Dev tools · alternatives · 2026

24 alternatives to Calculist

The open source thinking tool for problem solvers

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Calculist launched in 2016; newer entries below may have overtaken it.

1. 1
   Dynalist▲177

   A web app for structuring your thoughts into lists

   2015 · dynalist.io · its alternatives →

2. 2
   KnightOS▲136

   An open-source OS for calculators

   2016 · its alternatives →

3. 3
   Restyaboard▲197

   An open source alternative to Trello

   2015 · restya.com · its alternatives →

4. 4
   Sopler▲83

   A real-time, collaborative to-do list

   2014 · its alternatives →

5. 5
   lagom▲109

   A simplistic presentation generator

   2016 · lagom.re.im · its alternatives →

6. 6
   Listomatic▲89

   The intelligent list maker

   2016 · its alternatives →

7. 7
   Fosshub▲79

   An open source for free and open source tools

   2015 · fosshub.com · its alternatives →

8. 8
   Microsoft Planner▲198

   The project management tool for Office

   2016 · its alternatives →

9. 9
   Calculo▲195

   Calculator from the future

   2024 · calculo.tech · its alternatives →

10. 10
    How To Build This▲144

    A platform for makers to find the right tools

    2017 · its alternatives →

11. 11
    Stack▲88

    A task manager for Devs & Designers

    2015 · macropod.com · its alternatives →

12. 12
    Listables▲122

    A collaborative checklist app built on community

    2016 · listables.com · its alternatives →

13. 13
    HandyCalc▲80

    A simple tip calculator

    2017 · apps.apple.com · its alternatives →

14. 14
    Developer Ipsum▲110

    Lorem for nerds

    2021 · developer-ipsum.netlify.app · its alternatives →

15. 15
    Thoughts▲121

    The forward thinking tool

    2015 · thoughts.ink · its alternatives →

16. 16
    Paperpile▲66

    No-fuss reference management for the web

    2014 · paperpile.com · its alternatives →

17. 17
    Calca▲87

    Symbolic calculator

    2014 · calca.io · its alternatives →

18. 18
    Calcbot▲111

    The intelligent calculator and unit converter by Tapbots

    2014 · tapbots.com · its alternatives →

19. 19
    Pointer▲95

    A reading club for developers

    2015 · pointer.io · its alternatives →

20. 20
    Kernel Cards▲95

    A simpler way to create a digital content strategy

    2016 · kernelcards.com · its alternatives →

21. 21
    Probs▲78

    Free crowd-sourced problem solving

    2015 · its alternatives →

22. 22
    Hawk Eye▲78

    A useful app for GitHub Notifications

    2017 · harksys.com · its alternatives →

23. 23
    DailyHub▲69

    A personal command center for projects, tasks, and habits.

    15d ago · baselhusam.github.io · its alternatives →

24. 24
    Software Daily - 10 Philosophies for Engineers▲71

    Strategies and reflections on software engineering

    2016 · softwareengineeringdaily.com · 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 →