BlinkLab App:
Getting Started
Follow these simple steps to successfully complete the BlinkLab study. Everything you need to know is right here — let’s walk through it together. It’s essential to follow all the instructions carefully!
Before you begin:
What will you need for this session?
Use an iPhone with iOS 15.0 or higher
Use one of the following devices: an iPhone X or newer, or an iPad (9th generation or later).
Headphones & Cable
Please use the headphones and cable provided for the study.
Internet Connection
Please make sure the internet connection is stable at all times.
Session Timing & Health Note
Please keep in mind that all sessions need to be completed by 6 PM with your child under normal health conditions (e.g., no fever).
Download Our Application
Visit this link to download the BlinkLab app.
How to set up your
environment?
Make sure to set up your environment according to our steps!

Choose a well-lit and quiet room
- The lighting should be soft and bright enough to read a book.
- Avoid having a bright light or window behind your child — this can make their face appear too dark on the screen.
- Ensure your child’s face is well lit and clearly visible during the session.
- If your child wears glasses, make sure there is no glare or reflection on the lenses.

Place your iPhone in landscape orientation on the provided phone stand
For the best result, please have your child sit at a table with the phone on the phone stand so that the phone camera is roughly level with your child’s eyes. Make sure your child’s face is centered in the camera frame before the start of the video.

Disable “Reduce Loud Audio” on your iPhone if it’s on
In order to do this, go to settings -> Sound & Haptics -> Headphone Safety -> Reduce Loud Audio (ensure the toggle is grey, not green).

Make sure all other apps are closed

Please turn on “Do Not Disturb” mode on your phone
To turn it on, swipe down from the top-right corner of your screen to open the Control Center, then tap the moon icon. Please note that the “Do Not Disturb” page in the app does not automatically enable your phone’s Do Not Disturb mode.
During the video
Please sit quietly next to your child throughout the session to ensure that all of the instructions below are followed properly from start to finish.
Face visible
Ensure your child’s face remains within the camera’s view at all times. An error message will pop up if their face is not visible.
Child only
Only your child’s face should be visible in the front camera view. No other people or objects with a face, such as dolls or pictures of faces, should appear in the frame.
Clear camera
Make sure nothing is blocking the front camera (e.g. finger, webcam cover).
No eating/drinking
Please note that no eating and drinking is allowed during the session as this will interfere with the recording.

Cable connected
Ensure the headphone cable is correctly inserted into the phone.
Don’t press the cable button
Do not press the button on the cable of the headphones.
Stay on the app
Do not close the app until you see the “Test Completed” and the “Improve the experiment” page.
Proper fit
Your child should wear the headphones properly (i.e. both ears fully covered with the headphones).