I would have given this 5 stars if it synced via iCloud and/or dropbox. I have updated my review to drop it down to 2 stars. The product is a good app. However, it still requires you to pay them $6 to get a sync module that only allows you to sync over wifi or Bluetooth. $6 for a sync method that is outdated by years. I would pay for a modern sync method that keeps all devices up to date seemlessly, like iCloud and/or Dropbox but not for antique technology.