AttenQR vs UnivTrack

AttenQR is an attendance system for classes that uses QR codes to record check-ins and enroll students. Students scan the daily attendance code, and teachers see check-ins appear in real time; a separate permanent code lets students join a course. Teachers can share courses with other teacher accounts to manage attendance together, then export records to CSV. The service is available on Android, iOS, and the web, and supports English, Spanish, Korean, Chinese, and Japanese. It has a free plan at free, while a one-time payment of 9.99 USD removes ads permanently; that premium status is tied to a user account and cannot be transferred. Ads are shown through Google AdMob, and the maker says attendance may not be recorded if a student closes the ad after scanning before it finishes. Course and attendance information is kept in US Firebase Cloud Firestore with encryption in transit and at rest and access controls. Data is automatically deleted 30 days after a course ends, so teachers can export it beforehand.

UnivTrack is a free, open-source attendance tracker for college and high-school students. It records attendance by course and shows live absence counts, highlighting courses that are nearing or over their limits. Users can create unlimited academic terms, choose custom names and start dates, and set each term to last from 5 to 18 weeks. Weekday schedules can include up to five morning and five afternoon course slots. For each class, users can mark Attended, Absent, or Holiday / No Class; long-press actions can update previous weeks in bulk. A term becomes read-only after its final week has passed. UnivTrack is an installable progressive web app with an offline app shell, home-screen icon, and full-screen mode. It runs on Android, iOS, Windows, macOS, and Linux, and includes English and Turkish translations with automatic browser-language detection. It uses Firebase Authentication and Cloud Firestore, with user data stored in the user's own Firebase project. Self-hosting requires configuring that project. The project says it has no third-party ads or tracking.