Dev tools · alternatives · 2026

24 alternatives to BizCal API

Holiday-aware business day calculations for 15 counries

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Cal.com Platform▲1,601

   Build your pixel-perfect booking experience with Atoms

   2024 · cal.com · its alternatives →

2. 2
   Business Day Calculator▲4

   18 free deadline calculators, holidays in 25 countries

   Jul 2026 · businessdaycalculator.org · its alternatives →

3. 3
   OneCal▲323

   Synchronize your calendars in real-time

   2022 · onecal.io · its alternatives →

4. 4
   TidyCal 3.0▲935

   The simple calendar and booking solution

   2024 · tidycal.com · its alternatives →

5. 5
   FestDays▲67

   Global Holiday Data API made easy

   2020 · festdays.dev · its alternatives →

6. 6
   Working Days & SLA Calculator API▲3

   Instantly calculate SLAs, ETAs, and T+2 settlement dates.

   Mar 2026 · rapidapi.com · its alternatives →

7. 7
   zcal▲481

   The free Calendly alternative that makes scheduling personal

   2021 · zcal.co · its alternatives →

8. 8
   Reminders API▲190

   A powerful reminder scheduling API

   2017 · its alternatives →

9. 9
   Calendar▲257

   Smart calendar that makes teams more productive

   2020 · its alternatives →

10. 10
    Recal.dev▲365

    Resend, but for Calendar & Scheduling. API. SDK. MCP.

    2025 · recal.dev · its alternatives →

11. 11
    zcal▲259

    Beautiful Typeform-inspired scheduling pages

    2025 · zcal.co · its alternatives →

12. 12
    Dotcal Scheduler▲184

    Scheduling hub for teams

    2023 · dotcal.co · its alternatives →

13. 13
    CozyCal Scheduling▲99

    The easiest way to book clients on your website 😊

    2018 · cozycal.com · its alternatives →

14. 14
    Multi Zone Sync Clock▲94

    Schedule meetings across timezones with ease

    2024 · chromewebstore.google.com · its alternatives →

15. 15
    neatCal▲171

    User friendly scheduling applications

    2019 · neatcal.com · its alternatives →

16. 16
    Neocal▲131

    AI-powered modern calendar that helps you plan

    2025 · neocal.com · its alternatives →

17. 17
    Business Days Calculator▲5

    Free business days calculator - 166 countries, no signup

    Jul 2026 · calculatebusinessdays.com · its alternatives →

18. 18
    Supercal▲172

    Maximize your deep work hours

    2024 · its alternatives →

19. 19
    WizCal▲82

    AI assistant to schedule all your meetings in seconds.

    2016 · its alternatives →

20. 20
    BizCalc▲64

    Free business calculators — instant results, no signup

    Apr 2026 · bizcalc.talha-naeem1920.workers.dev · its alternatives →

21. 21
    Global Sync Meetings▲120

    Schedule meetings across timezones with ease

    2024 · chromewebstore.google.com · its alternatives →

22. 22
    Ocal – AI Calendar That Schedules Assignments for You▲42

    We built Ocal, an AI-powered calendar that automatically schedules assignments as soon as they’re assigned. We realized that most students don’t struggle with time management because they’re lazy—they struggle because time planning itself is an overhead. The mental effort of estimating task durations, figuring out when to work, and actually doing the work is non-trivial. So we decided to eliminate that friction. How It Works: 1 LMS Integration (Canvas for now) – Ocal scans your assignments, extracts deadlines, and understands task complexity. 2 AI-Scheduled Work Blocks – Based on your habits…

    2025 · ocal.ai · its alternatives →

23. 23
    GroupCal 2.0▲88

    Shared calendar for individuals and businesses

    2022 · groupcal.app · its alternatives →

24. 24
    Biz Timesheet▲11

    Simplified timesheet app for small businessess

    2024 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →