Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Information Silo Calculator launched in 2017; newer entries below may have overtaken it.

1. 1
   Data Silos▲10

   Free calculator to determine your Co. has information silos

   2017 · its alternatives →

2. 2
   KnightOS▲136

   An open-source OS for calculators

   2016 · its alternatives →

3. 3
   Calca▲87

   Symbolic calculator

   2014 · calca.io · its alternatives →

4. 4
   6284 Calc▲137

   An app that does your math & science homework for you 🤓

   2017 · apps.apple.com · its alternatives →

5. 5
   Calcbot▲111

   The intelligent calculator and unit converter by Tapbots

   2014 · tapbots.com · its alternatives →

6. 6TS
   The Surprisal Calculator WM±7▲6

   2025 · surprisal.onrender.com · its alternatives →

7. 7
   Numerical▲70

   Calculator Without Equal

   2014 · its alternatives →

8. 8CC
   Chmod Calculator▲6

   2014 · chmodcalc.com · its alternatives →

9. 9NS
   Notepad Style Online Calculator▲6

   2020 · type-calc.herokuapp.com · its alternatives →

10. 10
    Tydlig▲69

    The calculator reimagined for iOS 7

    2013 · tydligapp.com · its alternatives →

11. 11
    Tydlig▲57

    A new kind of Calculator for iPhone & iPad

    2013 · store.steampowered.com · its alternatives →

12. 12
    Calculator▲57

    Calculator with a history

    2022 · whowideweb.com · its alternatives →

13. 13AC
    A collection of tiny web tools and calculators▲5

    2022 · thetinytools.com · its alternatives →

14. 14SC
    Simple calculator, try urlcalc.com/1+2▲5

    2015 · urlcalc.com · its alternatives →

15. 15CT
    Calculators that provide insights on how to improve your finances▲6

    2018 · financialtoolbelt.com · its alternatives →

16. 16
    Rizon▲25

    A beautiful Golden Hour calculator for iOS

    2015 · reiseversicherung.de.com · its alternatives →

17. 17
    Coffee to Water Ratio Calculator▲7

    2019 · honestcoffeeguide.com · its alternatives →

18. 18
    One Button Calculator (Morse code Python REPL)▲6

    2023 · punkx.org · its alternatives →

19. 19
    A minimal calculator app that demonstrates the microservices concept▲7

    2018 · github.com · its alternatives →

20. 20UE
    User Engagement Calculator▲7

    2014 · userengagementcalculator.com · its alternatives →

21. 21DC
    Distance Calculator (weekend experiment)▲5

    2014 · distancecalculator.me · its alternatives →

22. 22
    Calzy 3▲8

    The Smart Calculator: beautifully new + much² better

    2018 · waplestuff.com · its alternatives →

23. 23AJ
    A JavaScript calculator using the latest ES6 features▲7

    2017 · calculator.portfolio.braham.biz · its alternatives →

24. 24PG
    Payment Gateway Calculator▲8

    2019 · founderhacker.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 →