3D Toddler ABC Tracing Game

I would like to commission a colourful 3D mobile game that helps children aged 2-4 learn their letters and numbers. The closest reference to what I have in mind is “ABC Kids – Tracing & Phonics” (https://play.google.com/store/apps/details?id=com.rvappstudios.abc_kids_toddler_tracing_phonics), but I want the visuals fully rendered in simple, friendly 3D rather than 2D flat art.

Key objectives
• Smooth, touch-friendly tracing of uppercase/lowercase letters and 0-9, with cheerful voice-overs and positive feedback.
• Mini-activities that reinforce recognition (e.g., matching a 3D letter to a floating balloon with the same letter).
• Intuitive menus so pre-readers can play without help.
• Bright, low-poly art style that performs well on both Android and iOS devices.

Core deliverables
1. Full Unity or Unreal project (source code + assets) ready for build to Google Play and the App Store.
2. Two worlds or “lesson packs” (letters A-Z and numbers 0-9) featuring simple rewards such as stickers or stars.
3. Basic parental dashboard: sound toggle, progress reset, privacy notice link.
4. APK and IPA test builds plus instructions for store submission.

Acceptance criteria
• Letter/number tracing detects 90 % accuracy or higher on typical toddler scribbles.
• Average frame-rate 30 fps on recent entry-level Android phones and iPad 9th gen.
• No third-party ads, in-app purchases disabled. All content unlocked from the start.

I can provide sample voice recordings and storyboard sketches once development begins. Please outline your proposed engine, estimated timeline, and any similar work you have shipped for preschool audiences.