If you have ever handed your phone to a three-year-old only to get it back with three new subscriptions and a maxed-out credit card, you will appreciate what RV AppStudios did here. They built a suite of apps that skip the 'lite' versions and data-harvesting that plague the rest of the store.
The tracing mechanics are the star. It uses a guided-arrow system that is forgiving enough for a toddler’s shaky fine motor skills but strict enough to teach the actual shape of the letter. The phonics component is baked into the tracing, so they hear the 'B' sound while they are drawing it. This helps bridge the gap between seeing a symbol and knowing what it says, which is exactly how early reading works.
One of the smartest features is the 'Teacher Mode.' Tucked away behind a parental gate, it lets you look at report cards to see where your kid is hitting a wall. If they are nailing their uppercase letters but keep getting stuck on lowercase 'g,' you can toggle the settings to focus specifically on those trouble spots. It turns the iPad from a passive distraction into a targeted learning tool.
Pair this with some physical 'salt tray' tracing or actual paper and crayons. Tracing on glass is low-friction, which is great for building confidence, but kids eventually need the tactile resistance of a pencil on paper to develop real grip strength. Use the app to build the memory of the shape, then move to paper to build the muscle.