OnTheClock vs Sling Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

OnTheClock

0.0 (0 reviews)

OnTheClock is a cloud-based time tracking software providing small businesses with GPS-enabled employee punching, automated payroll integration, and shift scheduling to simplify workforce management and ensure accurate labor reporting.

Starting at Free
Free Trial 30 days
VS

Sling

0.0 (0 reviews)

Sling is a comprehensive employee scheduling and shift planning software designed to help businesses manage hourly workforces through integrated time tracking, team messaging, and labor cost management tools.

Starting at Free
Free Trial 14 days

Quick Comparison

Feature OnTheClock Sling
Website ontheclock.com sling.is
Pricing Model Freemium Freemium
Starting Price Free Free
FREE Trial ✓ 30 days free trial ✓ 14 days free trial
Free Plan ✓ Has free plan ✓ Has free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment cloud mobile desktop cloud mobile
Integrations QuickBooks Gusto ADP Paychex Xero Square Thomson Reuters Millennium SurePayroll ADP Gusto QuickBooks Square Toast Shopify Xero Harri Push Operations
Target Users small-business mid-market small-business mid-market enterprise
Target Industries construction retail healthcare hospitality retail healthcare
Customer Count 0 0
Founded Year 2004 2015
Headquarters Clinton Township, USA New York, USA

Overview

O

OnTheClock

OnTheClock is a versatile time tracking solution designed to take the headache out of managing your workforce. You can track employee hours from any device, whether your team is in the office, on a construction site, or working remotely. By using GPS geofencing and fingerprint biometrics, you ensure that your staff is punching in from the right location at the right time, eliminating time theft and manual entry errors.

The platform streamlines your entire back-office workflow by automatically calculating PTO, tracking breaks, and generating audit-ready reports. You can seamlessly sync this data with popular payroll providers like QuickBooks or Gusto, cutting down the time you spend on administrative tasks. It is built specifically for small to mid-sized businesses that need a reliable, easy-to-use system to manage attendance without the high costs of enterprise infrastructure.

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Sling

Sling is a specialized scheduling and workforce management platform built to handle the complexities of shift-based work. You can create clear, conflict-free schedules in minutes using drag-and-drop tools and templates that account for employee availability and time-off requests. It helps you eliminate the chaos of paper schedules and endless group texts by centralizing all shift communication and coordination in one mobile-friendly hub.

Beyond simple scheduling, you can track actual hours worked with a built-in time clock and monitor labor costs in real-time to stay within your budget. The platform is designed for businesses of all sizes, from single-location cafes to large enterprise retail chains. By using Sling, you reduce absenteeism, prevent double-booking, and ensure your team always knows exactly when and where they are supposed to work.

Overview

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OnTheClock Features

  • GPS Geofencing Set specific geographic boundaries so you can ensure your employees are at the actual job site before they can punch in.
  • Biometric Fingerprint Prevent buddy punching by requiring a fingerprint scan, giving you peace of mind that the right person is on the clock.
  • Payroll Integrations Connect your time data directly to Gusto, QuickBooks, or ADP to process your payroll in just a few clicks.
  • PTO Tracking Manage vacation time and sick leave requests within the app so you can keep your staffing levels balanced automatically.
  • Shift Scheduling Create and publish employee schedules online so your team can view their upcoming shifts from their own mobile devices.
  • Mobile Punching Allow your remote or mobile teams to clock in and out using the native iOS or Android apps from anywhere.
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Sling Features

  • Shift Scheduling. Create and distribute schedules quickly using drag-and-drop tools that flag overlapping shifts and double-bookings automatically.
  • Mobile Time Clock. Turn any smartphone or tablet into a digital time clock so your employees can clock in and out with GPS verification.
  • Labor Cost Tracking. Set budgets and view real-time labor expenses as you schedule to ensure you never exceed your weekly or monthly targets.
  • Internal Messaging. Communicate with individuals or specific groups without sharing phone numbers, keeping all work-related conversations in one professional place.
  • Task Management. Assign specific to-do lists to shifts so your team knows exactly what needs to be accomplished during their working hours.
  • Shift Exchange. Empower your team to swap shifts or find coverage among themselves, subject to your final approval, reducing your administrative burden.

Pricing Comparison

O

OnTheClock Pricing

Free
$0
  • Up to 2 employees
  • Mobile app access
  • GPS tracking
  • Payroll exports
  • PTO management
S

Sling Pricing

Free
$0
  • Unlimited employees
  • Unlimited locations
  • Shift scheduling
  • Time off requests
  • Internal messaging
  • Mobile apps

Pros & Cons

M

OnTheClock

Pros

  • Extremely easy for employees to learn and use
  • Highly accurate GPS tracking for mobile workforces
  • Seamless integration with major payroll software providers
  • Excellent value for money for small teams

Cons

  • Mobile app interface feels slightly dated
  • Limited customization for complex overtime rules
  • Occasional lag when syncing large data sets
A

Sling

Pros

  • Extremely user-friendly interface for both managers and staff
  • Robust free version offers more value than most competitors
  • Mobile app notifications significantly reduce missed shifts
  • Easy to set up and learn without technical expertise

Cons

  • Mobile GPS clock-in can occasionally be glitchy
  • Reporting features could be more customizable for large data sets
  • Limited integration options compared to enterprise-only platforms
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