Contacts - Multi Clean Backup is a free iPhone app developed by Khac Le Duy Cao. This utility and tools application is designed to help you manage and backup your contacts effectively. With this app, you can easily backup your contacts to a csv (excel) file or vcf(vcard) file, allowing you to save and restore your contacts whenever needed.

One of the standout features of Contacts - Multi Clean Backup is its bulk deletion or multi-delete feature. This feature saves you a significant amount of time by allowing you to quickly remove unnecessary contacts in just a few seconds.

Furthermore, if you have important and private contacts that you want to keep hidden and secure, this app has you covered. Contacts - Multi Clean Backup allows you to set a passcode to encrypt and hide your contacts, ensuring that only you have access to them. This provides an extra layer of protection and peace of mind.

Contacts - Multi Clean Backup offers three different packages for purchase: Weekly, Monthly, and Lifetime. Each package provides unlimited access to all of the app's features. Whether you need temporary access or long-term usage, there is a package that suits your needs.

Please note that for more detailed information regarding privacy and terms, you can refer to the app's Privacy Policy and Terms and Conditions on the developer's website.