Connect a device running on iOS 9 and above to your Mac to view phone numbers. Extract or copy individual data items, check the related content such as call logs and messages. Work with the information remotely without affecting the SIM card configuration.
T-Mobile DIGITS 1.6.2 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software relates to Communication Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The actual developer of this free software for Mac is T-Mobile US.
From the developer:
T-Mobile DIGITS lets you access your phone number and related information (call logs and messages) on virtually any iOS (9.0 and above) device without needing a SIM card associated with the number. You can use this application to place voice calls and send and receive instant messages using single and multiple lines.
You may want to check out more software for Mac, such as DMD's Digital Performer 7 - Know It All!, Digital Media Doctor or Digital Clock +, which might be similar to T-Mobile DIGITS.
Instant messaging
Device Assistants