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Developer's Description

Disclaimer: Since Keep Alert only monitors features on a user's face, it may not always be indicative of a user's alertness. In order to ensure personal safety and the safety of others, users must only use this app in safe conditions free of potential harm.

Acceptable Use Examples

-In a classroom or lecturesetting

-While studying or reading

-While completing stationary leisure tasks


-While operating a motor vehicle

-While operating machinery

Note that due to the requirement of the TrueDepth Camera (Face ID Sensor), Keep Alert's full functionality is only available on an iPhone X or newer (iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max).

Keep Alert utilizes artificial intelligence in combination with the iPhone X/11 TrueDepth Camera to monitor your face and alert you when your alertness has been disrupted (such as when a user closes their eyes). It also monitors several other factors such as blinking speed, head position, and eye gaze to predict when a user may have decreased alertness.

How it works:

-Place phone in a secure location pointing towards your face and click "Begin Session". The indicator in the upper right hand corner will let you know if Keep Alert detects your face.

-Keep Alert uses a combination of the TrueDepth Camera and Front Facing Camera to monitor values relating to the position of different points on your face.

-During the first few minutes of a session, Keep Alert establishes baseline thresholds for several factors such as head position, blink frequency, and blink speed.

-If Keep Alert detects that a user may have decreased alertness, it will audibly warn the user. This is due to a combination of several factors such as a slower blink speed, stationary eye and head position, and increased blink frequency.

-If at any point does a user close their eyes or nod their head forward, Keep Alert will audibly alert the user that their alertness has been disrupted.

-To end the session, click "End Session". Note that at the end of a session, all data is deleted and at no point does personal data leave the device. See privacy policy for more details.

Keep Alert also has a feature called Illuminate Mode in which the phone screen illuminates a users face and thus allows Keep Alert to function in low light conditions.

Full Specifications

What's new in version 1.2


Release February 9, 2020
Date Added February 9, 2020
Version 1.2

Operating Systems

Operating Systems iOS
Additional Requirements Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


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