The Helium App Sync and Backup License key only applies to the paid version; you must also download the free version.
Make Sure You Have The Latest Version Of Free And The Latest License Installed If You Have Any License Issues.
Features of Helium Premium APK:
- No commercials
- Syncing with Android apps
- Schedule automatic backups (coming soon)
- Backup and restore to the cloud
- Dropbox Box
- Google Drive