Sling is a US-based scheduling and communication tool aimed at shift workers. It lacks UK-specific statutory leave rules, Working Time Regulations compliance, and direct payroll export to UK platforms. TimeTally is built for UK employers with statutory leave, TOIL tracking, and Xero/QuickBooks export at £3/employee/month.
| Feature | TimeTally | Sling |
|---|---|---|
| Pricing | £3/employee/month | Free–$1.70/user/month |
| UK statutory leave rules | ||
| Shift scheduling | Core feature | |
| Timesheet approval workflow | ||
| TOIL tracking | ||
| Payroll export (Xero/QB) | ||
| Working Time Regs compliance | ||
| iOS app |
Build and publish rotas, assign shifts, and let employees see their schedule from the iOS app. Leave requests are checked against the rota so managers always know who's covered.
Assign shifts, copy weeks, and publish rotas for your team in minutes
Working Time Regulations, statutory leave, and bank holidays all handled automatically
Approve leave with full visibility of the rota — no surprise gaps in cover


Employees see their upcoming shifts, leave balances, and pending requests in one place — all from the iOS app. No confusion about what shift they're on, no phone calls to find out.
Sling was built primarily for US-based businesses and focuses on employee scheduling, shift communication, and basic time tracking. UK-specific features like statutory 5.6 weeks entitlement, Working Time Regulations compliance, bank holiday management, and TOIL tracking aren't core to its product. TimeTally is designed for UK employers from the ground up. See our full comparison matrix.

UK employers need statutory leave calculations, bank holiday handling, and WTR compliance built into their software — not bolted on afterwards. TimeTally handles all of this automatically so you don't have to. Absence tracking and rota management are also included at no extra cost.
Automatically calculated from contracted hours and start date
UK bank holidays added automatically or treated as additional leave
Overtime automatically converts to time-off-in-lieu balance

Sling has limited payroll capabilities outside the US ecosystem. TimeTally exports directly to Xero and QuickBooks — the two most common payroll tools for UK SMEs — with approved hours, overtime, and leave all in one export. Shift patterns feed into timesheet calculations automatically.
