Not much depth

The app covers the numbers 1-10 in a basic manner, your child gets to trace the numbers.

Time value: I would say most children will burn through this apps attention value in an hour or two.

Visual: The visuals for the numbers and tracing are fine however I would describe the general interface as slightly cluttered. It has a pay to get rid of the advertising feel to it.

Heavy Chimp about 123 Tracing Numbers: Montessori math game for kids, v2.0.3