So, your kids have graduated from button clicks and basic logic, and they’re now App Inventor pros-in-the-making? That’s awesome! This is where things get really exciting. We’re talking about complex logic, real-time inputs, databases, multi-screen apps, and even a touch of AI—all packed into 15 hard-level challenges that are 100% unique and not found in any of our easy or medium lists.
Let’s get coding, the hard (and fun) way!
Challenge 1: Multi-Screen Quiz with Score Tracking
What they’ll learn: Screen navigation, Lists, TinyDB
How it works:
Each question appears on a new screen.
Score is tracked and stored using TinyDB.
Final screen shows the result.
🧠 Tests logic flow and screen management!
Challenge 2: Personal Budget Tracker
What they’ll learn: TinyDB, Math logic, Date input
How it works:
Add expenses with categories.
View totals by category.
Store and display weekly/monthly budgets.
💸 Helps kids understand value—both in logic and money!
Challenge 3: Chat-Style Messaging
What they’ll learn: Lists, Dynamic layout, Scrollable UI
How it works:
Create a chat-like interface.
Messages appear on left/right depending on sender.
Option to clear or save chat.
💬 Builds UI/UX logic in a playful way!
Challenge 4: Currency Converter
What they’ll learn: Math, API (mock or real), UI layout
How it works:
Enter an amount and choose currencies.
Convert using pre-set or real API values.
💱 A practical app that uses math in action!
Challenge 5: Alarm App with Snooze Option
What they’ll learn: Clock, Notifications, Sound
How it works:
User sets an alarm time.
App checks time and plays alarm sound.
Snooze button delays the alarm by 5 minutes.
⏰ A great mix of time logic and event handling!
If your kids can complete these hard-level App Inventor challenges, give them a high five—seriously, they’re becoming true app creators! These projects are not just about building apps. They develop problem-solving, creativity, logical thinking, and perseverance.
Let the ideas flow, the code run, and the learning never stop!