What prerequisites are necessary for synchronization?
For synchronization to work reliably, certain requirements must be met. These vary depending on the synchronization type:
iCloud / CloudKit Synchronization
To synchronize your data via iCloud, you need:
- Internet connection: Your device must be connected to the internet.
- iCloud server availability: Apple servers must be accessible (you can check for occasional outages on the Apple System Status page).
- Apple ID login: You must be signed in to iCloud with your Apple ID.
- Sufficient iCloud storage space: Make sure your iCloud storage still has space for the synchronization data.
Folder Sync
If you use syncing via a folder (e.g., on a NAS or a network drive), please note:
- Access to the folder: The folder must be accessible and mounted (e.g., connected to a network share).
- Read and write permissions: You need both read and write permissions for the folder and all files it contains.
- Stable connection: Network folders require a stable network connection (LAN or Wi-Fi).
Important: Do not delete, move, or recreate the sync folder when SimpleumSafe reports that it is unavailable. First, inspect the existing folder in Finder without changing it. Then follow “Sync folder not accessible: restore access safely”.
Device-to-device sync
For direct syncing between two devices (e.g., iPhone ↔ Mac or iPhone ↔ iPad), the following conditions must be met:
- Wi-Fi enabled: Both devices must have Wi-Fi enabled and be on the same Wi-Fi network.
- Access to the local network allowed:
- On iOS/iPadOS: Check in the System Preferences whether the app has access to the local network (see screenshot below).
- On macOS: Check the local network permissions in the System Preferences
- Privacy & Security > Local Network > Enable SimpleumSafe
- Bluetooth enabled and allowed: Bluetooth must be enabled on both devices, and the app requires the appropriate permission.
- On iOS/iPadOS: Check in the System Preferences whether Bluetooth permissions are enabled (see screenshot below).
- On macOS: Check in the System Preferences whether Bluetooth permissions are enabled
- Privacy & Security > Bluetooth > Enable SimpleumSafe
- Both devices unlocked: To enable the devices to find each other, they should be enabled and unlocked.
Note: In some Wi-Fi networks (e.g., corporate or guest Wi-Fi networks), connections between devices are blocked. In this case, synchronization may not work.
This is what the app settings should look like on iOS
