Compare OpenTimeClock and Kimai on pricing, features, platforms, and ratings — both Time Tracking tools, Freemium vs Freemium / Open Source pricing to decide…
At a Glance
OpenTimeClock
Kimai
Primary category
Time Tracking
Time Tracking
Rating
Not documented
Not documented
Pricing model
Freemium
Freemium / Open Source
Starting price
Free (unlimited users); Paid plan from $39/month
Free (self-hosted); Kimai Cloud from EUR 2.99/user/month
Free plan
Yes
Yes
Free trial
Not documented
Yes
Platforms
Web, iOS, Android, Mac, Windows
Web
Team collaboration
Not documented
Not documented
AI features
Not documented
Not documented
Public API
Not documented
Yes
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
OpenTimeClock
Free Plan — Free N/A
Paid Plan (Monthly) — $39/month Monthly
Paid Plan (Yearly) — $399/year (~$33.25/month) Annual
Sponsor Link — Free (in exchange for a homepage link) N/A
Kimai
Self-Hosted — Free N/A
Kimai Cloud Standard — EUR 2.99/user/month (annual), EUR 3.99 monthly Monthly or annual
Kimai Cloud Professional — EUR 3.99/user/month (annual), EUR 4.99 monthly Monthly or annual
Pros & Cons
OpenTimeClock
Pros
Free plan supports unlimited employees, which is rare among time-tracking competitors that charge per seat.
Paid plan is inexpensive relative to per-user competitors, especially for larger teams.
Supports multiple clock-in methods, including GPS, facial recognition, and offline mode.
Includes job costing and PTO accrual tracking typically reserved for pricier platforms.
Nonprofit-friendly pricing and a free 'Sponsor Link' option for cost-conscious organizations.
Cons
Free plan loses PDF/Excel report export after the initial 30-day trial period.
Company does not publicly disclose a physical headquarters or leadership team, which may concern due-diligence-conscious buyers.
Interface and design feel dated compared to newer, VC-backed time-tracking competitors.
Smaller integration ecosystem with payroll and HR platforms than larger competitors like TSheets/QuickBooks Time or Deputy.
Customer support is phone/email based with limited hours rather than 24/7 live chat.
Kimai
Pros
Free, self-hostable open-source core with no user limits
Low per-seat pricing on Kimai Cloud compared to many SaaS competitors
Extensive JSON API and plugin ecosystem for customization
GDPR-compliant hosting option in Germany
Active development with a long project history since 2006
Cons
Self-hosting requires server setup and maintenance effort
Advanced features like approvals and expense tracking require the Professional plan or plugins
Smaller company behind the product compared to large SaaS time-tracking vendors
Interface may feel less polished than premium commercial competitors
Small business payroll-ready time tracking — Small businesses use the free or paid plan to track hourly employee attendance and export data for payroll processing.
Multi-site and field-service workforce tracking — Companies with mobile or multi-location employees use GPS geofencing and offline clock-in to verify attendance away from a central office.
Nonprofit and school attendance tracking — Nonprofits and schools with large or fluctuating headcounts use the unlimited-user free tier to track staff or volunteer hours without per-seat costs.
Kimai
Freelance time and invoice tracking — Freelancers track billable hours per client and generate invoices automatically.
Agency project time management — Agencies track team hours across multiple clients and projects with approval workflows.
Self-hosted internal time tracking — Companies with data-residency requirements self-host Kimai to keep full control of timesheet data.