What does 'mobile attendance' actually require?
Five things. (1) Low system requirements, Android 8+, 2 GB RAM, under 15 MB APK. (2) Offline-first design, local queue, signed timestamp, deferred sync. (3) Low data usage, under 5 MB/month per employee. (4) Multilingual UI, at minimum English, Hindi and one regional + Arabic for GCC. (5) Selfie + GPS verification, to prevent the obvious abuses of a phone-based clock.
Products missing any of the five fail in real-world deployments. WappBlaster ships all five on one Attendance Suite subscription with payroll, leave and reports included, see the pricing page for your team size.
Key takeaway: Mobile attendance succeeds or fails on five things: cheap-phone compatibility, offline mode, low data, multilingual UI and selfie + GPS verification.