# The Great Lock-In — Goal & Habit Tracker

> Goal & Habit Tracker (iPhone/iPad app by Sohail Hussain.)

- Source: https://appshunter.io/ios/app/the-great-lock-in/id6752231202 (this page in markdown: same URL + `.md`)
- Developer: [Sohail Hussain](https://appshunter.io/developer/1815090104)
- Category: Productivity, Lifestyle
- Price: $1.99
- Age rating: 4+
- Requires: iOS 15.1 · 21 MB
- Languages: American English
- Released: 2025-09-10
- Data updated: 2026-06-01
- User reviews in markdown: https://appshunter.io/ios/app/the-great-lock-in/id6752231202/reviews.md

## What is The Great Lock?

Welcome to The Great Lock-In - your companion for the scientifically-backed 120-day habit formation journey.

Research shows it takes an average of 120 days to form a lasting habit. The Great Lock-In guides you through this transformative journey with powerful tools and daily motivation.

  KEY FEATURES:
  • 120-Day Challenge - Track your progress through the proven habit formation timeline
  • Multiple Habit Tracking - Build several positive habits simultaneously
  • Daily Check-ins - Stay accountable with quick, easy progress updates
  • Smart Reminders - Never miss a day with customizable notifications
  • Beautiful Analytics - Visualize your journey with insightful charts
  • Journal & Reflection - Document your thoughts and breakthroughs
  • Focus Mode - Dedicated sessions for deep work and productivity
  • Dark Mode - Easy on the eyes during evening check-ins
  • Data Export - Keep your progress safe with backup options

  WHY THE GREAT LOCK-IN?
  • Science-Based: Built on research showing 66 days for habit formation
  • Simple Yet Powerful: Clean interface that doesn't overwhelm
  • Privacy First: Your data stays on your device
  • One-Time Purchase: No subscriptions, lifetime access
  • Continuous Updates: Regular improvements and new features

Whether you want to exercise daily, meditate, read more, or build any positive habit, The Great Lock-In provides the structure and motivation you need to succeed.

  Join people who have transformed their lives one day at a time. Your 66-day journey to lasting change starts now!

## Chart rankings

- #185 in Top Paid · Productivity (US App Store)


## Version history (last 2 releases)

### 1.0.4 — 2025-09-11

Improved onboarding.

### 1.0 — 2025-09-10

No release notes.

## Apps similar to The Great Lock

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Alined: Habit Tracker](https://appshunter.io/ios/app/alined-habit-tracker/id6752546554) | 5.0 (2) | Free | Productivity |
| [Stedio – Checklist for Prep](https://appshunter.io/ios/app/stedio-checklist-for-prep/id6752489850) | 5.0 (1) | Free | Productivity |
| [T9 Dial Lite](https://appshunter.io/ios/app/t9-dial-lite/id1468218854) | 3.7 (3) | $0.99 | Productivity |
| [Pomodoro Focus Timer: Habit](https://appshunter.io/ios/app/pomodoro-focus-timer-habit/id6752237094) | — | Free | Productivity |
| [Animation Maker School](https://appshunter.io/ios/app/animation-maker-school/id6478944158) | — | $9.99 | Productivity |
| [Control - LLM Interface](https://appshunter.io/ios/app/control-llm-interface/id6752229004) | — | Free | Productivity |

## More apps by Sohail Hussain

- [ThyroidPal](https://appshunter.io/ios/app/thyroidpal/id6752246276)

All apps by Sohail Hussain: https://appshunter.io/developer/1815090104

## Related topics

[the great lock in](https://appshunter.io/ios/topics/the-great-lock-in)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*