# Chordana Viewer vs midiOS

The clearest difference is price: Chordana Viewer at $3.99 against midiOS's $24.99. Chordana Viewer also leads on device support (3 vs 1) and iOS requirement (11.0 vs 26.0). midiOS's advantage is in-app purchases (none vs 10) and update cadence (every 3 days vs every 2 months). On ads there is nothing between them.

Chordana Viewer costs $3.99 and midiOS $24.99 up front. Chordana Viewer sells 10 one-off in-app purchases. midiOS asks for nothing beyond the download.

Chordana Viewer ships an update every 2 months, midiOS every 3 days. The most recent releases landed on October 28, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Chordana Viewer | midiOS |
| --- | --- | --- |
| Price | **$3.99** | $24.99 |
| Rating | **[1.3 (3 ratings)](https://appshunter.io/ios/app/chordana-viewer/id711042441/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 461 MB | 341 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) | [jason merrill](https://appshunter.io/developer/1829076241) |

## What reviewers say

### Chordana Viewer

[App page](https://appshunter.io/ios/app/chordana-viewer/id711042441)

This application analyzes audio files to automatically generate chord charts for your favorite songs. It displays chords in real-time as the music plays and allows for manual editing and instrument pad playback.

**Highlights:** Automatic chord chart generation, Real-time chord display, Chord editing and manual input, Instrument pad playback, Tempo, key, and vocal balance customization, Email sharing and AirPrint compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CLEAN GUITAR | $0.99 | one-time |
| VA Synth 1 | $0.99 | one-time |
| ROTARY DRAWBAR 1 | $0.99 | one-time |
| XYLOPHONE | $0.99 | one-time |
| VIBRAPHONE | $0.99 | one-time |
| SYNTH STRINGS | $0.99 | one-time |
| SYNTH BRASS | $0.99 | one-time |
| PIANO PAD | $0.99 | one-time |
| STRINGS PIANO | $0.99 | one-time |
| STRINGS | $0.99 | one-time |


### midiOS

[App page](https://appshunter.io/ios/app/midios/id6755208218)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chordana Viewer free?

Chordana Viewer costs $3.99, and also offers in-app purchases.

### Is midiOS free?

midiOS costs $24.99, with no in-app purchases.

### Do Chordana Viewer or midiOS have ads?

Neither Chordana Viewer nor midiOS shows ads.

### Which is updated more often, Chordana Viewer or midiOS?

Chordana Viewer ships an update every 2 months, and midiOS every 3 days. Most recently, Chordana Viewer was updated on October 28, 2026 and midiOS on October 9, 2026.

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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.*