see how it used 2.1MB.
Is anyone else seeing similar iBooks problems on iOS 7? iBooks still has some very skeuomorphic design elements in it so I'm wondering whether it hasn't had much attention from Apple yet and that there might be some iOS 7 incompatibilities left to resolve.