Life & fun · alternatives · 2026

24 alternatives to ReflexX

A professional reaction time testing platform

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

1. 1
   Reflex Trainer▲69

   Improve your reaction times

   2019 · apps.apple.com · its alternatives →

2. 2
   Reflexiofree tier, from $299/mo▲295

   Behavioral learning that makes AI agents better over time

   Sep 2026 · reflexio.ai · its alternatives →

3. 3
   ReflexMaster▲1

   Train your reflexes like a pro gamer-Free reaction time

   Nov 2025 · reflexmaster.top · its alternatives →

4. 4
   Reflex Rooster▲100

   Can You React in Under 300ms!?

   Feb 2026 · reflexrooster.com · its alternatives →

5. 5
   Reflex▲217

   Prompt to production app, in Pure Python

   Oct 2025 · build.reflex.dev · its alternatives →

6. 6
   Reflex▲856

   Build web apps in pure Python

   2024 · github.com · its alternatives →

7. 7
   Reaction Test▲8

   Professional online reaction speed test

   2024 · its alternatives →

8. 8
   OneTapTool Reaction Time Test▲4

   Test your reflexes free — 5 rounds, instant score

   Jul 2026 · onetaptool.com · its alternatives →

9. 9
   Reaction Time Test▲3

   Benchmark your reflexes, clicking speed, and aim accuracy

   Dec 2025 · reaction-time-test.org · its alternatives →

10. 10
    Tempo Loop▲65

    Test your timing and reflexes

    2016 · apps.apple.com · its alternatives →

11. 11
    ReflexForge▲3

    Free browser-based reflex training for gamers

    Jul 2026 · reflexforge.com · its alternatives →

12. 12
    Speed Brain▲82

    Reaction training & brain games

    2021 · play.google.com · its alternatives →

13. 13
    Brain Booster▲97

    Test your memory, arithmetic and reflexes

    2021 · linktr.ee · its alternatives →

14. 14
    StroopTest▲7

    Hey HN, I made https://strooptest.run, a super simple Stroop test you can try in under a minute. No ads, no sign-up, just a clean way to test your brain’s reaction time and focus. Would love feedback or ideas for what to add next!

    2025 · strooptest.run · its alternatives →

15. 15
    Reaction Time Test▲6

    Online visual reaction speed testing tool

    2025 · reaction-time-test.online · its alternatives →

16. 16
    Mupixa 2.0▲74

    Remote usability testing, eye tracking, heatmaps, replays

    2021 · mupixa.com · its alternatives →

17. 17
    10 seconds: reflex games▲7

    Test your reflexes and your speed!

    2017 · play.google.com · its alternatives →

18. 18
    Mind Reflex▲9

    Sharpen your reflexes with fast-paced tap game

    2025 · captainkhanstudio.com · its alternatives →

19. 19
    F1 Reflex Test

    Test your reaction time and earn your F1 driver rank

    Mar 2026 · reaction-lab.netlify.app · its alternatives →

20. 20
    Check Reaction Time

    Test your reflexes online

    Jan 2026 · checkreactiontime.com · its alternatives →

21. 21
    Reflex▲61

    Effortlessly auto respond with custom messages

    2023 · github.com · its alternatives →

22. 22
    Pick a Test▲1

    Tests for reaction time, memory, and attention

    Aug 2026 · picktests.com · its alternatives →

23. 23
    Reflex Timer - Response Test▲6

    Test Your Response Time With Reflex Timer - Response Test

    2017 · apps.apple.com · its alternatives →

24. 24
    ReactionTime▲2

    Reaction Time Tool Website

    Mar 2026 · reactiontime.in · 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 →