Helium looks good but only backs up to the phone and not to SD card or PC (?!?)
It should back up and restore to either your SD or to your PC if you wanted to do that.
From the Play Store listing:
https://play.google.com/store/apps/details?id=com.koushikdutta.backup
Helium Setup
1. Install Helium on Android
a) Root user? You're done!
2. Install and run Helium Desktop (link below)
3. Connect Android to computer.
a) You may need to set your USB Connection Mode to "PTP". (Nexus 7, Nexus 10, etc)
4. Helium on Android should now be enabled.
Helium (Free) features:
Backup and restore to SD card
Backup and restore from PC
Helium (Premium) features:
No ads
Automatic Backup schedules
Android to Android sync
Cloud backup and restore
* Dropbox
* Box
* Google Drive