Global Sona is an English version of the Sona app (Korean version) that measures the height of children in a convenient way. This app is used together with a hardware device called SONA developed by Qoolsystem Inc..
By July 2024 over 40000 parents are enjoying the functionalities such as comparing their own children’s height with other children of the same age.

Key features of Global Sona :
* Measure the height of a child with a ultrasonic sensor of the Sona device.
* Record the measured data with the date shows the growth history in a graph.
* Create as many profiles of children so that the kindergarten teachers for example can manage more children than normal parents.
* Compare my child’s height with those of children of the same age. It is based on the statistics of children’s growth curve provided by authorities periodically. Global Sona adopts the data by WHO (World Health Organization of UN) while SONA (Korean version) adopts the data by the Korean government.
* Estimate my child’s height when he or she becomes 18 years old.
* Set the sleeping lamp time from 0 min. to 60 min..
* Set the length unit either meter/centimeter or feet/inch.

We hope you can follow up your children’s growth history in a convenient way with Global Sona" application.