迷惑電話ブロック (Miwakudenwaburokku) is a free utility and tools app developed by SoftBank Corp. for iPhone users. This app aims to detect and alert users about dangerous phone calls in advance, providing a warning screen during incoming and outgoing calls. Additionally, it automatically detects and categorizes spam messages into a separate folder in the Messages app.

The key features of 迷惑電話ブロック include:

1. Warning Display for Suspicious Calls: This app proactively identifies dangerous calls, such as scam or malicious solicitation, and displays a warning screen on the device during incoming calls. It also checks the entered phone number for potential risks and displays a warning if necessary. Furthermore, the warning display is available in the call history, preventing users from making return calls to risky contacts.

2. Automatic Display of Caller's Name: Even if the caller's number is not saved in the address book, 迷惑電話ブロック automatically displays the name of shops or public institutions, providing users with peace of mind when answering calls.

3. Automatic Categorization of Spam Messages: This app detects spam messages that arrive in the Messages app and automatically sorts them into a designated spam folder.

Please note that the 迷惑電話ブロック app is available for iOS 11 and later.

Please refer to the official website for the complete terms of use.