Why it comes up: AbsenceSoft covers 200+ US leave and accommodation laws with a public REST API, sold by quote.
Stands out: The AbsenceSoft Compliance Engine tracks 200+ federal and state leave and accommodation laws and stacks concurrent leaves, and the Payroll Calculations module applies state paid leave offsets per pay period. The API is publicly documented in OpenAPI 3.1 at absencesoft.stoplight.io, with Employee, Case, Employer and Communications APIs and webhooks.
Watch out: There is no public price, and custom outbound file feeds and API build work cost extra. Payroll Calculations produces estimates and export files, not payments, so payroll still runs in your own system.
Best for
- US employers with high leave and accommodation caseloads
- HR teams moving FMLA and ADA work off spreadsheets
- TPAs and PEOs administering leave for many employers
Read the AbsenceSoft write-up · Tilt vs AbsenceSoft
Why it comes up: Sparrow runs leave administration for you as an outsourced service rather than software HR operates.
Stands out: Sparrow pairs every customer with a dedicated leave specialist and files state and carrier paperwork for the employee, which its site says cuts employee filing time from 10 to 20 hours to about 15 minutes. The personalized payroll plan and reconciliation work is unusual for a leave vendor.
Watch out: HRIS and payroll connections run by file feed rather than a published API, and pricing is only available through sales. Coverage is limited to leaves in the United States and Canada.
Best for
- Distributed US employers juggling multiple state paid leave programs
- People teams without in-house leave expertise
- Payroll teams that struggle to calculate pay during leave
4.8 on Capterra from 57 reviews
Read the Sparrow write-up · Tilt vs Sparrow
Why it comes up: LeavePro is Alight's enterprise leave software for employers above 2,000 people, sold by quote.
Stands out: Employers can run it themselves or co source, and Alight says both paths are tracked in LeavePro. A 2025 Worklife release describes an API integration between LeavePro and Workday.
Watch out: ReedGroup, the absence business behind LeavePro, has been part of Alight since 6 December 2022. The page is written for large US employers, and there is no public price.
Best for
- US employers above 2,000 people with an internal leave team
- Programs that want software now and outsourcing only for some case types
- Workday customers that can use the LeavePro integration
Read the LeavePro write-up · Tilt vs LeavePro
Why it comes up: Stiira is also in house leave software, priced by quote with implementation from $1,995.
Stands out: The same company sells a separate edition to third party administrators, with implementation starting at $2,995. The employer page says implementation typically takes 5 to 6 weeks and that employee self service is included.
Watch out: The subscription runs from $995 a month billed annually, on top of a one time implementation fee from $1,995, so it suits programs with real leave volume. No HRIS product names are listed.
Best for
- US HR teams that want to administer leave themselves
- Employers tracking continuous, intermittent, and reduced schedules
- Programs that move from FMLA into an ADA leave when job protection ends
Read the Stiira write-up · Tilt vs Stiira
