Comparison

chrono.me vs Self

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

chrono.me

Log and visualize various aspects of your life, from health and fitness to personal habits. Gain insights through customizable dashboards and charts. Offers offline mode and data export for privacy and flexibility.

Highlights
  • Customizable data logging
  • Organize with groups and tags
  • Input via screen and reminders
  • Modern UI with dark theme
  • Offline mode
  • Customizable dashboard
  • Data analysis with charts and stats
  • Data export and import
Features
Read full description

chrono.me is a logging app that allows you to keep up to date on every factor of your life! Log information such as weight, medical status, sport activities, or anything else you can think of. Use the app to visualize and get insights from it over time. Free Features: • Highly customizable, you can tailor your data to meet your own needs. • Organize and categorize your information by using groups and tags. • You can log in your data through chrono.me’s input screen and reminders. • Modern UI with dark theme option. • No ads. • Offline mode for privacy protection. • View your current stats with our customizable dashboard. • Use line and pie charts, a calendar view, statistics, and other tools to analyze your data. • Simple data aggregation for daily, weekly, and monthly stats. • Export and import your data. • An option to access your data from a browser. Pro Features: • Unlimited tracking – track more than 10 parameters simultaneously. • Set goals – define and monitor goals using your logged data. • More charts - comprehensive data overviews + bar charts for in-depth analysis. We’re always happy to help! Send us an email at contact@zagalaga.com if you have any questions, comments, or suggestions for improving chrono.me. Terms of use: https://www.chrono.me/terms

About

Self

This app helps you conduct self-experiments to understand the impact of behavioral changes on your health, wellness, and productivity. It provides tools to set up trials, track outcomes, and gain personalized insights through automated analysis and daily reminders.

Highlights
  • Conduct self-experiments
  • Track behavioral outcomes
  • Gain personalized insights
  • Automated statistical analysis
  • Daily check-in reminders
  • Data-driven self-improvement
Features
Read full description

Self-experimentation is the process of conducting trials where you are both the researcher and the subject. Through modifying your behaviors and reporting outcomes, you can gain concrete insights into the efficacy of whatever self-improvement you seek to make. Self-experimentation is a data-driven way to gain ultra-personal insights into the driving factors behind your health, wellness, and productivity. Through Self-E, you can set up experiments, view your data, and attain individualized insights through automated statistical analysis. Self-E sends daily reminders to check in so that your experiment stays consistent and structured.

Screenshots

chrono.me4 screens
Self4 screens

Verdict

The call

The clearest difference is rating: Self at 5.0 against chrono.me's 4.4. Self also leads on in-app purchases (none vs 2). chrono.me's advantage is ratings volume (7 vs 2). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. chrono.me sells 2 in-app purchases, starting at $5.99 per year. Self asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Self holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

UpkeepUpdate frequency

chrono.me ships an update every 3 weeks, Self every 6 weeks. The most recent releases landed on October 14, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
chrono.me versus Self: the parameters behind the verdict, then further details
Parameterchrono.meSelf
PriceFreeFree
Rating4.4 (7 ratings)5.0 (2 ratings) — better
Positive reviews83.3% of reviews—
Number of ratings7 — better2
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.014.5 — better
Further details — not scored
Size59 MB19 MB
Age rating4+4+
DeveloperGuy TalmorBrown University Computing & Information Services

Customer experience

chrono.me

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews12 reviews
Positive83.3%
Neutral8.3%
Negative8.3%

Self

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

chrono.me

Subscriptions1
  • Pro Subscription$5.991 Year
One-time1
  • One-time purchase$17.99
None

Self

No in-app purchases

Questions

Is chrono.me free?
chrono.me is free to download, with in-app purchases available.
Is Self free?
Self is free to download, with no in-app purchases.
Which has better reviews, chrono.me or Self?
Self is rated higher. chrono.me averages 4.4 out of 5 from 7 ratings, while Self averages 5.0 from 2 ratings.
Do chrono.me or Self have ads?
Neither chrono.me nor Self shows ads.
Which is updated more often, chrono.me or Self?
chrono.me ships an update every 3 weeks, and Self every 6 weeks. Most recently, chrono.me was updated on October 14, 2026 and Self on September 24, 2026.

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