Cleaner - Merge Contacts is a full version iPhone app developed by Shanghai Jia Feng Software Co. Ltd. that falls under the Business & Productivity category. The app provides a comprehensive solution to manage your contacts effectively. It offers a range of features, including backup and restore, multi-delete, import and export, and finding contacts with missing information such as name, phone, email, or address.

Cleaner - Merge Contacts also allows you to find common fields such as company, email domain, job title, and phone numbers. The app's Contact Tools Function allows you to find and merge contacts that share the same name but contain different information. The In-App Purchase feature is useful for those who need to manage a large number of contacts.

Overall, Cleaner - Merge Contacts is an efficient and user-friendly app that provides a comprehensive solution to manage your contacts. It is easy to use, and its features are relevant and accurate. The app is regularly updated and supported by the developer, making it a reliable choice for contact management on your iPhone.