According to www.bdafrica.com, 60% of Kenyans (population of 47 million, according to the World Factbook) owned smartphones in 2017. The website added that the average price of a smartphone was $100.
If you're going to spend $100 for a smartphone in Kenya, its screen better last for a while, at least two years. Enter the smartphone screen protector. On one of the leading online retailers in the country, the price of a screen protector starts from a low of $2 to a high of $20. I believe the price should be at least $0.50, thanks to laminated foam.