And because no one except Apple have access to the private iOS APIs required to run background processes forever, you would have to remember to keep the app in

And because no one except Apple have access to the private iOS APIs required to run background processes forever, you would have to remember to keep the app in the foreground while it completes syncing on a regular basis. Also, you can restore an iPhone from what SyncThing can back up. Only an iTunes or equivalent iCloud device backup can. They also can’t back up things like MFA keys / seeds / IVs. I’m glad ST exists and it’s useful for syncing photos for home use, but it is not a viable iCloud alternative, nor could one be made due to the private iOS API issue.