Life & fun · alternatives · 2026

24 alternatives to Rizon

A beautiful Golden Hour calculator for iOS

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Rizon launched in 2015; newer entries below may have overtaken it.

1. 1
   Timeless▲80

   A unique clock and calendar visualization

   2015 · its alternatives →

2. 2
   Watzon▲78

   Elegant timezone converter + reminder

   2016 · its alternatives →

3. 3
   Golden Hour by Exposure▲74

   iOS app to sunrise and sunset

   2014 · its alternatives →

4. 4
   Timekit▲97

   A comprehensive scheduling API (pre-launch)

   2014 · its alternatives →

5. 5
   Mathematics+▲78

   Your source for daily math workouts!

   2016 · its alternatives →

6. 6MT
   My time tracking tool for your text editor▲126

   2013 · wakati.me · its alternatives →

7. 7WJ
   We just released + open sourced our internal time tracking app Hours▲36

   2014 · happyhours.io · its alternatives →

8. 8KA
   KnightOS – An open-source OS for calculators▲180

   2016 · knightos.org · its alternatives →

9. 9
   Hours▲116

   Visual time tracking app

   2014 · its alternatives →

10. 10
    KnightOS▲136

    An open-source OS for calculators

    2016 · its alternatives →

11. 11
    IOS Calculator for Android▲63

    Visually Impressive Highly functional All-in-one!

    2016 · its alternatives →

12. 12
    SunIZup▲6

    Golden Hour Photography Calculator

    2016 · its alternatives →

13. 13
    Tydlig▲69

    The calculator reimagined for iOS 7

    2013 · its alternatives →

14. 14
    Off Of▲90

    A Simple Percentage Calculator for iOS

    2014 · its alternatives →

15. 15
    Game About Squares (iOS)▲85

    Sorry in advance for the lost productivity… Again !

    2014 · its alternatives →

16. 16
    TicToc▲67

    Simple, ad-free online clock

    2018 · its alternatives →

17. 17
    Day Flow▲66

    Time Manager and Efficiency Tracking

    2014 · its alternatives →

18. 18
    Puzzle 11▲57

    2048 for the number 11

    2015 · its alternatives →

19. 19CA
    CALX, a gestural RPN calculator for iOS▲5

    2015 · protonome.com · its alternatives →

20. 20
    Tydlig▲57

    A new kind of Calculator for iPhone & iPad

    2013 · its alternatives →

21. 21
    Calzy 3▲8

    The Smart Calculator: beautifully new + much² better

    2018 · its alternatives →

22. 22MW
    My Weekend Project - Progress App (Time Tracker)▲17

    2013 · justnorris.com · its alternatives →

23. 23PG
    Perfect Grid – my first iOS numbers puzzle game▲20

    2014 · itunes.apple.com · its alternatives →

24. 24AO
    An Open-Source iPad Calculator and Why Your App Won’t Make Any Money▲10

    2018 · medium.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 →