Gravitoa
A personal growth and mentorship app for Android and iOS, built with GPT-powered guidance and ad-based monetization.
Personal growth apps are common. Mentor-style guidance isn't.
Most personal growth apps are static content — articles, checklists, timers. We wanted to build something that felt more like having an actual mentor: a guided, conversational experience that responded to what someone was actually working through, not a generic content feed.
From mobile app to AI integration
We built Gravitoa end to end as an independent project: a cross-platform Flutter app for Android and iOS, with GPT-based AI integrated directly into the mentorship experience to give users responsive, personalized guidance rather than static content. Firebase Authentication handles user accounts, and Google Cloud Functions sit between the app and the GPT API — keeping the API key server-side, handling push notifications, and trimming prompt context to keep token usage down. We also handled monetization, integrating Google Ads to support the app without a subscription paywall.
- Cross-platform Flutter app shipped to both Android and iOS
- GPT-based AI integration powering the app's mentor-style conversations
- Firebase Authentication for user accounts
- Google Cloud Functions proxying GPT API calls and handling push notifications
- Prompt and context trimming to reduce GPT token usage and cost
- Google Ads integration for monetization
- Designed, built, and shipped end to end
What we used
Flutter for a single codebase across both platforms, GPT-based AI for the mentorship and guidance features, Firebase for authentication, Google Cloud Functions to proxy GPT calls and trim token usage, and Google Ads for monetization.
A shipped AI mobile app
Gravitoa is live on both Android and iOS, spanning mobile development, AI integration, and monetization — the same range of skills we now apply to client projects.
- Shipped to both major app stores
- AI-guided mentorship experience, not a static content app
- End-to-end ownership: mobile app, AI integration, and monetization
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