Alternatives

Products that do what CalStack does

Floating widget that 2x your booked calls

1. 1
   Cal.com Platform▲1,602

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2. 2
   Booking.js by Timekit▲535

   Make a beautiful embeddable booking widget in minutes.

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3. 3
   Cal.com Companion Apps▲640

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4. 4
   TidyCal 2.0▲376

   Scheduling that's 10x faster & 10x simpler

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5. 5
   Calendar Signatures by Warmly▲307

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6. 6
   FloatBrowser▲158

   Mac menubar browser with tabs

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7. 7
   Float Mobile App 2.0▲83

   The fastest access to your schedule & timesheets on the go

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8. 8
   Float Schedule for iOS▲109

   Resource scheduling. Anywhere.

   2018

9. 9
   Chronock▲110

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   23d ago · chronock.ai

10. 10
    Callbird▲189

    Instant meetings mean no more missed opportunities

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11. 11
    Social Proof Widget▲103

    Boost your website conversions

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12. 12
    HubSpot Meeting Scheduler in Email▲150

    More meetings. Less drop-offs.

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13. 13
    Float▲121

    Visual resource planning for teams

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14. 14
    Status Ninja▲94

    Sync your Google calendar events to your Slack status

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15. 15
    BookingWidget▲2

    You want bookings on your website? I have the solution

    May 2026 · bookingwidget.online

16. 16
    Float Schedule for Android▲72

    Resource Scheduling. Anywhere.

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17. 17
    TidyCal▲94

    The simple booking solution

    2021

18. 18
    LeadMonk▲70

    Smart and versatile online appointment scheduling software

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19. 19
    CalNudge▲7

    Stop chasing RSVPs. Know who's coming to your meetings.

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20. 20
    Cal Clear▲11

    Scheduling that checks all your calendars. Zero tracking.

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21. 21
    42min▲26

    Free online scheduling with forms, meeting polls & open API

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22. 22OS
    Open-Source Real-Time Location Tracking and Sharing Project in Flutter▲5

    Hey everyone! I’m thrilled to announce GroupTrack, an open-source project built with Flutter for real-time location tracking and sharing among users. Whether you’re keeping your family connected or ensuring safety among friends, GroupTrack offers a flexible solution for location-based features. What is GroupTrack? GroupTrack is a Flutter-based application designed to demonstrate effective real-time location tracking and sharing. It showcases how to manage continuous location updates in the foreground and background, implement geofencing, and customize maps to create an enhanced…

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23. 23
    CalSync▲6

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24. 24
    CalNative Booking - Google Calendar▲2

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