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This article discusses software internally used by Apple.

Acquiring a copy without Apple's consent is illegal and may result in being scammed.
Engaging in illegal activity is not condoned. This information is provided for educational purposes only.

E911Tester Icon.png
Original author(s) Apple Inc.
Developer(s) Apple Inc.
Stable release 17
(latest known version)
Operating system iOS
Available in English
License Closed source

E911Tester is an app installed on all InternalUI builds which is used to test the implementation and functionality of the Enhanced 911 (also called E-911 or E911) system in North America. The E911 system automatically provides the caller's location to emergency dispatchers.


See Also