Both mark attendance automatically. They differ at the gate in the morning, with small children, and in what data the school ends up holding.
Updated
For student attendance, RFID cards usually suit schools better than fingerprint (biometric) machines. A card tap takes about a second, so a queue of hundreds of students moves quickly; it works the same for a five-year-old as for a teenager; and the school stores only a card number, not fingerprints. The weakness of RFID is that a card can be lost or handed to a friend, which schools handle with photo ID cards, a check at the gate and a fee for lost cards. Biometric machines prevent proxy attendance but are slower per person, read young children's fingerprints less reliably, and mean the school holds biometric data, which needs a parent's consent and careful protection under India's data protection law. Many schools use RFID for students and biometric only for staff.
| RFID card | Fingerprint (biometric) | |
|---|---|---|
| Time per student | About a second per tap | A few seconds, with retries |
| Young children | Works the same at any age | Small or worn fingerprints read less reliably |
| Proxy attendance | Possible if a card is shared | Very hard |
| Data the school holds | A card number | Fingerprint templates (sensitive) |
| Running cost | Cards, and replacements for lost ones | No cards; machines need cleaning and upkeep |
| Doubles as | Student ID card, library card, bus card | Attendance only |
With RFID, a morning rush of several hundred students passes in minutes. Fingerprint queues grow when a scan fails and has to be retried.
Card taps do not depend on fingerprint quality, which matters in pre-primary and primary classes.
A card number is easy to replace. Fingerprints are permanent, so storing them carries more responsibility.
Print the student photo on the card, have gate staff glance at taps, and send parents an arrival alert, so a missing child is noticed quickly.
The same card can be the ID card, the library card and the bus boarding card.
For a smaller number of adults where proxy matters most, a fingerprint machine for staff attendance is a common choice.
For students, usually yes: RFID is faster at the gate, works for young children and stores no fingerprints. Biometric is better at stopping proxy attendance, so some schools use it for staff only.
They can, which is the main weakness of cards. Photo ID cards, staff at the gate and instant arrival messages to parents make it rare and easy to catch.
Collecting children's biometric data needs a parent's consent and careful protection under India's Digital Personal Data Protection Act. Check your state's rules and keep the data only as long as needed.
Yes. Students tap RFID cards at the gate and are marked present or late against the school's cut-off time. Chalkbell works with readers schools already own, including older network readers whose vendor no longer supports them.
Every module writes to the same student record, so nothing is typed twice.
Students tap their card at the gate. Chalkbell marks them present or late against your school's cutoff time, and the class register is filled in before the teacher reaches the room.
Not "download our app and find your school". Parents install an app with your school's name and logo, and everything the school sends lands there.
Add the school, the student and a photo. The card draws itself front and back at real ID card size, ready to print on card sheets or save as a PDF.
Leave your number and we'll call you back the same working day, in Hindi or English.