Dyrii automatically takes care of syncing your changes without any manual action needed. If you notice missing posts, then try following options:
1. Enable Dyrii Premium (Note: Sync is a Premium feature).
2. Check your iCloud settings. Dyrii does not require any login or registration to sync your posts, but you have to make sure all your devices share the same iCloud account. So, make sure your iCloud settings are turned on.
3. Check your available space on iCloud. Sometimes sync won't work if your have low disk space on iCloud.
Other limitations:
- The attachments have to be less to 250MB to be synced between devices.
- Posts larger than 500,000 characters will not be entirely synced.