Gelato and ice cream are both frozen desserts made from dairy, sugar and air, but gelato uses more milk and less cream, so it has less fat; it's churned more slowly, so it holds less air and is denser; and it's served warmer than ice cream (Healthline puts gelato around 12°F and ice cream around 0°F), so it's softer and silkier on the spoon. In the US, anything sold as ice cream must contain at least 10% milkfat by weight. There's no federal standard for gelato.
At Battr in Cleveland, gelato is $6 for a junior, $8 for a regular (two scoops) and $10 for a large (three scoops), or built into a bubble waffle or crepe cone, at our Tremont and Lakewood shops.