Pratik Hub is actively being developed. The current UI language is Turkish only. English support is coming soon.
Open Source — Windows Desktop App — Free Tier Available
Pratik Hub combines a PDF reader with built-in highlights, a personal dictionary with spaced-repetition practice, shadowing tools, organized study notes, and a gamified reward system — all running locally on your machine with zero cloud dependency.
Features
Every module in Pratik Hub is designed to work together. Highlight a word in the Reader, save it to your Dictionary, practice it later, and earn rewards in the Jungle — all without leaving the app.
Import PDFs or paste raw text. The reader extracts content and presents it in a clean, distraction-free interface with character-level progress tracking.
Build a searchable, alphabetically-grouped personal dictionary. Every word you save includes definitions, multiple example sentences, and custom notes — linked to the book you found it in.
Test your vocabulary with four distinct practice modes. The system uses a spaced-repetition-inspired algorithm that prioritizes new and difficult words, tracks your difficulty score per word, and adjusts sessions dynamically.
Save YouTube video links alongside their transcripts. When you want to watch, the video opens in your browser. When you want to practice, the transcript loads in the Reader so you can type along character by character — combining listening and active recall.
Create named study groups linked to specific books. Select text in the Reader and send it directly to a study group. Reorder entries with drag-and-drop, and review them with a built-in paginated practice view.
Stay motivated with the Jungle — an isometric virtual garden you grow by studying. Earn "drops" (energy) by reading and practicing, then spend them on trees, ponds, and paths to build your personal island.
How It Works
Drag a PDF or paste text directly. Pratik Hub extracts content, generates cover thumbnails, and organizes everything in your personal library.
Read through your material. Highlight passages in three colors, look up unknown words, and save them to your dictionary with definitions and examples.
Switch to Practice Mode. The algorithm picks 20 words per session — prioritizing new and difficult ones — across four different exercise types.
Every character you read earns you drops. Spend them in the Jungle to plant trees and build your island — a tangible reward for consistent study.
Built With
Pratik Hub runs entirely on your machine. Your data never leaves your computer — no accounts, no cloud sync, no telemetry.
Mission & Vision
Language learning software is either too expensive, too bloated, or too dependent on cloud services. Pratik Hub is our answer: a focused, offline-first desktop tool that respects your privacy and gets out of your way so you can focus on what matters — learning.
We believe that the best learning happens when reading, vocabulary building, pronunciation practice, and review are tightly integrated into a single workflow — not scattered across five different apps and browser tabs. The core features are available for free, with premium plans coming soon for power users who want more.
We aim to become the go-to open-source desktop workstation for independent language learners worldwide. Not a replacement for classroom instruction, but the perfect companion for self-study — where every feature earns its place by making your study sessions more efficient.
In the long term, we envision Pratik Hub as a platform that adapts to each learner's pace, supports dozens of language pairs, and proves that world-class educational software doesn't need to cost a monthly subscription.
Roadmap
Pratik Hub is under active development. Here's what we're working on and what's planned for upcoming releases.
PDF/text reader with character-level typing, personal dictionary with TTS, 4 practice modes with adaptive difficulty, study notes with drag-and-drop, shadowing library, Jungle gamification, dark mode.
In-app audio/video playback for shadowing instead of opening externally. Sync transcript with playback timestamps. Sentence-by-sentence repeat mode with speed control.
English UI translation. Support for additional language pairs beyond English-Turkish: Spanish, German, French, Japanese, Korean, and more. Configurable source/target language per book.
Optional cloud backup and sync for dictionary, progress, and study notes across multiple devices. Your data stays yours — sync is always opt-in and encrypted.
Contextual sentence generation for vocabulary words. Smart difficulty prediction. Auto-generated quiz questions from reading material. AI-assisted translation improvements.
Expand beyond Windows. Native builds for macOS and Linux with platform-specific optimizations and installer packages.
Pratik Hub works completely offline with a generous free tier. Download the Windows installer and start learning in under a minute.
Requires Windows 10 or later. The installer is not code-signed — your browser or Windows Defender may show a warning. This is normal for open-source software.