# GoodHabits: 66-Day Tracker

> Habits in a 66-day arc

Canonical page: [https://chrome-stats.com/d/id1594176244](https://chrome-stats.com/d/id1594176244)

## Overview

- **ID:** `id1594176244`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Simon Bogutzky
- **Category:** Productivity
- **Version:** 3.0.2
- **Last updated:** 2026-08-17
- **First published:** 2024-10-29
- **Size:** 15 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/goodhabits-66-day-tracker/id1594176244)
- **Website:** [https://simonbogutzky.com/goodhabits.html](https://simonbogutzky.com/goodhabits.html)
- **Privacy policy:** [https://simonbogutzky.com/goodhabits-privacy-policy.html](https://simonbogutzky.com/goodhabits-privacy-policy.html)

## Description

New in 3.0: interactive widgets, a grace day for missed logs, and reminders you can check off right from the notification. No tracking — your data stays on your device.

One habit, one 66-day arc – calm, with no noise.

GoodHabits walks with you while you build a habit across a fixed arc of 66 logged days. The number comes from University College London research (Lally et al., 2010): there, the time until a new habit felt automatic was 66 days at the median – across a range of 18 to 254 days. So 66 is a reference point, not a finish line.

Why an arc instead of endless streaks:

- A manageable frame with a defined end, not a counter without a horizon
- A grace day: a missed day can be logged until the end of the following day
- Home Screen widgets – one glance is enough, and logging never opens the app
- Calm progress display that keeps your completed days visible

A good fit for:

- Morning routines and healthy habits
- Fitness and nutrition goals
- Productivity and work habits
- Mindfulness and self-care

No tracking, no analytics SDKs, no account: your data stays on your device.

If your habit still needs attention after 66 days, that is not failure – that is the spread the study actually reports.

## Rankings

- #2,163,727 — Overall

## Similar extensions and apps

- [Habity - Habit Tracking](https://chrome-stats.com/d/id6747450885)
- [66 day journey](https://chrome-stats.com/d/id6758518524)
- [66 Challenge](https://chrome-stats.com/d/id6758270405) — 5.00 / 5
- [Habit Tracker - TRAСKLY](https://chrome-stats.com/d/id6758329382)
- [66-Day Habit & Streak Tracker](https://chrome-stats.com/d/id6759220059) — 5.00 / 5
- [Habit Tracker by DevTechie.com](https://chrome-stats.com/d/id6757456356)
- [Hoodie: 66 Days Challenge](https://chrome-stats.com/d/id6752722210) — 5.00 / 5
- [66 - Build Your New Habit](https://chrome-stats.com/d/id6769550994)
- [(Not Boring) Habits](https://chrome-stats.com/d/id1593891243) — 4.80 / 5
- [66 Days - Habit Tracker](https://chrome-stats.com/d/id1439590647) — 4.10 / 5
- [Habitt: Simple Habit Tracker](https://chrome-stats.com/d/id6754791556)
- [Daily Habit Tracker: Goals](https://chrome-stats.com/d/id6761679168)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id1594176244)