StudyHub

# 📚 StudyHub ### A Peer-to-Peer Study Material Sharing Platform *Students helping students learn — one upload at a time.*
[](https://github.com/A11490M/A11490M.github.io/releases) [](https://expo.dev) [](https://firebase.google.com) [](https://cloudinary.com) [](LICENSE) [](https://github.com/A11490M/A11490M.github.io/releases/tag/v1.0.0)
[🌐 Visit Website](https://A11490M.github.io)  ·  [📥 Download APK](https://github.com/A11490M/A11490M.github.io/releases/latest)  ·  [🐛 Report Bug](https://github.com/A11490M/A11490M.github.io/issues)  ·  [💡 Request Feature](https://github.com/A11490M/A11490M.github.io/issues)

---

🌟 About StudyHub

StudyHub was born from a simple frustration — students spend enormous time hunting for good study material scattered across WhatsApp groups, Telegram channels, and broken Google Drive links.

The solution? A community-driven knowledge hub where students help students. Upload your notes, download what others share, join real-time study groups, and earn coins for contributing.

"Not just an app — proof that with the right tools and determination, a student can build production-quality software."

---

✨ Features

Feature	Description
📚 Study Library	Real-time feed of Notes, Books & Research Papers with search & filters
💬 Student Corner	Real-time study group chats powered by Firestore
⬆️ Upload & Earn	Upload documents and earn coins automatically
⭐ Star Ratings	Per-user honest rating system (1–5 stars)
🔒 Password Protection	Lock files & groups with SHA-256 hashed passwords
🪙 Coin Economy	Earn coins by contributing, spend to download
🔔 Notifications	In-app notification center with unread badge count
👤 Profile	Edit name, bio, photo — stats refresh on focus

---

🪙 Coin System

Earn coins by: | Action | Coins | |--------|-------| | 🎉 Welcome bonus | +10 | | ⬆️ Upload a document | +3 | | 📅 Daily login | +1 | | 📺 Watch rewarded ad | +1 to 5 | | ⭐ Receive 5-star rating | +2 | | 👥 Create a study group | +2 |

Spend coins to download: | File Type | Cost | |-----------|------| | 📝 Notes | 6 coins | | 🔬 Research Papers | 8 coins | | 📗 Books | 10 coins |

---

🛠️ Tech Stack

├── UI Framework     →  React Native + Expo SDK 54
├── Navigation       →  Expo Router v6 (file-based)
├── Language         →  TypeScript
├── Styling          →  NativeWind + Tailwind CSS
├── Database         →  Firebase Firestore (real-time)
├── Auth             →  Firebase Authentication (Google + Guest)
├── File Storage     →  Cloudinary (25GB free CDN)
├── Ads              →  Google AdMob (Banner, Interstitial, Rewarded)
├── Build            →  EAS Build (Expo)
└── Security         →  SHA-256 Hashing (Web Crypto API)

---

🔐 Security

• ✅ SHA-256 password hashing — passwords never stored plain
• ✅ Firestore security rules — authenticated access only
• ✅ Guest restrictions — anonymous users can browse but not create
• ✅ Atomic transactions — coin balances can never go negative
• ✅ Full audit trail — every coin transaction logged with timestamp

---

📥 Installation

Option 1 — Google Play (coming soon)

Option 2 — Direct APK Download

1. Go to Releases
2. Download StudyHub.apk
3. Open the APK on your Android device
4. Allow "Install from unknown sources" if prompted
5. Install and enjoy! 🎉

Requirements: Android 8.0 (API 26) and above

---

🚀 Development Journey

Version	Highlights
v1–v2	Firebase Auth, anonymous login, Firestore structure
v3	Study library with real-time listeners, Cloudinary upload
v4	Study groups, real-time group chat
v5	Star ratings, password-protected files & groups
v6	Profile screen, stats display
v7	Google OAuth attempt — rolled back due to crashes
v8	Full codebase audit, removed all legacy dependencies
v9	SHA-256 hashing, security rules, bookmarks, notifications
v10	AdMob integration, coin economy, coin store
v11	App Open Ad, Rewarded Video, category-based download costs
Build	7 EAS attempts → Final APK built successfully ✅

---

📊 By the Numbers

11   Major versions built
 7   EAS build attempts before success
23   Legacy packages removed from bundle
 8   Critical bugs fixed in one audit session
 6   Firebase services integrated
 4   AdMob ad unit types
~3000 Lines of TypeScript written

---

👨‍💻 Developer

**Aniket Maruti Wadhawe** [](https://github.com/A11490M) *Made with ❤️ — March 2026*

---

_{StudyHub v1.0.0 · Built with React Native + Firebase · © 2026 Aniket Wadhawe}

Built With

• html
• typescript