One of the questions that many users tend to have is how to retrieve notes on iPhone when they suddenly disappear; they are either removed accidentally or because of a problem with syncing or software malfunctions. The first step in the recovery process is to check the Recently Deleted folder in the Notes app. In case the notes are not there, the lost notes can be recovered with the aid of an earlier iCloud or computer backup. In the absence of backups, there is sophisticated data recovery software in the iPhone that can scan the phone and make an effort to recover the notes that are still in the internal storage.