Most tuition-class management systems in Sri Lanka start the same way: before you can mark a single attendance record, you're buying a card reader, a fingerprint scanner, or a batch of smart cards. That's a real upfront cost, and it's a decision you're making before you've used the software for a single day.
ClassManager takes the opposite approach. Attendance starts on the phone your staff already carry, using an NFC tap or a barcode scan. There's no reader to buy and no cards to print before day one. If your front desk later gets busy enough to want a dedicated terminal, Smart POS is there as an upgrade, not a prerequisite.
The result is that you can trial the whole system for free, with your actual students, before deciding whether it's worth paying for. That's a very different commitment than a one-time hardware purchase.