Contact person: Business Client

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Location: Austin, United States

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Job Title: Flutter Developer for Card Game Mastery App (Mastermind Poker & Blackjack)
Budget: $1,500 – $2,000
Project Type: MVP (Minimum Viable Product)
Platforms: iOS & Android (Cross-platform)
Overview:
I am seeking a developer to build "Mastermind Poker & Blackjack," an educational trainer app. The app helps users master game theory and mathematical strategy through interactive "tests" and real-time AI feedback.
This is NOT a gambling app. No real money is used. It is a logic-based training tool.
Key Deliverables:
1. Blackjack Training Module: - A gameplay simulator where the app compares user decisions (Hit, Stand, Double, Split) against a provided Basic Strategy JSON matrix.
• Immediate visual feedback (e.g., a "Red Flash" or "Leak Warning") when the user deviates from the math.
2. Poker Pre-Flop Trainer: - A drill-based interface showing 2-card hands and table positions.
• Users must decide to "Raise" or "Fold" based on GTO (Game Theory Optimal) charts.
3. Mastery Testing System: - Logic to track "Streaks" (e.g., "Pass 25 hands perfectly to unlock the next level").
4. Subscription Implementation (Crucial):
• Integration with RevenueCat to manage three tiers:
• Weekly: $4.99 (Must include 7-Day Free Trial)
• Monthly: $12.00
• Yearly: $135.00
• Must include a "Cancel Anytime" button in the user profile that links to App Store/Google Play settings.
Technical Stack Requirements:
• Frontend: Flutter (preferred) or FlutterFlow.
• Backend: Firebase (for user progress, streaks, and ranks).
• Payment API: RevenueCat for robust subscription management.
• UI Style: Dark mode, high-tech, professional "Mastermind" aesthetic.
Application Requirements:
• Please provide examples of apps you have built with recurring subscriptions.
• Explain how you will handle the "7-day free trial" logic on a weekly subscription.
• Confirm you can work within the $1,500 - $2,000 budget for this MVP." (client-provided description)