Sometimes the automatic iCloud sync does not work, and your entries don't appear on your other devices. Unfortunately, we don't have much control over the system, as iCloud is provided and managed by Apple. Nevertheless, there are a couple of things you can try to get it working. Make sure to check this steps on all your devices.
Check the iCloud Sync Page in Stoic app
Open the Your Profile —> Your data → iCloud Sync.
This will open a page with the current syncing status. If you see Syncing or Synced it means that everything is ok. If you see errors try triggering complete re-sync on all of your devices.
Check the internet connection
iCloud requires a working internet connection to work. If the status is displaying No internet connection or some other error, make sure you are connected to the internet. Maybe check if some websites are actually loading.
Check if iCloud is enabled
Check your iCloud settings. Go into the Settings app and make sure your account appears at the very top. Now tap your account and then iCloud. Check that iCloud Drive and Stoic are enabled:
1. Check if iCloud is enabled for stoic.
Check that iCloud Drive and Stoic are enabled.
2. Check if iCloud Drive is enabled
Check if Drive is enabled.
Check if you have enough iCloud storage
If the sync is still not working, make sure you have enough iCloud storage left in your account. If your iCloud is full, try to delete some stuff you no longer need or upgrade your plan.
If it is still not working?
Sometimes the sync is still not working, even after following all these steps. If that is the case, you could try to turn off Stoic in the iCloud settings and then back on or reinstall the app. Keep in mind, that this may delete all your entries. You won't be able to restore them.