
Video Defterim
A study productivity app that lets students add timestamped notes to YouTube lecture videos and instantly revisit key moments.
Video Defterim is designed to enhance the efficiency of students who study through YouTube, particularly those preparing for TYT and AYT exams. The app allows users to attach notes to specific timestamps within lecture videos, eliminating the need to repeatedly search through long content.
Students can mark important explanations, organize their notes by subject, and return to the exact second of the video with a single tap. This creates a structured and time-efficient learning experience, especially for dense and lengthy lessons.
The application supports a dual-structure system for TYT and AYT, helping users maintain a well-organized study environment. Its minimal and fast interface ensures that note-taking does not interrupt the learning flow, but rather enhances it.
How It Works
- Watch a YouTube lecture video
- Add notes to specific timestamps
- Organize notes by subject/topic
- Instantly revisit important sections
Key Features
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Timestamped Note System
Attach notes to exact moments in videos.
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One-Tap Navigation
Jump directly to the relevant second.
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Topic-Based Organization
Structure notes by lessons and subjects.
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TYT / AYT Support
Separate categorization systems for exam preparation.
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Fast & Minimal Experience
Optimized for quick note-taking during video playback.
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Editable Notes
Update or delete notes anytime.
Technical Details
- Platform: iOS / iPadOS (scalable to other platforms)
- Language: Swift
- IDE: Xcode
- UI Framework: SwiftUI
- Video Integration: YouTube iFrame API (via WebView)
- Data Persistence: CoreData / Firebase
- Architecture: MVVM
- Core Logic: Timestamp-based navigation and note mapping
- State Management: Reactive UI with SwiftUI bindings