Pairday
A work and pay app for part-time workers and store owners in Korea (Korean name: 월급체크). Log clock-in and clock-out, and it calculates this month's gross pay, including the weekly holiday allowance and night or overtime premiums. Take-home pay is shown as an estimate based on how the income is reported.
Seven free pay calculators that need no sign-up are available on the albacheck.co.kr website.
- Started
- June 2026
- Platforms
- iOS, Android, web pay calculators
- Languages
- Korean
- Built with
- React 18, Vite, Tailwind CSS, Capacitor 8, Firebase
Key features
Clock in, clock out, this month's pay
While on shift, hours and estimated gross pay count up; at clock-out they are added to the month. Missed days can be added from the calendar.
Weekly holiday allowance and premiums
Weeks of 15 hours or more get the weekly holiday allowance. Night, overtime and holiday premiums follow each store's settings.
Take-home pay estimate
Estimated for 3.3% business income, daily work or the four social insurances. If the method is unknown, a range is shown.
Several stores and payslips
Totals per store and overall, and a payslip PDF per store to share.
Owner mode
Invited staff clock in from the app; the owner sees today's shifts and keeps payment records.
Web pay calculators
Weekly holiday, night, overtime, severance, 3.3% tax, annual leave pay and a payslip preview, with no sign-up.
What TNT did
- Service planning and screen design
- Pay rules implementation and tests
- iOS and Android app development and store release
- Web calculators, built and run
- Ongoing updates (currently version 1.9)
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