We address the question: which countries-rich (high-income countries) or poor (middle-income and low-income countries) - tend to gain more from the Information and Communication Technology (ICT) revolution? By employing a panel of 123 countries consisting of 45 high-income countries, 58 middle-income countries, and 20 low-income countries from 2002 to 2017 and by constructing ICT index from mobile, internet, and fixed broadband, we find that in general ICT increases economic growth in both countries, however, poor countries tend to gain more from the ICT revolution. •Examine the impact of ICT on economic growth by comparing rich and poor countries.•Employ a panel of 123 countries for the period 2002–2017.•Construct ICT index from mobile, internet, and fixed broadband use.•ICT increases economic growth in both countries.•Poor countries tend to benefit more than rich countries from the ICT revolution.