# One Minute Changes

> Education

Canonical page: [https://chrome-stats.com/d/id778908544](https://chrome-stats.com/d/id778908544)

## Overview

- **ID:** `id778908544`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Justin Guitar
- **Category:** Education
- **Rating:** 4.30 / 5 (114 ratings)
- **Version:** 2.25
- **Last updated:** 2019-11-25
- **First published:** 2014-01-02
- **Size:** 66 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/one-minute-changes/id778908544)
- **Website:** [http://www.justinguitar.com/en/AP-005-OneMinuteChangesApp.php](http://www.justinguitar.com/en/AP-005-OneMinuteChangesApp.php)
- **Privacy policy:** [https://www.justinguitar.com/privacy-policy](https://www.justinguitar.com/privacy-policy)

## Description

One Minute Changes is a free Chrome extension from Justinguitar.com designed for beginner guitarists to track how many chord changes they can perform during the Beginner's Course. All chords used in the course are built in, and you can add your own chords as you practice.

It also provides statistics and can automatically identify the chords you struggle with most. If you enjoy it, be sure to explore Justinguitar's other apps.

## Rankings

- #132,586 — Overall

## Review summary

Many users praise One Minute Changes as an approachable, timer-driven tool that helps with chord-change practice and speeds, and note its clean interface and usefulness alongside Justin Guitar. Recurrent issues center on scoring (timer-only, not counting changes), unreliable audio alerts, limited library management (no delete/edit; ghost chords; occasional data resets), lack of long-term progress tracking, and uneven/chord-randomization behavior prompting requests for manual selection.

### Pros

- Helpful for practicing chord changes and increasing speed, especially when used with Justin Guitar course
- Easy-to-use, clean interface, with free access
- Timer-driven practice motivates consistent work and helps track session pace
- Left-handed mode option and chord charts aid accessibility
- Ability to add chords to a personal library for focused practice

### Cons

- Does not count chord changes; it only tracks timer seconds, so there is no true score
- Audio alerts and timer sounds can be too quiet or unreliable; users want adjustable volume and alert types
- Library management is limited: you cannot delete or edit chords, ghost chords may reappear, and updates can reset prior data
- No built-in long-term progress/history view to see performance over time
- Chord randomization is uneven; users want the ability to manually select chords or improve randomization

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Source: [Chrome-Stats](https://chrome-stats.com/d/id778908544)