Dev tools · alternatives · 2026

24 alternatives to AboutNumber API

Interesting mathematical facts about integer number

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. AboutNumber API launched in 2020; newer entries below may have overtaken it.

1. 1
   AboutNumber.com▲7

   Everything you need to know about any number

   Jul 2026 · aboutnumber.com · its alternatives →

2. 2
   Stat of the day▲249

   Fascinating and important stats from the rest of world

   2020 · its alternatives →

3. 3
   Number interesting facts▲3

   App for discovering and learning facts about numbers.

   2023 · its alternatives →

4. 4
   Numbers API▲3

   Everything numbers!

   2019 · its alternatives →

5. 5
   NumbersFacts▲3

   interesting facts about numbers.

   2019 · its alternatives →

6. 6
   FunNumbers▲8

   This is a fun little website all about numbers.

   2024 · funnumbers.org · its alternatives →

7. 7PN
   Primeval Numbers▲25

   2024 · aravind.rs · its alternatives →

8. 8
   What is the Number▲6

   Numbers made fun: discover quirky facts instantly

   Sep 2025 · what-is-the-number.com · its alternatives →

9. 9
   Math Encrypt▲131

   Turn any number into a complicated math equation

   2024 · its alternatives →

10. 10DA
    dnum − A small TypeScript library to handle decimal numbers▲42

    2023 · github.com · its alternatives →

11. 11
    CountABC▲97

    Free counting API

    2023 · its alternatives →

12. 12
    Custom Template by CountAnything▲93

    Count things faster and more accurately.

    2025 · its alternatives →

13. 13
    Numbers▲77

    Find a fact about a number in your new tabs.

    2019 · its alternatives →

14. 14TA
    Turn any number into a complicated math expression▲36

    Credit goes to the contributors of https://github.com/enjeck/num2math for making the tool's core.

    2024 · scientific.place · its alternatives →

15. 15IP
    Integer Programming in the Browser▲52

    2017 · strandmark.net · its alternatives →

16. 16Q
    q1tifier▲5

    This is a side project we did. We call it q1tifier (pronounced 'quantifier') and it's main aim is to make sense of numbers. E.g. if you search for the number '5000' one of the result is '5000m = about the length of 89 NASA Space Shuttles' (see it here! http://duuble.com/q1tifier/view/3/=5000) Numbers don't really mean anything by themselves, so through this such numbers could be more meaningful! This idea spawned from seeing infographics that often compare numbers we real life stuff, and we decided to make a database for people to supply such small pieces of info and facts. The database is…

    2011 · its alternatives →

17. 17
    Let's Count API▲15

    Easily create and manage counters.

    2024 · its alternatives →

18. 18
    Crossnumber▲7

    Find Numbers, Math Puzzle

    2025 · apps.apple.com · its alternatives →

19. 19PN
    Prime numbers visualization▲21

    2017 · prime-numbers.info · its alternatives →

20. 20
    BIT NUMEROLOGY▲7

    Your Name, Decoded.

    2025 · bitnumerology.vercel.app · its alternatives →

21. 21IA
    isEven API – tell if a number is even SaaS▲25

    2020 · isevenapi.xyz · its alternatives →

22. 22TS
    Twelve Simple Algorithms to Compute Fibonacci Numbers▲13

    2020 · arxiv.org · its alternatives →

23. 232S
    2025 = sum(I^3) for I = 0..9▲12

    This year's number is kinda fun: 2025 = 0^3 + 1^3 + 2^3 + 3^3 + 4^3 + 5^3 + 6^3 + 7^3 + 8^3 + 9^3 Which is equivalent to: 2025 = (0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9) ^ 2 = 45 ^ 2 Next time this will happen is 1000 years from now, in 3025. See y'all then!

    2025 · its alternatives →

24. 24
    BinLookup.io▲16

    BIN Data Made Simple

    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 →