Tomoru Hackathon Pitch

🌟 Inspiration

One morning I woke up instantly to an urgent phone call. It wasn’t louder than an alarm clock, but far more effective—because it came from someone I cared about. That feeling of a friend calling you awake inspired this project.

⏰ What it does

• Set alarms with a purpose (wake up, study, exercise, bedtime, etc.)
• A character “calls” you instead of a simple alarm sound
• Complete fun missions (Stroop test, memory, math) to dismiss alarms
• Enjoy the character’s joyful reactions when you succeed

🛠️ How we built it

• Built with Expo (React Native) + native Android modules for alarms
• Used Gemini 2.5 + Stable Diffusion for consistent character art
• Leveraged vibe coding tools to accelerate development
• Monetization: AdMob ads + RevenueCat IAP for ad removal

⚡ Challenges

• Solo development meant limited resources and time
• Preparing art, design, docs, store submission, and payments in one sprint
• Balancing mission difficulty—effective but not frustrating

🏆 Accomplishments

• Proved that with AI tools and libraries like RevenueCat, even a solo dev can ship a polished app fast
• Created a unique character-driven alarm experience in a short timeframe

📚 What we learned

• How to define realistic scope, goals, and timelines
• The power of solo + AI as a sustainable way to build products
• Small design details (dialogue, art, reactions) greatly impact user motivation

🚀 What’s next for Tomoru

• More missions and background variations
• Deeper, personalized character interactions
• Evolving into a true best-friend alarm app that remembers user behavior

Built With

• ai
• android
• expo.io
• react-native
• typescript