Free and open first
Best Availability Management in 2026
Availability management software lets you show and arrange times for bookings, resources and places. This collection suits anyone selecting software to schedule or share availability on web, Android, iOS, API, macOS or Windows.
- 30 apps
- Research read 10 Oct 2026
- How the order is worked out
- 1
Amion
Free plan AndroidAPIiPhone+3Amion brings schedule creation, staff requests, shift swaps, and department-level on-call information into one scheduling service.
- 2
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Microsoft Planner
by Microsoft PlannerFree plan AndroidAPIiPhone+1Planner consolidates Microsoft 365 task and project work with several views, integrations and API support.
- 5
Appointlet
Free plan WebAppointlet combines booking pages with team scheduling and payment collection. The free plan has clear member, meeting, and page limits, while Premium adds integrations and booking controls.
- 6
Bookwhen
Free plan APIWebChoose Bookwhen if you need booking pages with recurring schedules, multiple registration options, and online or offline payment methods.
- 7
MRBS
Free plan LinuxSelf-hostedWebMRBS provides recurring bookings, schedule views, reports, and configurable access for shared resources. It requires a self-hosted installation and the server components specified in its guide.
- 8
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Sling
Free plan AndroidAPIiPhone+1Sling combines scheduling, team communication, and workforce-management features across free and paid plans. Check plan differences and mobile app requirements against your team's needs.
- 12
- 13
SimplyBook.me
by SimplyBook.meFree plan WebiPhoneAndroidSimplyBook.me covers client bookings, payments, reminders, and team calendars across web and mobile. The free tier is ongoing but limited, and HIPAA-enabling features need specific settings.
- 14
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Acuity Scheduling
by Acuity SchedulingFree trial AndroidAPIiPhone+1Acuity combines self-service booking with payment collection, calendar sync, and client-management features.
- 16
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TidyCal
Free plan WebTidyCal covers booking pages, calendar syncing, payment collection, and team scheduling, with storefronts across all plans.
- 18
YouCanBookMe
by YouCanBookMeFree plan WebYouCanBookMe covers individual, group and multi-host bookings, with calendar sync, payment collection and team administration.
- 19
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Joan Workplace
Free trial AndroidAPIiPhone+1Joan Workplace brings desk and room coordination together with attendance and utilisation data.
- 21
- 22
Chili Piper
by Chili PiperPaid AndroidAPIExtension+2Chili Piper offers booking and scheduling capabilities across plans with distinct seat and credit allocations.
- 23
QReserve
Free trial APISelf-hostedWebQReserve combines reservations, resource tracking, billing, and workflow controls for organizational scheduling.
- 24
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#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Compare free plans, trials and paid starting prices. Review booking pages, resource types, calendar connections, locations, availability rules and native integrations. If you need to read or change code, check the tool's open-source licence.
Questions
What is availability management software?
It helps present and organize available times for bookings, resources and locations.
Do these tools have free plans?
Some tools in this category include a free plan. Check the limits and included features before choosing.
Can I try a tool before paying?
A free trial is offered by tools in this category. Trial length and terms depend on the tool.
What pricing details should I compare?
Review free-plan terms, starting paid prices, billing intervals and whether the cost is published or provided on request.
What platforms do these tools support?
The list includes tools for web, Android, iOS, API, macOS and Windows.