Work · alternatives · 2026

24 alternatives to Centenary Day

Hi HN, I’m Arnas, founder of Centenary Day (https://centenary.day). *Problem* We all know the basics - sleep better, move daily, eat whole foods—but busy calendars and decision-fatigue wreck consistency. *It has 3 moduless* • Routine builder • Nutrition planner (scales to household size) • Health organizer (schedule activities and testing) Looking for feedback on: 1. Onboarding friction 2. Must-have integrations 3. Pricing & free-tier limits Happy to answer anything—thanks for checking it out!

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Lifestack▲608

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   2024 · lifestack.ai · its alternatives →

2. 2
   Lifestack (Web + AI Scheduler)▲576

   First AI calendar to use health data for better productivity

   2025 · lifestack.ai · its alternatives →

3. 3
   Welltory▲1,028

   Measure your wellness. Use data to feel great every day.

   Nov 2025 · welltory.com · its alternatives →

4. 4
   Everyday 2.0▲294

   Simple & beautiful habit tracker for the Web, iOS & Android

   2020 · everyday.app · its alternatives →

5. 5
   Everyday 2.0▲344

   Simple & beautiful habit tracker for the Web, iOS & Android

   2021 · everyday.app · its alternatives →

6. 6
   Instant 3.0▲489

   Google Analytics for your life.

   2016 · instantapp.today · its alternatives →

7. 7
   everyday▲366

   Simple and beautiful habit tracker for iOS, Android and Web

   2018 · everyday.app · its alternatives →

8. 8
   Everyday 3.0▲327

   The visual habit tracker

   2023 · everyday.app · its alternatives →

9. 9
   Mayday▲231

   A calendar designed to help you spend time better

   2021 · mayday.am · its alternatives →

10. 10
    Simple Fasting & Meal Tracker▲184

    Build healthy habits with our Intermittent Fasting assistant

    2020 · simple.life · its alternatives →

11. 11
    100-Day Habit Tracker▲121

    Build long-lasting habits with the 100 day habit challenge

    2023 · systemsumo.gumroad.com · its alternatives →

12. 12
    First Day Chrome Extension▲87

    A beautiful mortality reminder to live greatly day by day

    2023 · getfirstday.net · its alternatives →

13. 13
    1 min workouts for people who sit all day▲153

    I am a software developer and in the last few months after recently becoming a father I was barely finding time for a proper workout. Recently I was reading about new research on Snack Exercises and how beneficial mini workouts of less than 2mins every so often, during the day are to our body. So, I decided to build an iOS App for me and others to help with this. The app generates a list of exercises that I need to tick to complete daily or loose my streak. The algorithm takes into account muscle groups and balancing the exercises to hit most main muscles. I also stayed going through all…

    2025 · shortreps.com · its alternatives →

14. 14
    The Longevity Index▲107

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    2019 · thelongevityindex.com · its alternatives →

15. 15WB
    We built our startup in 100 days▲147

    2013 · giveit100.com · its alternatives →

16. 16
    Superday▲144

    Track your activities to find balance between life and work

    2017 · its alternatives →

17. 17
    Life Fasting Tracker▲104

    Easy and social way to do intermittent fasting

    2018 · its alternatives →

18. 18
    Daily▲135

    Zen and the art of personal productivity

    2018 · apps.apple.com · its alternatives →

19. 19
    Day2Day▲71

    The new home screen for productive super-hero

    2018 · its alternatives →

20. 20
    EARLY Longevity▲80

    Optimize your health and live better for longer

    2022 · beearly.xyz · its alternatives →

21. 21
    Today▲66

    Calendar designed to help you focus

    2023 · tdy.sh · its alternatives →

22. 22
    Basis▲65

    Build your health & longevity stack

    2024 · apps.apple.com · its alternatives →

23. 23T8
    The 8 hour diet web app▲52

    2017 · the8hour.diet · its alternatives →

24. 24
    I built a health protocol cheatsheet from expert recommendations▲10

    The highest-leverage longevity habits (20% effort for 80% impact) — nutrition, exercise, sleep, supplements, and sauna protocols from evidence-based experts.

    Feb 2026 · healthyhabitsvault.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 →