r/QuantifiedSelf

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About r/QuantifiedSelf

Welcome to QuantifiedSelf.

The community at a glance

r/QuantifiedSelf is a Subreddit for Quantified Self Trackers with roughly 26K members. It has been around since 2011. It uses a forum format for communication. It is the 5th largest community in the Quantified Self topic page.

Roughly 8K members have joined in the past year. Popular discussion topics include App, Tracking, and Data. Common discussion themes are Solution Requests and Advice Requests. Product recommendations often mention app, tracker, and wearable.

On Reddit
Established 2011
26K Members

Community Topics

Community Features

Forum

This community has a forum

Subreddit Analysis

via GummySearch
Yearly: +8K members
Growth: +46.6% / year

Member growth over time

All time (yearly)

  • 2013: 777 members
  • 2014: 788 members
  • 2015: 517 members
  • 2016: 517 members
  • 2017: 721 members
  • 2018: 1K members
  • 2019: 1K members
  • 2020: 2K members
  • 2021: 2K members
  • 2023: 4K members
  • 2024: 2K members
  • 2025: 5K members
  • 2026: 6K members

Past year (monthly)

  • Aug: 316 members
  • Sep: 345 members
  • Oct: 377 members
  • Nov: 637 members
  • Dec: 595 members
  • Jan: 479 members
  • Feb: 695 members
  • Mar: 1K members
  • Apr: 975 members
  • May: 1K members
  • Jun: 882 members
  • Jul: 307 members

Themes

  • Solution Requests
    6 posts in the past month
    1. The only data analysis app you need
    2. Wearables with best data export and customization?
    3. My mom was tracking her blood pressure in a notebook… so I built her a simple offline app.
    #1
    Solution Requests
    The only data analysis app you need · Wearables with best data export and customization? · My mom was tracking her blood pressure in a notebook… so I built her a simple offline app.
    6
  • Advice Requests
    3 posts in the past month
    1. I turned the spreadsheet I shared here before into an app. Would like to hear you feedback
    2. I’m a CS student trying to build a sleep agent to track sleep but I’m stuck on a few things
    3. I combine HRV, sleep, resting HR and training load into one daily number that decides whether I lift heavy or rest — here's the weighting, would love your critique
    #2
    Advice Requests
    I turned the spreadsheet I shared here before into an app. Would like to hear you feedback · I’m a CS student trying to build a sleep agent to track sleep but I’m stuck on a few things · I combine HRV, sleep, resting HR and training load into one daily number that decides whether I lift heavy or rest — here's the weighting, would love your critique
    3
  • Self-Promotion
    2 posts in the past month
    1. made an open source tracker that keeps all my health metrics in one place instead of 5 different apps
    2. Built an all-in-one health/training/nutrition tracker to replace my pile of spreadsheets. Would love this sub's thoughts.
    #3
    Self-Promotion
    made an open source tracker that keeps all my health metrics in one place instead of 5 different apps · Built an all-in-one health/training/nutrition tracker to replace my pile of spreadsheets. Would love this sub's thoughts.
    2
  • Pain & Anger
    1 post in the past month
    1. This is what is annoying about the wearable space…
    #4
    Pain & Anger
    This is what is annoying about the wearable space…
    1

Topics

  • App
    15 posts in the past month
    1. I turned the spreadsheet I shared here before into an app. Would like to hear you feedback
    2. Weekly Lifestyle Data and Analytics App Thread
    3. Weekly Lifestyle Data and Analytics App Thread
    #1
    App
    I turned the spreadsheet I shared here before into an app. Would like to hear you feedback · Weekly Lifestyle Data and Analytics App Thread · Weekly Lifestyle Data and Analytics App Thread
    15
  • Tracking
    12 posts in the past month
    1. are we tracking ourselves for self-knowledge, or are we just control freaks with spreadsheets?
    2. Has your tracking ever actually changed a decision, or does most of it just sit there?
    3. anyone else tracking keystroke timing as a daily state metric? few weeks in and the variance is surprisingly legible
    #2
    Tracking
    are we tracking ourselves for self-knowledge, or are we just control freaks with spreadsheets? · Has your tracking ever actually changed a decision, or does most of it just sit there? · anyone else tracking keystroke timing as a daily state metric? few weeks in and the variance is surprisingly legible
    12
  • Data
    7 posts in the past month
    1. 7 years of HRV data, still averaging ~35 ms. What actually moves the needle?
    2. Weekly Lifestyle Data and Analytics App Thread
    3. Weekly Lifestyle Data and Analytics App Thread
    #3
    Data
    7 years of HRV data, still averaging ~35 ms. What actually moves the needle? · Weekly Lifestyle Data and Analytics App Thread · Weekly Lifestyle Data and Analytics App Thread
    7
  • Data Tracking
    6 posts in the past month
    1. I have tracked every hour of my life for over a year
    2. Has anyone used Claude Fable 5 to build a Quantified Self project?
    3. For people who track a lot of data, what still feels like guesswork?
    #4
    Data Tracking
    I have tracked every hour of my life for over a year · Has anyone used Claude Fable 5 to build a Quantified Self project? · For people who track a lot of data, what still feels like guesswork?
    6
  • Hrv
    6 posts in the past month
    1. I correlated my HRV against everything I measure for 4 years.
    2. 7 years of HRV data, still averaging ~35 ms. What actually moves the needle?
    3. What I learned about HRV from logging ~3,000 meditation sessions with pre/post measurement
    #5
    Hrv
    I correlated my HRV against everything I measure for 4 years. · 7 years of HRV data, still averaging ~35 ms. What actually moves the needle? · What I learned about HRV from logging ~3,000 meditation sessions with pre/post measurement
    6

Product recommendations

  • app
    12 posts in the past month
    1. Best apps to use
    2. Best nutrition app
    3. what is the best tracking app you all use
    #1
    app
    Best apps to use · Best nutrition app · what is the best tracking app you all use
    12
  • tracker
    10 posts in the past month
    1. Best Life Achievements Tracker
    2. best location & activity tracking app? (for iPhone)
    3. I will create the best tracking and productivity platform for free, what would you like to have?
    #2
    tracker
    Best Life Achievements Tracker · best location & activity tracking app? (for iPhone) · I will create the best tracking and productivity platform for free, what would you like to have?
    10
  • wearable
    5 posts in the past month
    1. Choosing wearable devices/best health tracking anyone?
    2. Best wearable for various biohacking metrics (sleep, glucose, HRV, etc)
    3. Best Wearable for in-depth health data?
    #3
    wearable
    Choosing wearable devices/best health tracking anyone? · Best wearable for various biohacking metrics (sleep, glucose, HRV, etc) · Best Wearable for in-depth health data?
    5
  • app for tracking
    4 posts in the past month
    1. what is the best tracking app you all use
    2. Best app for tracking things on a scale of 1-10?
    3. Best app for tracking nutritional intake, for syncing with Apple Health and general interoperability?
    #4
    app for tracking
    what is the best tracking app you all use · Best app for tracking things on a scale of 1-10? · Best app for tracking nutritional intake, for syncing with Apple Health and general interoperability?
    4
  • health tracking
    4 posts in the past month
    1. Choosing wearable devices/best health tracking anyone?
    2. For people in the Apple Ecosystem (Apple Watch) what is the best way track and view insights to data?
    3. Best ai related health check services
    #5
    health tracking
    Choosing wearable devices/best health tracking anyone? · For people in the Apple Ecosystem (Apple Watch) what is the best way track and view insights to data? · Best ai related health check services
    4
View full analysis on GummySearchSynced 7/11/2026

Frequently asked questions

Who is r/QuantifiedSelf for?
Best for Quantified Self Trackers enthusiasts looking for a Reddit-based community with forum discussion.
Is r/QuantifiedSelf free to join?
This listing is not marked as paid-only. Access rules and any fees are decided by the community.
How many members does r/QuantifiedSelf have?
Roughly 26K members, based on figures reported by the community or its host. Member counts are approximate and change over time.
What platform is r/QuantifiedSelf on?
r/QuantifiedSelf runs on Reddit. Reddit communities (or "subreddits") are forum-based groups on the popular social news aggregation, web content rating, and discussion website Reddit. Reddit is commonly known as "the front page of the internet". Users submit content to the site such as links, text posts, and images, which are then voted up or down and discussed by other members. From investing Reddit communities, to professional ones, to ones just for laughs, you're likely to find a community for you on Reddit.
What topics does r/QuantifiedSelf cover?
On the Hive Index, r/QuantifiedSelf is organized under Quantified Self Trackers.
How do I join r/QuantifiedSelf?
You can join r/QuantifiedSelf by clicking this link, or pressing the "Go to community" button above.
What are the Quantified Self communities like?
Communities for people tracking their health data, from continuous glucose monitors and wearables to sleep logs and heart rate variability. Discussion covers protocols, device comparisons, and making sense of personal data, with a mix of biohacking enthusiasts, health researchers, and everyday people optimizing their routines.
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Added 9/30/2021

Monthly Stats

6
Views /mo
(-40%)
5
Visitors /mo
(-37%)
0
Referrals /mo

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