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About this app

BIDAP is a learning tool that allows you to easily and quickly manage question papers and answers.

When you take a photo of a question paper or answer key, AI extracts the correct answer information and organizes it into a digital answer key. It is also possible to create answer keys in your desired format by manually entering your answers.

You can solve problems using the generated answer keys and grade them immediately, and view correct and incorrect answers, scores, and solution progress for each question at a glance.

Key Features
**AI Answer Extraction Using Photos of Question Papers and Answer Keys**
**Generation of Answer Keys and OMR Sheets via Manual Input**
**Question-Specific Answer Input and Automatic Grading**
**Management of Learning Progress by Subject and Answer Key**
**Checking Incorrect Answers and Solution Records**
**Sharing Answer Keys and Answer Key Groups**
**Convenient Sharing Using QR Codes and Links**
**Creating and Inviting to Study Rooms**
**Real-time Tests with Friends**
**Support for Anonymous or Google Account Login**
**Support for Mobile Screens and PWA Installation**

BIDAP reduces the repetitive process of checking answers and grading, helping learners focus more on problem-solving and managing incorrect answers. It can be used for individual study, study groups with friends, and simple tests and assignments involving teachers and students.

Record, solve, grade, and share.

You can manage the entire problem-solving process with a single answer key.
Create answer keys by photographing the test papers, and conveniently use OMR scoring and study management.
Updated on
Aug 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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