# 1 to A vs Chord Progression Visualizer

The clearest difference is review sentiment: 1 to A at 100% against Chord Progression Visualizer's 0%. 1 to A also leads on rating (5.0 vs 3.0) and ads (none vs shown). Chord Progression Visualizer's advantage is iOS requirement (16.0 vs 18.5). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. 1 to A sells 1 one-off in-app purchase and Chord Progression Visualizer sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

1 to A holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of 1 to A's written reviews are positive against 0% of Chord Progression Visualizer's.

## The numbers

| Metric | 1 to A | Chord Progression Visualizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/1-to-a/id6747511294/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/chord-progression-visualizer/id6760151335/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 40 MB |
| Requires iOS | 18.5 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sean Moses](https://appshunter.io/developer/1821187325) | [WABI PLANT](https://appshunter.io/developer/668435822) |

## What reviewers say

### 1 to A

[App page](https://appshunter.io/ios/app/1-to-a/id6747511294)

Learn the Nashville Number System for music. Select a key and instantly see corresponding chords. Tap any number to view fingering diagrams.

**Highlights:** Nashville Number System explained, Chord translations for major keys, Fingering diagrams for chords, Key selection, Interactive chord lookup

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 to A Premium | $1.99 | one-time |


### Chord Progression Visualizer

[App page](https://appshunter.io/ios/app/chord-progression-visualizer/id6760151335)

Visually build and audition chord progressions with color-coded guidance. Sketch, record, and refine your musical ideas, then export them as MIDI to your DAW. Explore harmony and arrangements without needing extensive music theory knowledge.

**Highlights:** Visual chord progression builder, Color-coded harmony guidance, Sketch, record, and loop ideas, Adjust BPM and key, MIDI export to DAW, 19 chord types (premium)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PremiumPlna | $2.99 | per month |
| Premium1Year | $29.99 | per year |


## Frequently asked questions

### Is 1 to A free?

1 to A is free to download, with in-app purchases available.

### Is Chord Progression Visualizer free?

Chord Progression Visualizer is free to download, with in-app purchases available.

### Which has better reviews, 1 to A or Chord Progression Visualizer?

1 to A is rated higher. 1 to A averages 5.0 out of 5 from 2 ratings, while Chord Progression Visualizer averages 3.0 from 1 ratings.

### Do 1 to A or Chord Progression Visualizer have ads?

Chord Progression Visualizer shows ads; 1 to A does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*