There are times wherein when you do not have a backup, losing contacts on your phone can be an annoying experience. However, you can easily restore all of your manually deleted contacts with the help of this app. 

The Restore Contacts app lets you retrieve phone numbers one at a time or all at once. Additionally, it has a search function that makes it easy to find your deleted contacts. Just tap on the contact you want to retrieve, then you can now see the numbers being displayed! Big thanks to this app, you would not ever worry about losing your contacts again.