Secure Sharing of Encrypted Flashcard Packs

Easchi is not just a personal lifelong learning tool; it also provides a comprehensive toolkit for teachers, schools, and training institutions. As a teacher or the head of an educational training organization, the carefully developed syllabi, vocabulary lists, and key exam review cards represent the core intellectual assets of your institution.

However, once traditional electronic documents are sent out, they are like kites with broken strings — easily copied, transferred, or even publicly disseminated at will. Through the innovative secure flashcard pack distribution mechanism, students can enjoy an efficient digital flashcard learning experience, while you retain firm control over the distribution of content.

💡 Core Application Scenarios

• Supplementing daily offline teaching: In class groups or parent groups, regularly send out a “flashcard learning pack” that matches the week’s curriculum. After students download and import it into the app, they can start reviewing using scientific memory algorithms.
• Short-term exam cramming and quizzes: Create exclusive “flashcard exam packs” for final exams or certification sprints. Set a specific validity period so that the flashcard pack automatically expires after the exam or course ends, protecting phased teaching materials from long-term unauthorized distribution.

📦 Flashcard Pack Categories

To reduce jargon and improve operational intuitiveness, Easchi uniformly names the exported flashcard collection a Flashcard Pack to strictly differentiate it from personal review decks.

💡 Friendly Reminder The free version supports creating standard flashcard packs containing basic flashcards. To unlock features with richer question types like single-choice, multiple-choice, and multi-cloze, you need to upgrade your plan.

✨ Core Advantages and Access Control

1. Flexible Access Control: Password and Validity Period

When creating a flashcard pack, you can set up dual protection for it:

• Exclusive access password: Only students authorized with your password can unlock and study.
• Time validity range: You can specify that the flashcard pack can no longer be read after a certain date, making it ideal for time-sensitive exam preparation materials.

2. Offline Self-Distribution, No Third-Party Platform Dependency

Online distribution platforms often face intricate regulations and high legal risks. Therefore, Easchi innovatively adopts a pure offline content distribution strategy.

• Once packaged, the flashcard pack is a standalone encrypted file.
• You can freely send it directly to students via social media, email, WeChat groups, or even a USB drive.
• Easchi officially does not act as a content host, does not hold or disseminate any teaching content. Your teaching content does not need to pass through public platform review or hosting; you alone decide who can receive the file.

3. Pure Tool Attribute, Data Security Compliance

We deeply understand the strict data compliance requirements of the education industry. This feature is positioned as a pure “packaging and verification tool”:

• We do not collect, store, or disseminate any of your teaching content.
• All ownership and management rights of the content belong entirely to you.
• When generating a flashcard pack, the system performs basic compliance screening through local automation technology to ensure the health and security of the distribution channel.

🛠️ Offline Distribution and Usage

Teacher Side: Flashcard Pack Distribution Steps

1. Create cards: Convert daily teaching notes or error collections into standard flashcards.
2. Categorize cards: Set decks, tags, etc.
3. Select cards: Filter the content to be distributed based on decks or tags.
4. Set validity period and password: Set an expiration date (can be indefinite) and an exclusive access password.
5. Local packaging: After confirmation, the system will process and encrypt the data locally on your device, exporting a flashcard pack file solely for your own distribution.

Freely distribute: Teachers can send the packaged flashcard pack file to their own social media, groups, or mailing lists. Easchi officially does not act as a content host, does not hold or disseminate any teaching content.

Student Side: Using a Flashcard Pack Distributed by Others

1. Download the flashcard pack file: Download the exclusive encrypted flashcard pack sent by the teacher.
2. Import and enter password: Import the file into the Easchi App; the system will prompt you to enter a password.
3. Time and password verification: The client verifies the validity period and current time, then performs local decryption using the password.
4. Successful decryption and import: After successful decryption, the flashcard pack content is smoothly imported, and students can begin efficient learning.