What's New in 3.1.0 - New stage mode: The card matching game now has 100 stages that get harder as you go, from 2×2 to 4×4 to 6×6 boards. - Trivia in every stage: Each stage has a general knowledge quiz. Match card pairs to unlock answer choices, then pick the right answer to clear the stage. - Quizzes in 5 languages: Questions are written for each language (English, Korean, Spanish, Chinese, Japanese) and fact-checked. - Hints: You get 5 free hints every day. Use one to peek at a card or to see a clue for the quiz. Need more? Watch a short ad for an extra hint. - Progress saved to your account: Your cleared stages are saved, so you can pick up where you left off. - Privacy: Game progress is deleted along with your account when you delete it. - Bug fixes and performance improvements.

What's new in AttenQR 3.0 • Attendance confirmation: after checking in, students see a clear confirmation screen with a larger status icon. • Break-time mini game: a card-matching game for students, locked during class time. • Class schedules: set class times for all days or for each weekday. • Better teacher tools: view students class by class, search by part of a name or email, and add students or invite co-teachers by exact email. • Full support for English, Spanish, Korean, Chinese and Japanese. • Privacy: deleting an account removes all of its data right away. Accounts unused for 1 year are deleted after advance notice. • Improved security, stability, offline handling and large-text support.

• Teachers now see a short notice on the Statistics tab: attendance may not be recorded if students close the ad before it finishes after scanning the QR code • This message is shown only on teacher accounts and follows the selected language (EN/ES/KO/ZH/JA)

Bug fixes and reliability improvements • Semester dates now include the last day of the term • Attendance and enrollment QR codes are validated more strictly • Scan screen no longer gets stuck after an error or ad • Ad-free purchase status resets correctly after logout • Clearer offline message when there is no network (EN/ES/KO/ZH/JA) • More reliable login and sign-up error handling • Stronger Firestore security without breaking existing courses, enrollments, or attendance • Find ID now syncs names for existing accounts (open Admin once after update)

- Fixed Profile Settings and Language - Improved web display

What's New in v2.1.0 - Fixed an issue where scanning an enrollment QR code failed to enroll students in a course - Teachers can now manually mark absent students as present by tapping their name in the attendance list - Accidental attendance entries can be removed by tapping a present student - Fixed a visual glitch (yellow underline) on the QR scan confirmation popup - Improved translations for attendance status labels - Minor stability and performance improvements

AttenQR 2.0 - A cleaner, simpler experience • Fresh, modern design across the entire app • Find ID & password reset right from the login screen • Smoother attendance check-in: after watching the ad, you're taken straight to your attendance history • Attendance saving now retries automatically on poor connections - no more missed check-ins • Improved reliability for large classes with hundreds of simultaneous scans • New confirmation step to prevent choosing the wrong account type at sign-up • All new features fully localized in English, Spanish, Korean, Chinese, and Japanese

AttenQR 1.9.2 improves ad reliability and production readiness.

Teachers can now share courses with other teacher accounts, allowing shared access to student lists, QR codes, attendance records, and course editing while keeping course deletion limited to the original owner. This update also improves the Share Course dialog stability and strengthens QR attendance confirmation so attendance is recorded only after the required ad flow is completed.

Version 1.8.6 - Bug Fix Update • Fixed an issue where the app screen could close unexpectedly after viewing an ad • Fixed an issue where attendance could be marked without fully watching the required ad • Added a prompt to re-watch the ad if it was skipped before completion • Improved stability of the QR scan and attendance confirmation flow

Version 1.8.5 - QR Scan Experience Update • Improved QR scan feedback so students clearly know when attendance is recorded • Added visual confirmation when a QR code is detected • Enhanced success and error message dialogs for better readability • Multilingual support updated for all 5 languages

Version 1.8.4 - Bug Fix Update - Fixed button placement to comply with advertising policies - Improved layout and user interface spacing - Enhanced app stability and performance

New Features 1. Student Profile Photos Students can now upload profile photos to their accounts. This enhancement improves the visual experience and helps teachers identify students more easily. 2. Key Features: - Photo Upload: Students can select photos from their gallery or take new photos using the camera - Image Cropping: Built-in cropping tool with zoom functionality allows students to adjust their photo before uploading - Automatic Optimization: Photos are automatically compressed and resized to optimal dimensions (512x512 for display, 200x200 for thumbnails) 3. Teacher Benefits: - Student List View: Profile photos appear in the course student list - Statistics View: Photos are displayed next to student names in attendance statistics - Full-Size Preview: Tap on any thumbnail to view the original, full-size photo - Better Recognition: Visual identification makes attendance management easier

Error Message Improvements Context-Specific Error Titles - Replaced generic "Attendance Failed" message with specific error titles based on the actual cause - Added 9 distinct error titles covering all failure scenarios: - Already Checked - When attendance was already recorded - Invalid Date - When QR code date doesn't match today - Invalid QR Code - When QR format is incorrect - Course Not Found - When the course doesn't exist - Not Enrolled - When student isn't registered for the course - Not Class Day - When today isn't a scheduled class day - Out of Period - When outside the semester period - Check Failed - When attendance verification fails - Enrollment Failed - When course registration fails QR Image Attachment Feature - Teachers can now share QR codes via email, messages, or other apps - QR codes are generated as high-quality PNG images (512x512 pixels) - Images are automatically attached when using the Share function

Technical Improvements • Upgraded from standard interstitial to rewarded interstitial ads • Better ad completion rates with user consent • Optimized ad loading and error handling • Maintains all previous features and improvements Continued Features from v1.8.0 • Pinch-to-Zoom: Use two fingers on the QR scanner for intuitive zoom control • Camera Loading Indicator: Clear visual feedback during camera initialization • Smooth Camera Startup: Optimized performance for better user experience

What's New in Version 1.8.0: Enhanced QR Scanner Experience • Pinch-to-zoom: Use two fingers to zoom in/out on the QR scanner for better scanning accuracy • Camera loading indicator: Clear visual feedback while the camera initializes • Improved camera startup performance Technical Improvements • Optimized camera initialization process • Better handling for wireless device connections • Enhanced user experience with loading indicators This update focuses on improving the QR code scanning experience with more intuitive controls and better visual feedback.

v1.7.7 Update Major Improvements: • Complete multilingual support for all attendance check error messages • Messages like "You have already checked attendance" now display in your selected language • Full support for 5 languages (Korean, English, Spanish, Chinese, Japanese) Bug Fixes: • Fixed issue where attendance-related popup messages were only displayed in Korean • Improved app stability

• Added attendance completion messages • Remove ads forever with in-app purchase • Enhanced user experience and bug fixes