Apps by Jonathan Mercer
CRL8 – Correlate daily habits app icon

Productivity

CRL8 – Correlate daily habits

Jonathan Mercer

Free download 4.88 · 1 storefront · 8 ratings In-app purchases unconfirmed
Open on Apple

About this app

Find your most productive habits or find which habits are holding you back. Track all your habits and find the correlation between them. * Does eating a late dinner mess with your sleep? * Does going for morning walks increase the time you spend on side-projects? * Do consistent chats with friends make you less anxious? * Does your period affect your gym performance? How it works * Create tags. Each tag either happens or doesn't in a day * At the end of the day, go through each tag that you you that day * After a few days, there should be enough data to gather correlations between tags For best use of the app: * Track as much as you can. Even the mundane can lead to a correlation (like taking turmeric in the morning) * For events that happen multiple times per day, like walks, consider making a "walk #1" and "walk #2" I'm open to any suggestions on more ways to calculate correlations. Leave a review with your formula!

Latest release

What’s New

Version 1.6 Oct 9, 2021

Added "visualization" view. It's like that GitHub green square commit view, but for your tags. It allows you to visualize that's happening throughout the month.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
8 ratings
8 Aug 20, 2026 · 8 ratings Aug 20, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 20, 2026 · Free Aug 20, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 20, 2026 · 4:34 AM Free

Screenshots

CRL8 – Correlate daily habits iPhone screenshotCRL8 – Correlate daily habits iPhone screenshotCRL8 – Correlate daily habits iPhone screenshotCRL8 – Correlate daily habits iPhone screenshotCRL8 – Correlate daily habits iPhone screenshotCRL8 – Correlate daily habits iPhone screenshot CRL8 – Correlate daily habits iPad screenshotCRL8 – Correlate daily habits iPad screenshotCRL8 – Correlate daily habits iPad screenshotCRL8 – Correlate daily habits iPad screenshotCRL8 – Correlate daily habits iPad screenshot